Abstract

Disclosed in the present disclosure are a multi-metal material build device using laser three-dimensional printing. The multi-metal material build device includes an optical path system, a base plate, a powder collecting module, a left vertical plate, a right vertical plate, a powder falling module, a powder feeding mechanism, a slide rail, a slide connection block, a rear scraper, an L-shaped bracket, a powder storage strip and a front scraper, where the base plate, the left vertical plate and the right vertical plate form a build chamber, the powder collecting module is located at a front end below the base plate, the powder falling module and the powder feeding mechanism are located at a rear side above the base plate, and the powder feeding mechanism is located behind the powder falling module.

IPC Classes  ?

• B22F 12/41 - Radiation means characterised by the type, e.g. laser or electron beam
• B22F 12/53 - Nozzles
• B22F 12/67 - Blades
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A flexible retractable mooring system suitable for medium and shallow water operation, including first power generation devices, a second power generation device, and anchors; where the first power generation devices and the second power generation device are all connected to an offshore platform through mooring cables, and the first power generation devices are further connected to the anchors through anchor chains; the second power generation device is located directly below the offshore platform; and when the mooring system is operating, the mooring cables and the anchor chains are all in a tension state, and the first power generation devices and the second power generation device generate power by making use of tension of the mooring cables.

IPC Classes  ?

• B63B 21/50 - Anchoring arrangements for special vessels, e.g. for floating drilling platforms or dredgers
• B63B 22/02 - Buoys specially adapted for mooring a vessel
• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

Disclosed in the present invention is a combined power supply system based on a heat engine and a solid oxide fuel cell, comprising a gas turbine generator module, a heat exchange module, and a fuel cell supply module. The gas turbine generator module is coupled with the heat exchange module by means of a turbine; the turbine performs work to generate power for primary power generation, and is connected to the heat exchange module to heat air; the heat exchange module is connected to the fuel cell supply module to output the heated air to a cathode of the solid oxide fuel cell of the fuel cell supply module; a basic hydrocarbon fuel is input into an anode of the solid oxide fuel cell by means of a pipe; an output end of the solid oxide fuel cell is connected to a combustion chamber to perform oxygen-deficient combustion for power generation; and by connecting the turbine, a product which fails to be sufficiently combusted is re-combusted to perform work. The present invention promotes the transformation and upgrading of fossil fuel power plants, avoids resource waste, further improves the power generation efficiency, and is more energy-saving and environmentally-friendly.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H01M 8/04014 - Heat exchange using gaseous fluidsHeat exchange by combustion of reactants
• H01M 8/04746 - PressureFlow
• H01M 8/04701 - Temperature
• H01M 8/1246 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides

Abstract

The present invention relates to the technical field of vessels, and provides a device and method for raising/lowering a spud leg of a wind turbine installation vessel. The present invention comprises a spud leg and an installation box; corresponding through holes are formed in the top and bottom of the installation box; the spud leg is arranged in the through holes of the installation box and penetrates through the installation box; a first installation platform, a second installation platform, and a third installation platform that are vertically distributed are provided in the installation box, the first installation platform is provided with fixing devices for keeping the spud leg static, the second installation platform and the third installation platform are provided with pressing devices for controlling the spud leg to move downwards, an adjustment device for controlling the spud leg to move up and down is provided at the bottom of the installation box, and the adjustment device comprises a contraction component capable of being connected to or separated from the spud leg and a first winch connected to the contraction component; and two first racks which are symmetrical about the axis are arranged in the axial direction of the side wall of the spud leg. The present invention can improve the raising/lowering speed of the spud leg, reduce the risk that gears get stuck, and improve the working efficiency of the wind power installation vessel.

IPC Classes  ?

• E02D 17/08 - Bordering or stiffening the sides of ditches or narrow shafts for foundations

Abstract

Disclosed are a pile foundation capable of preventing tensioning of an anchor chain and formation of seafloor trenches, and an implementation method thereof. The pile foundation comprises a pile body of a steel pipe pile structure, and an expandable/contractable device disposed at the top of the pile body; the expandable/contractable device comprises a spring, a limiting rod, and a bottom cover and a top cover which are fixed to the upper end of the inner wall of the pile body; one end of the spring is fixed to the bottom cover, and the limiting rod penetrates downwards through the top cover and is fixedly connected to the other end of the spring; the height between the bottom cover and the top cover is greater than the maximum working length of the spring; a fixing ring allowing an anchor chain to pass through is disposed at the upper end of the limiting rod. The present invention can significantly enhance the bearing capacity reserve of an anchoring foundation, effectively slow down or avoid formation of seafloor trenches in front of the anchoring foundation, substantially prolong the service life of the anchoring foundation, and improve the safety of an offshore floating platform anchored by the anchoring foundation.

IPC Classes  ?

• E02D 27/12 - Pile foundations

Abstract

Disclosed is a power and freshwater supply system for an ocean integrated platform, falling within the field of offshore integrated power generation technologies and methods. A wind farm, a compressed air energy storage system with heat storage, a vortex tube, a temperature difference energy power generation system, and an energy management system are included. Leveraging the complementary characteristics of wind energy and temperature difference energy, a sustainable power and freshwater supply system for an ocean integrated platform is established, providing clean and reliable energy and freshwater resources for facilities such as islands in deep and distant sea, offshore oilfields, and mariculture.

IPC Classes  ?

• B63J 1/00 - Arrangements of installations for producing fresh water, e.g. by evaporation and condensation of sea water
• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

A real-time monitoring device for a polar nearshore marine environment is provided, including a cabin body, a main control cabin and a scraping structure, an outer wall of the cabin body is provided with collecting holes, an electric motor is arranged in the main control cabin, the electric motor provides power through a first rotating rod penetrating a side wall of the main control cabin. The scraping structure includes a power structure, a scraper and a collecting bucket, the scraper is arranged outside the cabin body and is fixedly provided with the collecting bucket. The power structure is connected to the first rotating rod and drives the scraper and the collecting bucket to rotate relative to the cabin body, the collecting bucket collects the floating objects on the outer wall and around the cabin body, and the floating objects enter the cabin body through the collecting holes.

IPC Classes  ?

• G01C 13/00 - Surveying specially adapted to open water, e.g. sea, lake, river or canal
• B08B 1/16 - Rigid blades, e.g. scrapersFlexible blades, e.g. wipers

Abstract

A device is applied to a rapid electro-gas welding method, which includes enabling a welding wire to extend out from a center hole of a large-angle bent conductive rod mechanism after passing through an arc swing mechanism to form an included angle between the welding wire and a groove center line of a narrow groove to be welded, driving an arc of the welding wire to perform a front and rear linear oscillating along a plate thickness direction and a left-right circular-arc swing around a welding torch center line in the narrow groove, and driving the welding torch, a water-cooled copper slider and the welding torch oscillating mechanism to move upwards together at a welding speed to enable a molten pool to be forced to solidify implementing the rapid electro-gas welding through a swing arc with a variable amplitude and a variable frequency in the narrow groove to be welded.

IPC Classes  ?

• B23K 9/133 - Means for feeding electrodes, e.g. drums, rolls, motors

Abstract

Disclosed in the present invention are a hydraulic launching device for an underwater vehicle, and an operating method therefor. The hydraulic launching device comprises an offshore platform, a platform stabilizing mechanism, a deep-sea submersible launching tube, an automatic release clamp and a vortex forming mechanism, wherein the offshore platform comprises a platform deck, a lifting assembly and a lower float assembly, the lifting assembly being mounted on the upper surface of the platform deck, a through hole being provided in the middle of the platform deck, the deep-sea submersible launching tube being arranged downwards from the through hole and connected to the platform deck, and the lower float assembly being mounted at the bottom of the platform deck and surrounding the deep-sea submersible launching tube; the automatic release clamp is connected to the lifting assembly, cooperates with the deep-sea submersible launching tube, and is configured to clamp a deep-sea submersible; and the platform stabilizing mechanism comprises a plurality of platform float stabilizers, and the platform float stabilizers are mounted spaced apart from each other on the upper surface of the platform deck in a circumferential direction. The present invention can improve the diving efficiency of a deep-sea submersible, and can reduce the combined interference from unknown wind, waves and currents when the deep-sea submersible runs in two distinct environmental mediums.

IPC Classes  ?

• B63B 23/00 - Equipment for handling lifeboats or the like

Abstract

Disclosed in the present invention is a flexible robot welding system for a middle rotary displacement pipe fitting. The flexible robot welding system comprises a clamp-type positioner and two welding systems located on two sides of the clamp-type positioner, wherein the clamp-type positioner comprises a driving wheel mechanism for driving pipe fitting to rotate and displace, and a clamp mechanism for pressing the pipe fitting; the clamp mechanism comprises a pressing wheel in contact with the pipe fitting, and a pressing-wheel driving device for driving the pressing wheel to ascend and descend, the pressing wheel rotating along with rotation of the pipe fitting and pressing the pipe fitting; the two welding systems are respectively located at two ends of the pipe fitting, and each welding system comprises a welding robot and an end pressing mechanism; and the end pressing mechanism comprises a pressing first roller in contact with the pipe fitting, and a roller driving device for driving the pressing first roller to ascend and descend, the pressing first roller rotating along with rotation of the pipe fitting and pressing the pipe fitting. The middle part and the two ends of the pipe fitting are pressed at the same time by means of the clamp-type positioner and the end pressing mechanism, such that straightness correction of the pipe fitting is achieved, thereby guaranteeing the welding quality.

IPC Classes  ?

• B23K 37/053 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work aligning cylindrical workClamping devices therefor

Abstract

A self-adjusting floating breakwater for wind-photovoltaic hybrid power generation, and an operating process. The self-adjusting floating breakwater comprises a floating breakwater (4), wherein a plurality of wind power generation mechanisms are arranged in the floating breakwater (4), each wind power generation mechanism comprising a pair of wind power generation devices (1), with a photovoltaic power generation device (2) being connected between the pair of wind power generation devices (1) by means of wind-photovoltaic linkage devices (3). The wind power generation devices (1) are height-adjustable wind power generation devices (1); the lifting and lowering of the wind power generation devices (1) drive the photovoltaic power generation device (2) to extend and retract. The present structure enables the combined or independent operation of wind and photovoltaic power generation to be automatically adjusted on the basis of sea conditions and weather conditions, thereby improving energy utilization efficiency and ensuring device safety.

IPC Classes  ?

• E02B 3/06 - MolesPiersQuaysQuay wallsGroynesBreakwaters
• H02S 10/12 - Hybrid wind-PV energy systems

Abstract

12121i21i2iiiiiii from a signal received by the i-th array element to obtain a signal not containing the self-noise component; and implementing removal of self-noise on each array element.

IPC Classes  ?

• G01S 15/02 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
• G01S 7/52 - Details of systems according to groups , , of systems according to group
• G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

Abstract

Disclosed in the present invention is a double-extraction unit heat supply boundary derivation method based on segmented power, comprising: step S1, determining limit working condition points of a double-extraction unit when a steam inlet amount, a #1 steam extraction amount, a #2 steam extraction amount, and power generation power are respectively at limit values; step S2, performing characteristic modeling on the double-extraction unit on the basis of working condition parameters of the limit working condition points, wherein the relationship among the steam inlet amount, the power generation power, the #1 steam extraction amount, and the #2 steam extraction amount is obtained through characteristic modeling; and step S3, segmenting an operating power range of the double-extraction unit on the basis of the power generation power of each limit working condition point, on the basis of the segment where the actual operating power of the double-extraction unit is located, as well as on the basis of the characteristic modeling and the working condition parameters of the limit working condition points, determining boundary points of the #1 steam extraction amount and the #2 steam extraction amount, and determining the range of the #1 steam extraction amount and the #2 steam extraction amount on the basis of the boundary points. The present invention implements determination of the heat supply boundary of the double-extraction unit.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation

Abstract

The disclosure belongs to a technical field of ship berthing equipment, and in particular to a ship auxiliary berthing device, specifically including: a first auxiliary component, a second auxiliary component and a third auxiliary component connected in sequence, the third auxiliary component is connected with a harbor shore, the first auxiliary component is abutted with the ship, and the first auxiliary component, the second auxiliary component and the third auxiliary component are all used for buffering and berthing the ship; the first auxiliary component includes an arc-shaped rod sliding in an arc shape, two ends of the arc-shaped rod are provided with buffering parts, the arc-shaped rod is arranged on a vertical plane, and the arc-shaped rod is concave to the ship.

IPC Classes  ?

• E02B 3/26 - Fenders

Abstract

A binuclear neutral iridium complex, and a preparation method therefor and the application thereof in the preparation of an organic electronic device. The present application further relates to an organic electronic device containing a binuclear neutral iridium complex, in particular to an organic light-emitting diode and the application thereof in display and lighting technology. By means of the optimization of a device structure, the concentration of the binuclear neutral iridium complex in a matrix is changed, such that the optimal device performance can be achieved, thereby facilitating an implementation of a high-efficiency, high-brightness and high-stability OLED device, and providing a good material option for full-color display and lighting application.

IPC Classes  ?

• C07F 15/00 - Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
• C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
• H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

Abstract

A mooring chain link length measurement device, comprising a base (1), a chain feeding device (2), jacking devices (3), and an external traction device. The jacking devices (3) include a first jacking device (31) and a second jacking device (32). The first jacking device (31) is located on two sides of one end of a groove, and is mounted on the base (1). The second jacking device (32) is located on two sides of the other end of the groove, and is slidingly connected to the base (1). A tensioning device (4) used for controlling the second jacking device (32) to slide is arranged beside the second jacking device (32). A measurement device (5) is arranged between the two jacking devices (3). When the first jacking device (31) works to fix a chain link, the second jacking device (32) stops sliding of the chain link, or an external traction device works to straighten and tension a mooring chain, and the measurement device (5) measures the length of a mooring chain link. The problem of the measurement precision being greatly reduced due to the vibration and displacement of the mode of clamping a chain link by movable calipers and clamping jaws is solved. The length of any number of chain link combinations can be measured, the measurement speed is high, and the flexibility is high. Further disclosed is a method for measuring the length of a mooring chain.

IPC Classes  ?

• G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness

Abstract

A bionic basilisk lizard robot and a control method therefor. The bionic basilisk lizard robot comprises a robot body (1), and robot legs and robot foots which are in bilateral symmetry; each robot leg comprises a first robot leg part (2) and a third robot leg part (3) which are hingedly connected to the robot body and are arranged in parallel, a second robot leg part (4) hingedly connected to the first robot leg part (2), and a fourth robot leg part (5) connected to the third robot leg part (3), and an upper joint, a middle joint, and a lower joint are sequentially formed. The robot is capable of walking on water, and the wave-making resistance is small during high-speed walking.

IPC Classes  ?

• B63H 1/32 - Flaps, pistons, or the like, reciprocating in propulsive direction

Abstract

A heat recovery system for hydrogen production with a solid oxide electrolysis cell, including a water storage tank, a solar cell panel, a low-temperature metal hydrogen storage tank, an evaporator, a high-temperature metal hydrogen storage tank, a heat exchanger, a solid oxide electrolysis cell, a separator, and a reactor is provided. After water in the water storage tank sequentially passes through the solar cell panel, the low-temperature metal hydrogen storage tank, the evaporator, the high-temperature metal hydrogen storage tank, and the heat exchanger for multi-stage heat exchange, water vapor reaching the working temperature enters the solid oxide electrolysis cell. The hydrogen generated after electrochemical reaction and unused water vapor flow out from the solid oxide electrolysis cell, firstly exchange heat with to-be-reacted water vapor through the heat exchanger and then enter the separator.

IPC Classes  ?

• C25B 9/67 - Heating or cooling means
• C25B 1/04 - Hydrogen or oxygen by electrolysis of water
• C25B 15/021 - Process control or regulation of heating or cooling
• C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes

Abstract

Disclosed in the present invention is a cruise ship shutter having heat preservation and noise reduction functions. Slats of the shutter are aluminum fiber sound absorption plates, each aluminum fiber sound absorption plate being provided with a plurality of circular through holes arranged uniformly; foamed particle sound absorption balls are embedded in the circular through holes, each foamed particle sound absorption ball consisting of the following components in parts by mass: 90-105 parts of an HB polymer cement-based waterproof coating JS-II, 4-6 parts of carbon powder, 2-3 parts of sawdust powder, 4-6 parts of 9003-35-4 high-temperature-resistant phenolic resin, 6-7 parts of high-temperature-resistant glass microbeads, 9-11 parts of superfine inorganic rock wool fibers, 145-155 parts of dust-free distilled water, and 48-52 parts of an AC sound insulation material foaming agent. The present invention solves the problem in the prior art that shutter materials cannot have the effects of sun shading, sound absorption or insulation and heat preservation at the same time.

IPC Classes  ?

• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

Abstract

Disclosed is a microreactor for continuous flow synthesis of 2,5-furandicarboxylic acid, the microreactor includes a first container, a collection device, an injection pump, a first flow pump, a second flow pump, a first microreactor substrate, ion exchange resin adsorption pipes, activated carbon adsorption pipes, a second microreactor substrate, an oxygen source, a first T-connector, a second T-connector, and a third T-connector; where the first container is connected to the first T-connector via the first flow pump, the injection pump is connected to the first T-connector, the third T-connector is connected to the first T-connector and the first microreactor substrate, respectively, the first microreactor substrate is connected to the ion exchange resin adsorption pipes, the activated carbon adsorption pipes, the second T-connector, and the second microreactor substrate in sequence, and the oxygen source is connected to the second T-connector. Further disclosed is a method for continuous flow synthesis of 2,5-furandicarboxylic acid.

IPC Classes  ?

• C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus

Abstract

Disclosed is a floating platform integrating wave attenuation with marine energy power generation and a working method thereof, the platform includes a breakwater, a tuned damping wave energy converter, and an offshore floating wind turbine. The breakwater includes double-cylindrical-boxes and connecting bulkheads, and a moon pool area is formed in a middle of the breakwater; the offshore floating wind turbine and the tuned damping wave energy converter are both connected to the breakwater through a connecting rod. A circular groove is formed on an inner side of each of the connecting bulkheads of the breakwater. The breakwater provides the floating base and power generation environment for the offshore floating wind turbine and the tuned damping wave energy converter, and a plurality of the tuned damping wave energy converters can be disposed, and are evenly distributed beneath the offshore floating wind turbine.

IPC Classes  ?

• F03B 13/00 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates
• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
• F03B 13/20 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein both members are movable relative to the sea bed or shore

Abstract

Disclosed in the present invention is an isosceles trapezoid-based deployable antenna parabolic reflecting surface networking method, comprising: on a plane from a top view perspective, establishing profiles of a deployable antenna mechanism, and dividing a profile having an isosceles trapezoid on the plane; at the center of the divided profile having the isosceles trapezoid, establishing a parabolic reflecting surface having a corresponding aperture size and curvature value; projecting the isosceles trapezoidal profile on the plane onto the parabolic reflecting surface so as to form a parabolic isosceles trapezoidal profile, intersection points at which line segments projected onto the parabolic reflecting surface intersect being feature nodes of a bottom surface of the isosceles trapezoid on the parabolic reflecting surface; establishing vertexes of the isosceles trapezoid above the bottom surface of the isosceles trapezoid on the parabolic reflecting surface, the vertexes and the feature nodes of the bottom surface of the isosceles trapezoid on the parabolic reflecting surface being connected to each other so as to form rectangular pyramid basic units of the isosceles trapezoid; and forming the rectangular pyramid basic units into a rectangular pyramid combined unit according to a circular pattern networking rule. The combined deployable antenna mechanism in the present invention has the advantages of high folding rate, high expandability and high support stiffness.

IPC Classes  ?

• H01Q 15/16 - Reflecting surfacesEquivalent structures curved in two dimensions, e.g. paraboloidal

Abstract

Provided in the present invention is an energy-balanced and high-efficiency routing method. The method uses a power control mechanism to reduce the energy consumption. The method includes a routing establishment stage and a data transmission stage. In the routing establishment stage, an aggregation node broadcasts a beacon packet at the maximum transmitting power to establish an initial path, and a receiving node updates a routing table according to beacon information and forwards the beacon packet. In a data forwarding stage, the present invention provides a new forwarding factor, and energy efficiency and an energy balance are comprehensively taken into consideration to select as an optimal next hop a node having a high energy efficiency and relatively sufficient energy, thereby prolonging the life cycle of a network. In addition, the present invention further provides a data protection and network reconstruction mechanism to deal with problems such as network topology changes and data forwarding failures, which are caused by node movements. Compared with other typical routing methods, the present invention exhibits a superior performance in terms of reducing the network energy consumption and prolonging the life cycle of a network.

IPC Classes  ?

• H04W 40/02 - Communication route or path selection, e.g. power-based or shortest path routing

Abstract

An ultrasonic-stirring narrow gap welding system and a welding method, and the ultrasonic-stirring narrow gap welding system includes a welding machine power source, a wire feeder, a narrow gap welding torch, and an ultrasonic stirring subsystem. A welding wire is fed into a narrow gap through the narrow gap welding torch provided above a groove, to generate an arc for welding. The ultrasonic stirring subsystem includes a stirrer and an ultrasonic device, a stirring rod is connected to the ultrasonic device and inserted into a molten pool to form a preset angle relative to the welding wire for stirring, and an ultrasonic-stirring narrow gap welding mode is realized.

IPC Classes  ?

• B23K 9/26 - Accessories for electrodes, e.g. ignition tips
• B23K 9/12 - Automatic feeding or moving of electrodes or work for spot or seam welding or cutting

Abstract

A cable-driven foldable and deployable capturing mechanism for launch and recovery of an unmanned underwater vehicle, comprising a bendable mechanism, a synchronous opening and closing mechanism, and a steel wire cable guide driving mechanism. According to the bendable mechanism, a distal section (1), a middle section (2) and a proximal section (3) are connected by means of a connecting rod transmission assembly to achieve bending movement. To further enlarge the grabbing range of the capturing mechanism, the synchronous opening and closing mechanism is introduced, and the mechanism is provided with three sets of folding and deploying branches which are symmetrically and evenly distributed and the steel wire cable guide driving mechanism; under the action of a linear electric push rod (101), only a single degree of freedom is required to achieve two-stage folding and deploying movement of synchronous bending and approaching, and on the basis of the dual movement characteristic, the operation of grabbing and locking the unmanned underwater vehicle is completed. A separation and unlocking action is completed by gradually releasing the elastic potential energy accumulated by deformation of a torsion spring (8) in a grabbing and locking state, so as to implement the launch of the unmanned underwater vehicle. The cable-driven foldable and deployable capturing mechanism for launch and recovery of an unmanned underwater vehicle has a flexible driving mode, can capture unmanned underwater vehicles of different models, has high universality, and can implement fast, accurate and stable launch and recovery operations.

IPC Classes  ?

• B63B 23/00 - Equipment for handling lifeboats or the like

Abstract

An intelligent electromagnetic induction heating leveling system, comprising: a trolley type leveler, an unmanned aerial vehicle temperature measurement device, indoor positioning devices used for converting position information of a trolley of the trolley type leveler and the unmanned aerial vehicle temperature measurement device into position parameters, and a control system. The system can perform, according to preset data parameters, data transmission by means of a wireless local area network and the unmanned aerial vehicle temperature measurement device and control the unmanned aerial vehicle temperature measurement device to move to a specified position. The system intelligently controls the leveling temperature and leveling time of a leveling area, and thus may be suitable for leveling of weld joints having different sizes and depths, and achieve a good leveling effect. Also provided is an intelligent electromagnetic induction heating leveling method.

IPC Classes  ?

• B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
• B21D 1/06 - Removing local distortions
• B21D 37/16 - Heating or cooling

Abstract

Disclosed in the present invention is a uniform sheet laser generation apparatus for optical diagnosis in an internal combustion engine cylinder, comprising a laser device, a uniform conversion lens group, a sheet light lens group and an endoscopic pipeline which are sequentially connected from left to right. The laser device can output laser of various wavelengths by means of a built-in frequency multiplication module; the uniform conversion lens group comprises a first plano-convex lens and a second plano-convex lens; the sheet light lens group comprises a first plano-convex cylindrical lens, a second plano-convex cylindrical lens and a third plano-convex cylindrical lens; laser beams of various wavelengths emitted by the laser device are transmitted to the uniform conversion lens group and are uniformly shaped; the laser beams uniformly shaped by the uniform conversion lens group are transmitted to the sheet light lens group for sheet shaping; and the laser beams shaped by the sheet light lens group are emitted through the endoscopic pipeline in the form of fan-shaped sheet uniform laser. According to the present invention, laser can enter an internal combustion engine cylinder through a smaller endoscopic channel in the form of uniform sheets, allowing for visual diagnosis.

IPC Classes  ?

• H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
• H01S 3/02 - Constructional details
• H01S 3/101 - Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
• G01M 15/04 - Testing internal-combustion engines
• G01N 21/39 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
• G01N 21/01 - Arrangements or apparatus for facilitating the optical investigation

Abstract

An icebreaking apparatus and an icebreaker, the icebreaking apparatus comprising a driving apparatus, an icebreaking unit and a cleaning apparatus. The icebreaking unit comprises multiple crushing wheels (8) used to crush ice, the driving apparatus drives the crushing wheels (8) to rotate, and multiple inclined recesses (11) are uniformly provided on the circumferential surface of each crushing wheel (8). The cleaning apparatus comprises cleaning units corresponding to the multiple crushing wheels (8). Each cleaning unit comprises a cleaning block (21) and a cleaning transmission assembly that drives the cleaning block (21) to rotate. The plane of rotation of each cleaning block (21) is parallel to the plane of rotation of a crushing wheel (8). When each cleaning block (21) rotates, the cleaning block (21) first contacts the recess bottom of an inclined recess (11) of a crushing wheel (8) and then separates, thereby taking away ice blocks in the inclined recess (11) of the crushing wheel (8).

IPC Classes  ?

• B63B 35/12 - Ice-breakers having ice-cutters
• B63B 35/08 - Ice-breakers
• B08B 9/087 - Cleaning of containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers

Abstract

An ice-removing device taking energy saving into account in front of a propeller of a polar transportation ship, and a method for eliminating adverse disturbance. The ice-removing device comprises an ice-removing mechanism and a vibration reduction mechanism, wherein an input end of the ice-removing mechanism is connected to a ballast water tank of a ship, and a guide pipe (3) having a plurality of ice-removing nozzles (2) formed facing away from the advancing direction of the ship is provided at an output end of the ice-removing mechanism; the vibration reduction mechanism connects the ice-removing mechanism to a stern shaft sleeve (8) of the ship that is provided with a propeller (9), and the vibration reduction mechanism comprises a guide vane (1), a hydraulic vibration reduction unit (19), an upper vibration reduction unit and a lower vibration reduction unit; and the upper vibration reduction unit absorbs vibration in the direction of the ice-removing mechanism, the lower vibration reduction unit absorbs vibration generated when the propeller (9) rotates at a high speed, in addition, because the upper vibration reduction unit and the lower vibration reduction unit vibrate in opposite directions, the vibration of the upper vibration reduction unit and the vibration of the lower vibration reduction unit can cancel each other out, such that adverse disturbance to a flow field near the propeller (9) caused by vibration brought about by the ice-removing mechanism and the propeller (9) can be quickly eliminated.

IPC Classes  ?

• B63H 1/28 - Other means for improving propeller efficiency
• B63B 35/08 - Ice-breakers
• F16F 15/023 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means

Abstract

A mobile-type ship de-icing and monitoring device, comprising a vehicle body (1) provided with swivel wheels (10). By means of an electromagnet (9) at the bottom, the vehicle body (1) can attach to a ship body and can move. Optical probes (2) capable of identifying coating tracks are arranged at the front and rear of the vehicle body (1). An automatic control chip (3) for controlling the movement is further provided in the vehicle body (1). The automatic control chip (3) also controls a microwave vibrator (8) for breaking ice by vibration and an infrared heating apparatus (7) for melting ice by heating. The top of the vehicle body (1) is provided with an infrared monitoring apparatus for monitoring the ice layer condition of the ship body, and a network uploading module (4) for transmitting ice layer information and apparatus position information. The present apparatus combines thermal ice melting and mechanical ice breaking, has wide range of de-icing, high efficiency, can achieve autonomous moving and de-icing, and can also be remotely controlled.

IPC Classes  ?

• B63B 59/10 - Cleaning devices for hulls using trolleys or the like driven along the surface

Abstract

A microreaction device and method for the continuous flow synthesis of furandicarboxylic acid. The device comprises a first container (1), a collection device (2), an injection pump (3), a first flow pump (4), a second flow pump (5), a first microreactor substrate (6), an ion exchange resin adsorption tube (7), an activated carbon adsorption tube (8), a second microreactor substrate (9), an oxygen source (10), a first T-connector (11), a second T-connector (12), and a third T-connector (13), wherein the first container (1) is connected to the first T-connector (11) by means of the first flow pump (4); the injection pump (3) is connected to the first T-connector (11); the third T-connector (13) is separately connected to the first T-connector (11) and the first microreactor substrate (6); the first microreactor substrate (6) is connected to the ion exchange resin adsorption tube (7), the activated carbon adsorption tube (8), the second T-connector (12) and the second microreactor substrates (9) in sequence; and the oxygen source (10) is connected to the second T-connector (12).

IPC Classes  ?

• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• C07D 307/68 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

Abstract

Disclosed is an underwater acoustic communication system based on a filter bank joint sub-carrier multidimensional index modulation and a method thereof. The system includes a transmitting terminal and a receiving terminal, the method is: conducting a joint index modulation at the transmitting terminal, firstly selecting an activated prototype pulse index by using a part of bits of a FBMC symbol, grouping the remaining transmitted information bits and all sub-carriers; using a part of the bits in each group to select the activated sub-carrier index, modulating the remaining bits to the activated sub-carriers by a constellation symbol mapping, forming a transmission signal after a filter bank modulation; and demodulating three parts of transmitted bits at a receiving terminal after an action of underwater acoustic channel, and recovering the original data bits by combining each part of decoding results.

IPC Classes  ?

• H04B 11/00 - Transmission systems employing ultrasonic, sonic or infrasonic waves
• H04B 13/02 - Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
• H04L 27/26 - Systems using multi-frequency codes

Abstract

A UWB-based unmanned ship positioning system and method, and a storage medium. The method comprises: arranging at least four UWB positioning base stations around a lake, establishing a positioning map region of the lake, and establishing a positioning coordinate system, a UWB positioning tag and an inertial measurement unit (IMU) being mounted on an unmanned ship; the UWB positioning tag respectively sending measured distance information between the UWB positioning tag and the UWB positioning base stations to a positioning processor in a shore-based control center; using the IMU to acquire acceleration and angular velocity information of the unmanned ship, and sending, to the positioning processor, real-time attitude information of the unmanned ship after undergoing vibration noise suppression; the positioning processor, according to the distance information and the real-time attitude information, implementing precise positioning calculation and updating of the real-time attitude information of the unmanned ship, and a map server displaying and presenting, in a two-dimensional or three-dimensional map, position information of the unmanned ship in the lake and the real-time attitude information thereof. The positioning costs are low, the precision is high, and there is not a great deal of external interference, thus, the present invention has practical promotion value.

IPC Classes  ?

• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
• H04W 4/02 - Services making use of location information

Abstract

A stainless steel composite plate with an excellent appearance, and a preparation method therefor. The method comprises three main steps, i.e., composite blank preparation, composite blank rolling, and composite plate separation and straightening, wherein in the step of composite blank preparation, three instances of vacuumizing and two instances of vacuum breaking are performed on a composite blank by means of a seamless steel pipe, and finally the vacuum degree is less than or equal to 10^-2 Pa; in the step of composite blank rolling, intermittent cooling and straightening are performed, and stacking cooling is performed using two steel plates which are at T^f-150°C to T^f+150°C; and in the step of composite plate separation and straightening, flattening is performed using a flattening machine, a transverse flattening force F1 being equal to ν×a×b×c^transverse×σ^transverse/(d×(ν-c^transverse/a)), and a longitudinal flattening force F2 being equal to a×b×c^longitudinal×σ^longitudinal/(d+c^longitudinal). The composite plate has an excellent appearance and an excellent interfacial bonding quality, the degree of unevenness is less than or equal to 3 mm/m, the composite interfacial bonding rate is 100%, the shear strength is greater than or equal to 300 MPa, and the yield and production efficiency are high.

IPC Classes  ?

• B21B 1/38 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets
• B21B 1/00 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations
• B21B 47/02 - Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal for folding sheets before rolling
• B21B 47/00 - Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
• B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• B32B 15/00 - Layered products essentially comprising metal
• B21C 37/02 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of sheets
• B21C 37/00 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape

Abstract

Provided is a rolling bearing remaining life prediction method based on a CV and a BHSMM model, belonging to the field of fault prediction. The method comprises: collecting vibration signals of a rolling bearing under a non-fault working condition or under different fault working conditions having different fault levels so as to obtain column vectors of the vibration signals, and obtaining a logistic regression function CV according to the column vectors and using same as observation values so as to effectively remove clutters in the vibration signals of the rolling bearing; optimizing an observation probability value according to Gaussian distribution so as to obtain the probability having autocorrelation; using beta distribution to optimize the state residence time, and obtaining a BHSMM model according to the optimized probability having autocorrelation; and designing classifiers for the BHSMM model so as to obtain a classifier having the maximum conditional probability, calculating the corresponding residence time, and obtaining the remaining life according to the residence time. The present invention achieves accurate prediction of remaining service lives of rolling bearings, thus better describing degradation processes and having a higher reality fitting performance; and uses a probability revaluation value as the intermediate variable, thus reducing the calculation complexity.

IPC Classes  ?

• G06F 30/17 - Mechanical parametric or variational design

Abstract

A multi-working-condition adaptive connecting device for a subsea manifold, comprising manifold flanges (1) respectively arranged at the fitting end parts of a left manifold and a right manifold. An intermediate disc (2) is arranged between the left manifold flange and the right manifold flange; the intermediate disc (2) is connected to the left manifold flange by means of a radial adaptive mechanism for compensating for a radial deviation and an axial adaptive mechanism for compensating for an axial deviation; the intermediate disc is also connected to the right manifold flange by means of a radial adaptive mechanism and an axial adaptive mechanism; the left manifold and the right manifold are each provided with a sealing shell (3); a left sealing shell (31) and a right sealing shell (32) are pressed and sealed by means of a pressing and sealing mechanism. According to the device, a certain degree of axial deviation and radial deviation generated in a use process of the manifolds can be self-adjusted by means of the joint action of shape reconstruction of connecting rods and a spring set on the intermediate disc, and the using conditions under various working conditions are thus met, thereby reducing the additional stress, and prolonging the service life.

IPC Classes  ?

• F16L 23/02 - Flanged joints the flanges being connected by members tensioned axially
• F16L 58/18 - Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings

Abstract

Disclosed in the present invention is a method for evaluating the surf-riding probability of a ship in irregular waves on the basis of AIS data, comprising: 1, on the basis of ship AIS data, establishing a probability density function of ship density; 2, selecting a representative ship route, selecting a plurality of test points at equal intervals and, according to a wave scatter diagram of a sea area near the test points, obtaining the probability of occurrence of a specific random sea condition of a target sea area; 3, calculating the surf-riding probability of the ship in random waves; 4, calculating the surf-riding probability of the ship at a test point of the representative ship route in a specific irregular wave of the random waves; and 5, calculating the surf-riding probability of the ship at the test point under each random sea condition, and calculating the surf-riding probabilities of the ship at the other test points on the basis of the same steps. The present invention addresses related difficulties in solving the occurrence of surf-riding motions of ships in irregular waves, and can forecast the probability of occurrence of the surf-riding motions of ships in irregular waves. Calculation results can directly produce the probability of the surf-riding motions of ships in irregular waves at high solving precision and high efficiency. The present invention is applicable to various ship types.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation

Abstract

A composite cylindrical pressure hull lined with metal ring ribs, and a processing apparatus and processing method therefor. The pressure hull comprises a composite cylindrical housing (5) and a plurality of metal ring ribs (14). The processing apparatus comprises a heating apparatus, a support (1), a driving apparatus, a separated metal mold (6) and an aluminum film (4), wherein the separated metal mold (6) is provided between two metal ring ribs (14), the outer wall surfaces of the separated metal mold (6), the metal ring ribs (14) and the aluminum film (4) form a cylindrical outer wall, and the separated metal mold (6) comprises a plurality of first mold plates (61) and second mold plates (62) which are alternately arranged. The pressure hull improves the ultimate load. The processing apparatus and processing method improve the processing efficiency.

IPC Classes  ?

• B63B 3/13 - Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
• B63B 73/70 - Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by using mouldsMoulds or plugs therefor
• B29D 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

A parameterized harmonic reducer flexspline expansion sleeve clamp, comprising an expansion sleeve (1) and a mandrel (3). The mandrel (3) is coaxially mounted inside the expansion sleeve (1). A flexspline (2) is mounted on an outer side of the expansion sleeve (1). The mandrel (3) and the expansion sleeve (1) are connected by means of a plurality of balls. When the mandrel (3) is displaced by an axial force, the balls are driven to roll in the same direction as the force, so that the inner diameter of the expansion sleeve (1) is expanded, thereby tightening the flexspline (2). The inner contour of the slotted expansion sleeve and the outer contour of the mandrel (3) are accurately described by means of parameterized equations, thereby improving the design precision of the clamp. The balls are placed between the slotted expansion sleeve and the mandrel (3), so that friction is reduced by means of rolling of the balls, thereby prolonging the service life of the clamp. Meanwhile, two different diameters of balls are adopted, so that deformation of the slotted expansion sleeve at different positions in the axial direction varies, thereby reducing damage at the connection between a cup bottom and a cup body of the flexspline, and improving the clamping precision of the clamp.

IPC Classes  ?

• B23B 31/40 - Expansion mandrels
• B23F 23/06 - Chucking arrangements

Abstract

A hollow robot joint module with an adjustable output mode, comprising an output flange shaft (1), wherein a harmonic reducer, a double-torque motor, a brake, an angle encoder and a driving controller (19) are sequentially mounted on the output flange shaft (1) from front to back, and the driving controller (19) can acquire data of the angle encoder and the double-torque motor in real time and control the brake to be opened and closed, so that the output mode is switched; the harmonic reducer, the double-torque motor and the brake are mounted on the output flange shaft (1) by means of a wave generator (4), and the output flange shaft (1) and the wave generator (4) are coaxially mounted. By means of the integrated application of a double-rigid-gear harmonic reducer, a double-torque motor, a friction brake and an angle encoder, on the basis of ensuring a compact structure, two different types of output modes are realized: a low-speed high-load mode and a high-speed low-load mode.

IPC Classes  ?

• B25J 17/02 - Wrist joints
• B25J 9/10 - Programme-controlled manipulators characterised by positioning means for manipulator elements
• B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
• H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters

Abstract

Disclosed in the present invention are an underwater thruster fault diagnosis method based on dynamic adjustment of a prediction beat, and a diagnosis system for an underwater thruster fault diagnosis method. The method comprises: collecting a dynamic signal of an underwater robot; establishing a gray prediction model; acquiring a time sequence of the dynamic signal at a current moment, and performing gray prediction on the time sequence to obtain a predicted trajectory; extracting fault features from the predicted trajectory on the basis of a modified Bayesian algorithm to obtain a fault feature prediction sequence; selecting, from the fault feature prediction sequence, a feature value of a prediction beat which changes with the slope of the fault feature prediction sequence as a fault feature value at the current moment; and substituting the selected fault feature value into a fault identification model for fault identification of an underwater thruster to obtain the fault degree of the underwater thruster at the current moment.

IPC Classes  ?

• G06F 18/24 - Classification techniques
• B63G 8/08 - Propulsion

Abstract

Disclosed in the present invention are a method for constructing and simplifying a methanol/biodiesel blended fuel detailed mechanism, comprising the steps of: coupling methanol and biodiesel detailed mechanisms, adjusting coefficients of sensitivity reactions, and performing verification to obtain a methanol/biodiesel blended fuel detailed mechanism; performing simplification and calculation on a plurality of typical methanol/biodiesel blended fuels by using a directed relation graph method and a method of directed relation graph with error propagation, so as to obtain a plurality of methanol/biodiesel blended fuel semi-detailed mechanisms; coupling the plurality of methanol/biodiesel blended fuel semi-detailed mechanisms, and performing verification to obtain a methanol/biodiesel blended fuel semi-detailed mechanism applicable to various methanol ratios; and deeply simplifying the semi-detailed mechanism by using an isomer elimination method and a global sensitivity analysis method, and performing verification to obtain a methanol/biodiesel blended fuel simplified mechanism. The methanol/biodiesel blended fuel simplified mechanism constructed by the present invention can be directly applied to numerical simulation of an engine combustion process.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation

Abstract

Disclosed in the present invention is a high-precision measurement and automatic erection method suitable for an allowance-free block of a ship, comprising: first, carrying out self-calibration on measurement devices, and measuring visible key points on block erection surfaces and the coordinate position of each trolley target ball; carrying out coarse matching on a fixed block and a movable block, obtaining an initial rotation matrix and an initial translation matrix of a key point set of each block erection surface, and obtaining a precise rotation matrix and a precise translation matrix; determining a movable block alignment manner, determining the position of each of trolleys relative to the movable block according to the coordinate position of the trolley target ball, and according to the precise rotation matrix and the precise translation matrix, obtaining a motion planning trajectory of the trolley; compensating a motion trajectory of the trolley to obtain a compensated path connection trajectory; and fusing position data of the trolley measured by two measurement devices, and feeding back and controlling the motion trajectory of the trolley. According to the method of the present invention, the automatic erection of the blocks of the ship is realized by means of self-calibration of the measurement devices, data resolution, automatic pose adjustment, compensation prediction, and control and feedback.

IPC Classes  ?

• B63B 73/10 - Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
• G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

Abstract

Disclosed are a submarine pipeline maintenance enhancement device and a usage method thereof. The device comprises a water ballast tank (1), a control cabin (2) and an operation cabin (3) which are connected in sequence from top to bottom, wherein the operation cabin (3) comprises a sealing area (34) and an operating area (35); the sealing area (34) is located on an inner wall of the operation cabin (3); by regulating internal and external pressure differences, the maintenance enhancement device separates from or is adsorbed on a submarine pipeline (4); and the operating area is located between the sealing area (34) and the submarine pipeline (4). The submarine pipeline maintenance enhancement device further comprises a maintenance mechanism. The maintenance mechanism comprises a wire laying wheel mechanism (22) and a steering wheel mechanism (23) which are arranged in the control cabin, a wire laying head (26) arranged in the operation cabin, and a moving mechanism connected to the wire laying head (26), wherein a wire laying material penetrating out of the wire laying wheel mechanism (22) is guided into the wire laying head (26) via the steering wheel mechanism, and the moving mechanism drives the wire laying head (26) to move transversely, longitudinally and/or annularly so as to conduct layered repair. The device can detect surface cracks and corrosion defects of the pipeline in advance and automatically repair the pipeline in a usage process of the submarine pipeline. Moreover, the interior of the pipeline does not require to be emptied, thereby decreasing maintenance time and increasing working efficiency.

IPC Classes  ?

• F16L 55/18 - Appliances for use in repairing pipes

Abstract

222O NPs, different ultrasonic treatments are introduced to induce changes of microbial cells and metabolism, and then a nano silver oxide material having a high recovery rate, a good dispersion performance and good insect inhibition characteristics is obtained by means of adjusting parameters such as Bt bacterium solution, silver precursor, pH of a reaction system, synthesis temperature and time in the synthesis process. The preparation method published in the present invention can be used in the green synthesis process of relevant nano metal oxides. The method has the characteristics of simple production process, environmental protection, relatively low cost and the like, and has great market application prospect and value.

IPC Classes  ?

• C12P 3/00 - Preparation of elements or inorganic compounds except carbon dioxide
• A01N 63/00 - Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates

Abstract

Disclosed are a preparation method and device for a fiber wire for friction stir welding, and a welding method for a fiber wire. The preparation method comprises the following steps: S1, spreading a bundle-shaped fiber material and pre-impregnating same in a shaping adhesive to form a unidirectional thin-layer fiber belt, and melting and plasticizing a thermoplastic polymer and then applying same onto the unidirectional thin-layer fiber belt to form a fiber coating belt; S2, axially winding the fiber coating belt to form a unidirectional multi-layer fiber/polymer prepreg wire having a circular section; and S3, slitting the unidirectional multi-layer fiber/polymer prepreg wire, keeping same in a semi-connected state, and performing hot-melting treatment and cooling to obtain a fiber wire that is fused after slitting. The fiber wire of the present invention can be uniformly and omnidirectionally distributed at a welding part during welding, thereby significantly improving the strength of a weld seam; slit fibers can be driven by a stirring head rotating at a high speed, so as to be distributed in a 360-degree omnidirectional mode, and the weld seam at all angles can be reinforced by the fibers, thereby avoiding the anisotropy of mechanical properties, which is possibly caused by fiber reinforcement, at the weld seam.

IPC Classes  ?

• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 65/06 - Joining of preformed partsApparatus therefor by heating, with or without pressure using friction, e.g. spin welding

Abstract

Disclosed in the present invention is a method for calculating the ultimate load of a metal-lined composite-material cylindrical shell. The cylindrical shell comprises an outer fiber composite-material layer and an inner metal layer. The method comprises: firstly, establishing a geometric equation, and dividing a fiber composite-material layer into several composite-material unit layers; cutting a metal layer into several metal unit layers having the same thickness; establishing a relationship between stress and strain in each composite-material unit layer and a relationship between stress and strain in each metal unit layer; according to an equilibrium relationship, performing calculation to obtain an in-plane stiffness matrix, a coupling stiffness matrix and a bending stiffness matrix of the cylindrical shell; establishing a linear buckling load model; by taking into consideration the damage to a material after the material is stressed, correcting the linear buckling load model; and by means of the corrected model, performing calculation to obtain the ultimate load. By taking a material damage model into consideration, the ultimate load of a metal-lined composite-material cylindrical shell is obtained by means of quantitative analysis, such that a crushing load of said type of multi-layer cylindrical shell is reliably predicted, and an assessment of compressive failure of a multi-layer composite cylindrical shell under external pressure is improved, thereby making the structural design safer and more reliable.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation
• G06F 113/26 - Composites

Abstract

A salvage ship with adjustable operation depth for surface leakage of crude oil and a salvage method therefor. The salvage ship comprises a ship hull (1), a crude oil salvage device arranged on the ship hull (1) and being slidable and rotatable horizontally along the ship hull, and an oil slick enclosure arm (2), wherein the crude oil salvage device comprises a bearing frame (3), a traction rear roller (4), a traction front roller (5), a conveyor belt (6), a hydrophobic and oil absorption sponge (7), a removable oleophobic press roller (8), and a stationary press roller (9). The salvage ship and the salvage method improve crude oil salvage efficiency and effectively recover leaked crude oil.

IPC Classes  ?

• B63B 35/32 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
• E02B 15/04 - Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials

Abstract

A friction and wear test apparatus for a camshaft under adjustable time-varying load working conditions, comprising a base plate (2) used for mounting a camshaft (1), a motor (3) connected to the camshaft (1) and capable of driving the camshaft (1) to rotate, a tappet (4) in linear contact with the camshaft (1) and used for simulating wear, two angle measuring heads (6) having digital displays (5), fixed above the tappet (4) and used for detecting a contact state, a loading apparatus (7) used for simulating the application of a variable load, an R-axis rotating platform (8) connected to the loading apparatus (7) and used for adjusting a tappet angle, and a vice (9) connected to the R-axis rotating platform (8) and used for adjusting movement in an XY plane. By means of ensuring a linear contact state between a cam and the tappet (4) and applying a variable load by means of a spring, the apparatus ensures that the cam is more consistent with actual variable-load working conditions, and meets the requirements of the variable load between the cam and the tappet under simulated actual working conditions. A test method for the friction and wear test apparatus for a camshaft under adjustable time-varying load working conditions is further provided.

IPC Classes  ?

• G01N 3/56 - Investigating resistance to wear or abrasion

Abstract

Disclosed in the present invention are a preparation method for a cobalt-cerium-copper composite aluminate nanosphere, a product thereof, and the use thereof in antibiotic production wastewater treatment. The steps of the preparation method comprise: formulating a solution A of cobalt nitrate, cerium nitrate, copper nitrate and aluminum nitrate; formulating a solution B of a template agent and sodium hydroxide; mixing the solution A and the solution B, and subjecting the mixed solution to magnetic stirring; after the stirring is completed, placing the mixed solution in an oil bath pan for heating and refluxing, so as to obtain a reaction mixture C; transferring the reaction mixture C into a high-pressure reaction kettle for a hydrothermal reaction; alternately carrying out centrifugal washing of a reaction product of ethanol and pure water, and then drying same in a drying box to obtain a catalyst precursor D; and placing the catalyst precursor D in a muffle furnace for firing, and cooling same to obtain a cobalt-cerium-copper composite aluminate nanosphere catalyst. The cobalt-cerium-copper composite aluminate nanosphere catalyst of the present invention presents the microtopography of nanospheres (80-100 nm), has abundant and stable catalytic wet oxidation active sites, and can effectively improve the catalytic wet oxidation treatment effect of antibiotic wastewater.

IPC Classes  ?

• B01J 23/83 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with rare earths or actinides
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• B01J 37/10 - Heat treatment in the presence of water, e.g. steam
• B01J 35/02 - Solids
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C02F 101/30 - Organic compounds
• C02F 101/34 - Organic compounds containing oxygen
• C02F 101/38 - Organic compounds containing nitrogen
• C02F 103/34 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups

Abstract

An intelligent preheating flash butt welding method considering temperature field change at a welding seam, comprising clamping, a pre-flashing stage, a preheating stage, a continuous flashing stage, an upsetting stage, and a reset stage, wherein in the pre-flashing stage, the time and pre-flashing frequency of one single pre-flashing are controlled according to the relationship between a welding current and a threshold current and a temperature field at the welding seam; in the preheating stage, the cooling time and preheating frequency of one single preheating are controlled according to the relationship between the welding current and the threshold current and the temperature field at the welding seam; in the continuous flashing stage, the starting point of the continuous flashing is determined according to the distance between movable and fixed clamps when the welding current is larger than the threshold current for the first time in the stage; and in the upsetting stage, the non-electric upsetting time is controlled according to the temperature field at the welding seam. The intelligent preheating flash butt welding method effectively improves preheating efficiency and welding quality.

IPC Classes  ?

• B23K 11/04 - Flash butt welding

Abstract

A liquid cooling plate 10 including a double-inlet composite flow channel, the liquid cooling plate comprising a topological flow channel 50 and straight flow channels 60 symmetrically arranged on two sides of the topological flow channel 50, wherein the two straight flow channels are each provided with a liquid inlet (51, 52) on the side away from the topological flow channel 50; the two liquid inlets (51, 52) are located on a symmetry line of the liquid cooling plate 10 in the lengthwise direction thereof; the topological flow channel 50 is provided, in a longitudinal direction, with two liquid outlets (53, 54) facing opposite directions; the two liquid outlets (53, 54) are located on a symmetry line of the liquid cooling plate 10 in the direction of the width thereof; and a cooling liquid enters the corresponding straight flow channels 60 through the two liquid inlets (51, 52), enters topological domain sub-flow channels after passing through the straight flow channels 60, and finally flows out of the liquid cooling plate 10 through the liquid outlets (53, 54). An optimization method for a flow channel of the liquid cooling plate. The liquid cooling plate includes a double-inlet double-outlet composite flow channel, can effectively improve the uniformity of the temperature of a battery during a cooling process, and can further reduce the power consumption.

IPC Classes  ?

• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 10/617 - Types of temperature control for achieving uniformity or desired distribution of temperature
• G06F 17/10 - Complex mathematical operations
• G06F 17/11 - Complex mathematical operations for solving equations
• G06F 30/20 - Design optimisation, verification or simulation
• G06F 113/08 - Fluids

Abstract

A preheating flash butt welding method, comprising clamping, a flash flattening stage, a preheating stage, a continuous flash stage, an upsetting stage and a reset stage, wherein in the flash flattening stage, the preheating stage and the continuous flash stage, according to the relationship between a welding current and a threshold current, a moving clamp is controlled to advance and retreat; and in the flash flattening stage, a flash flattening start point is determined according to the distance between the moving clamp and a stationary clamp when the welding current is greater than the threshold current for the first time in the stage, and similarly, a continuous flash start point of the continuous flash stage is determined. The flash butt welding method can automatically determine a flash flattening start point, realizes more accurate flash flattening, and avoids the waste of materials; in a preheating stage, preheating is stable, and material consumption is low; and in a continuous flash stage, the advantages of energy accumulation being fast, flash being not prone to experiencing interruption, and material consumption being low are achieved, and it is ensured that an optimal flash speed is achieved in the final flash stage.

IPC Classes  ?

• B23K 11/04 - Flash butt welding
• B23K 11/34 - Preliminary treatment

Abstract

Disclosed in the present invention is a spray gun trajectory planning method for a spraying robot, comprising: acquiring, by modeling, coordinate data of each triangular patch of a curved surface to be sprayed; according to film forming characteristics of a paint film sprayed by a spray gun and a target paint film thickness of said curved surface, setting spraying process parameters, the spraying process parameters comprising a spraying trajectory distance, a spraying speed, a spraying height and a spraying time; according to the spraying trajectory distance, selecting triangular patches meeting a spraying trajectory condition; solving points of intersection of the triangular patches meeting the spraying trajectory condition, to obtain a point of intersection of each key node of the spray gun; storing the points of intersection and normal vectors of the corresponding triangular patches into a normal vector matrix; solving a spraying posture of the spray gun according to the normal vector matrix; and connecting each key node by means of linear interpolation and circular interpolation, to obtain a spraying trajectory of the spray gun. By means of the method, the spraying trajectory of a spray gun is generated for a complex curved surface to be sprayed, thereby effectively improving the spraying quality.

IPC Classes  ?

• B25J 9/16 - Programme controls
• B05B 13/04 - Means for supporting workArrangement or mounting of spray headsAdaptation or arrangement of means for feeding work the spray heads being moved during operation
• G05B 19/408 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data

Abstract

Disclosed in the present invention are a production device and production method for a polymeric microcellular foamed pipe. The production method is implemented on the basis of a mold and a high-pressure closed container capable of driving the mold to rotate, and comprises: forming a thermoplastic polymer or a compound thereof into a pre-foamed pipe; cutting the pre-foamed pipe into a pipe which is not longer than the mold, and placing the pipe in the mold; placing the mold accommodating the pipe in a closed reaction kettle, introducing a supercritical fluid into the closed reaction kettle, and infiltrating the pipe in the supercritical fluid at a corresponding temperature and pressure, wherein the mold is always in a rotating state in the reaction kettle; and quickly releasing the pressure after the temperature in the reaction kettle is reduced for a period of time, and taking out the pipe in the mold to obtain a polymeric microcellular foamed pipe.

IPC Classes  ?

• B29D 23/00 - Producing tubular articles

Abstract

A device includes a water storage tank, a control cabin and an operation cabin which are sequentially connected from top to bottom, the operation cabin includes a sealing zone and an operation zone, the sealing zone is located on an inner wall of the operation cabin, a pressure difference between an internal pressure and an external pressure is adjusted to make the maintenance enhancing device separated from or absorbed on a subsea pipeline, and the operation zone is located between the sealing zone and the subsea pipeline.

IPC Classes  ?

• B29C 73/12 - Apparatus therefor, e.g. for applying

Abstract

Disclosed is an early warning method for an intelligent navigation operation risk, comprising: according to a ship area model, determining a safe navigation area; acquiring navigated sea region information and importing same into a radar plotting aid; according to the ship speed of the present ship, the heading of the present ship, water surface obstacle information, and underwater obstacle information, predicting coordinates of a point of encounter; and if, in a current route, the coordinates of the point of encounter are inside the range of the safe navigation area, re-planning the route. By means of establishing a quaternary ship area model, safe navigation boundaries of an intelligent ship are determined. Water surface information and underwater information are collected by using various devices to predict possible collision risks that will be encountered, promptly plan a new route, and change the heading and speed, so as to promptly avoid the risk of collisions. The collision risks of the intelligent ship are predicted in real time during navigation thereof, thereby improving the navigational safety of the intelligent ship.

IPC Classes  ?

• G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"

Abstract

A split-type multifunctional underwater arc welding power supply including a shore power supply module and an underwater power supply module is provided. The shore power supply module comprises a shore power supply main circuit unit and a shore power supply control unit. The shore power supply main circuit unit comprises an input filter circuit, an IGBT full-bridge inverter circuit, an intermediate frequency transformer, and an output rectification filter circuit. The underwater power supply module comprises an underwater power supply main circuit unit and an underwater power supply control unit. The shore power supply module is provided on the shore, and the underwater power supply module is carried underwater.

IPC Classes  ?

• B23K 9/10 - Other electric circuits thereforProtective circuitsRemote controls
• B23K 9/00 - Arc welding or cutting
• H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

422422 within 4.5 min at 300℃, to reach 99.4% of a theoretical hydrogen evolution capacity. This indicates that the composite hydrogen storage material has good low-temperature hydrogen adsorption/desorption dynamic properties and can realize a high hydrogen adsorption/desorption capacity. In addition, the composite hydrogen storage material has good cycling stability. In conclusion, the material has considerable application prospects in the field of hydrogen storage and provides a new thought for research and development of hydrogen storage materials.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• C01G 53/04 - Oxides
• C01B 6/04 - Hydrides of alkali metals, alkaline earth metals, beryllium or magnesiumAddition complexes thereof
• C01B 3/00 - HydrogenGaseous mixtures containing hydrogenSeparation of hydrogen from mixtures containing itPurification of hydrogen

Abstract

Disclosed in the present invention is a ship clearview screen. The clearview screen comprises: a fixing portion, which comprises a driving fixing portion and a driven fixing portion, the driving fixing portion and the driven fixing portion both being arranged on a ship body beside a porthole of a ship cab; a clearview screen portion, which is arranged on the fixing portion and comprises a rotary fixing base portion, a wind wheel, a protective housing and rotary glass, wherein the rotary fixing base portion is arranged on the fixing portion, the wind wheel and the protective housing are both arranged on the rotary fixing base portion, and the rotary glass is arranged on the wind wheel; and a high-pressure air delivery power portion, which is arranged on a deck of a ship and comprises a high-pressure air compressor and a high-pressure air delivery pipe, wherein the high-pressure air compressor is arranged on the deck of the ship, and the high-pressure air delivery pipe is connected to the high-pressure air compressor. The present invention can be mounted without the need for breaking a window, the position of the clearview screen at a porthole of a cab can be adjusted in a timely manner according to requirements, and the visible area of the clearview screen is not occupied.

IPC Classes  ?

• B63B 19/00 - Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
• B63B 19/02 - Windows specially adapted for ships or other waterborne vessels, e.g. clear-view screens or portholes
• B63B 19/08 - Ports or like openings in vessels' sides

Abstract

A method for constructing an evaluation index system for an autonomous berthing and unberthing function of a ship. The method comprises: dividing an autonomous berthing and unberthing process of a ship on the basis of a work flow, and taking each divided stage as a first-level index of an evaluation index system (101); preliminarily selecting second-level indexes under each first-level index according to the divided autonomous berthing and unberthing process (102); by using a statistical method, screening the second-level indexes on the basis of independence (103); by using an entropy weight method, determining the importance of the indexes on the basis of the significance of an information amount and according to the magnitude of an information entropy of each second-level index (104); and refining the evaluation index system, determining whether each second-level index can be further refined, and if so, continuing the division to generate third-level indexes (105). A method for constructing an evaluation index system for an autonomous berthing and unberthing function of an intelligent ship is provided, and by means of the method, corresponding evaluation index systems for different ship tonnages and carried devices can be constructed, such that the systems are applicable to various types of intelligent ships, and the subjectivity and randomness of manual screening for evaluation indexes are reduced.

IPC Classes  ?

• G06Q 10/0639 - Performance analysis of employeesPerformance analysis of enterprise or organisation operations

Abstract

Disclosed in the present invention is a rotor magnetic steel sheet mounting and pasting device. The device comprises: a mounting table; a magnetic steel splitting and mounting member, which comprises an N-pole magnetic steel splitting and mounting member, wherein the N-pole magnetic steel splitting and mounting member comprises a front-side magnetic steel mounting and fixing member, a rear-side magnetic steel mounting and fixing member and the magnetic steel splitting member, the front-side magnetic steel mounting and fixing member and the rear-side magnetic steel mounting and fixing member are both arranged on the mounting table, the front-side magnetic steel mounting and fixing member comprises a mounting and fixing plate, a mounting sliding track ring, a sliding member and a tightening member, the mounting and fixing plate is arranged on the mounting table, the mounting sliding track ring and the tightening member are both arranged on the mounting and fixing plate, and the sliding member is arranged on the mounting sliding track ring; and a magnetic steel conveying member, which comprises an N-pole magnetic steel conveying member and an S-pole magnetic steel conveying member. The present invention is rational in terms of structural design, high in terms of automation degree, high in terms of magnetic steel sheet separation efficiency, and high in terms of magnetic steel sheet pasting efficiency, and is capable of significantly reducing the labor intensity of workers.

IPC Classes  ?

• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets

Abstract

Disclosed in the present invention is an automatic adhering device for a magnetic steel sheet of a rotor assembly, comprising: a mounting stand; magnetic steel separation and mounting members, comprising an N-pole magnetic steel separation and mounting member and an S-pole magnetic steel separation and mounting member, and the N-pole magnetic steel separation and mounting member and the S-pole magnetic steel separation and mounting member being both arranged on the mounting stand; a magnetic steel adhesive applying member, comprising an adhesive applying fixing plate, a swing motor, a relay adhesive applying member and an adhesive filling member, the adhesive applying fixing plate being arranged on the N-pole magnetic steel separation and mounting member and the S-pole magnetic steel separation and mounting member; a rotor fixing member, comprising a numerical control indexing head and a magnetic steel tool, the numerical control indexing head being arranged on the mounting stand, and the magnetic steel tool being arranged on the numerical control indexing head; and a fast air-drying exhaust member. The present invention realizes a high automation degree, high production efficiency, stable production quality, and uniform adhesive applying on magnetic steel sheets, and can accelerate adhesive solidification, the adhesive smell can be automatically removed, and workers are prevented from inhaling the adhesive smell which affects the health.

IPC Classes  ?

• H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
• B05C 1/02 - Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles

Abstract

A pyram-shaped deep-sea pressure-resistance shell and a design method therefor. The shell comprises a conical shell, an annular combined shell, a cylindrical shell, a flange bolt, and a perforated thick plate; a bottom end of the conical shell is connected with a top end of the annular combined shell, the conical shell being in communication with an interior part of the annular combined shell; the perforated thick plate blocks the bottom end of the annular combined shell, the perforated thick plate and the annular combined shell being connected by means of multiple flange bolts; the cylindrical shell is disposed inside the annular combined shell, a lower end of the cylindrical shell being inserted in a gap between the annular combined shell and the perforated thick plate.

IPC Classes  ?

• B63G 8/04 - Superstructure
• G06F 30/17 - Mechanical parametric or variational design
• B63B 3/13 - Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls

Abstract

A method for filtering a deviation signal of a Hall position sensor for a robot joint. The method comprises: acquiring a duration of each Hall state during the operation of an electric motor (S10); calculating the current Hall average duration, the previous Hall average duration and a Hall average duration prior to the previous Hall average duration according to the duration of each Hall state (S20); determining an operation state of the electric motor according to a rotation speed (S30); if the electric motor is in an acceleration/deceleration state, calculating an ideal duration of the current Hall state by means of a three-step filter combined with a linear extrapolation filtering method (S402); and if the electric motor is in a steady-speed operation state, calculating an ideal duration of the current Hall state by means of a six-step filter combined with the linear extrapolation filtering method (S401). In the method for filtering a deviation signal of a Hall position sensor for a robot joint, two kinds of filters are provided for different operation states of an electric motor to achieve the best effect of filtering, and the manner of filtering provided in the method for filtering a deviation signal of a Hall position sensor for a robot joint avoids the situation of an estimated position of a rotor deviating due to the deviation of an absolute position.

IPC Classes  ?

• H03H 17/02 - Frequency-selective networks
• H02P 21/18 - Estimation of position or speed

Abstract

A method for in-position non-contact detection of the symmetry of a keyway of a shaft workpiece (1), comprising: establishing a detection system and establishing a system calculation coordinate system; controlling the shaft workpiece (1) to rotate, so that a laser displacement sensor (2) performs continuous data acquisition on a part under detection, and calculates and analyzes the acquired data to obtain a symmetry error of a cross section under detection; and moving the laser displacement sensor (2) in an axis direction to calculate symmetry error values of a plurality of cross sections of a keyway, so as to obtain a symmetry error of the keyway of the workpiece. The symmetry error value of the keyway is calculated by means of timely detected profile information of the cross sections of the keyway of the shaft workpiece (1), thereby avoiding the system error and the compensation difficulty caused by the use of a conventional ejector pin reference or V-shaped block introduction reference, eliminating the objectively existing positioning error of the laser displacement sensor (2), and ensuring the accuracy of a detection result.

IPC Classes  ?

• G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes

Abstract

Disclosed in the present invention is a permanent magnet synchronous motor sensorless control method for an agv transfer robot, comprising: determining an operating state of a permanent magnet synchronous motor; if the permanent magnet synchronous motor operates in a high-speed state, using a traditional sliding-mode observer for observation; and if the permanent magnet synchronous motor operates in a low-speed state, using a nonlinear observer based on a flux linkage model for observation. According to embodiments of the present invention, a traditional sensor-based control method is replaced with a sensorless control method, so that the device cost is effectively reduced. In the high-speed state and the low-speed state of the permanent magnet synchronous motor, the nonlinear observer based on the flux linkage model and the traditional sliding-mode observer are respectively used for observation, thereby solving the problems that a single observer is insufficient in precision and insufficient in torque during high-speed and low-speed observation.

IPC Classes  ?

• H02P 21/13 - Observer control, e.g. using Luenberger observers or Kalman filters
• H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
• H02P 21/18 - Estimation of position or speed
• H02P 21/24 - Vector control not involving the use of rotor position or rotor speed sensors
• H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
• H02P 25/022 - Synchronous motors

Abstract

A speed-position dual-working mode switching method and apparatus for a meal delivery robot. The method comprises: acquiring a travelling track signal of a meal delivery robot so as to determine that the meal delivery robot is on a preset travelling track (S10); and when the distance between the meal delivery robot and the closest target object reaches a preset value, converting, by means of an encoder, a rotational speed signal output by a servo motor controlling the meal delivery robot into a pulse signal, and then inputting the pulse signal into a servo driver so as to control the servo motor, thereby implementing switching from a speed mode to a position mode (S20). The rotational speed signal of the servo motor is converted into the pulse signal by means of the encoder and then the pulse signal is input into the servo driver, so that the switching efficiency of the speed/position mode is improved, the two working modes are mutually compatible, and the conversion is flexible.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

A leveling device having an energy recovery function, comprising a leveler (10) and an energy recovery device. The leveler (10) performs leveling by means of electromagnetic induction heating, and the energy recovery device collects wind energy generated during the operation of the leveler (10) and converts the wind energy into electric energy for use by a movable heating trolley (13). The leveler (10) comprises a variable-frequency power supply (11), a water chilling machine (12) and the movable heating trolley (13). The variable-frequency power supply (11) is mounted above the water chilling machine (12), supplies power needed by the water chilling machine (12) via a first electric wire assembly (31), and transmits power into the movable heating trolley (13) via a second electric wire assembly (33). A coaxial transformer and an electromagnetic induction heating coil are mounted in the movable heating trolley (13), wherein the coaxial transformer is used for reducing a current input by the variable-frequency power supply (11) within a safe voltage range, and the water chilling machine (12) is used for transferring heat in the variable-frequency power supply (11) and the movable heating trolley (13). The energy recovery device comprises a power generation part on the front side of the water chilling machine (12) and a current conversion part on the movable heating trolley (13). Further provided is a leveling method having the energy recovery function. The device can collect and store wind energy generated when the leveler performs leveling, and convert the wind energy into electric energy for use by the movable heating trolley, thereby improving the energy utilization rate.

IPC Classes  ?

• B21D 1/06 - Removing local distortions
• B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
• B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass

Abstract

A leveling device having an auxiliary heating function. The leveling device comprises a leveling machine (10), and an auxiliary heating device (20) mounted at the front side of a mobile vehicle (13) of the leveling machine, wherein the leveling machine (10) is connected to the auxiliary heating device (20) by means of first water pipe assemblies (31) and a first electric wire assembly (32); the leveling machine comprises a variable-frequency power supply (11), a water cooler (12) and the mobile vehicle (13); the water cooler is connected to the variable-frequency power supply by means of a second water pipe assembly (33); the variable-frequency power supply is connected to the mobile vehicle by means of third water pipe assemblies (35); the variable-frequency power supply is arranged above the water cooler; an embedded system on chip is provided inside the variable-frequency power supply and is used for controlling the auxiliary heating device; a coaxial transformer and an electromagnetic induction heating coil are mounted on the mobile vehicle; the coaxial transformer reduces an input current of the variable-frequency power supply to be within a safe voltage range; and the electromagnetic induction heating coil performs, by means of an electromagnetic induction principle, operation on an area for leveling. Further disclosed is a leveling method having an auxiliary heating function. The device can collect heat generated by the variable-frequency power supply and the mobile vehicle when working to perform auxiliary heating on an area to be leveled, such that the utilization efficiency of the energy of the leveling device can be effectively improved.

IPC Classes  ?

• B21D 1/06 - Removing local distortions
• B21D 37/16 - Heating or cooling
• B23K 31/00 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups
• B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass

Abstract

A heavy-load starting method for a freight robot, comprising: detecting within a first preset period whether a permanent magnet synchronous motor rotor satisfies a preset starting condition; and if permanent magnet synchronous motor rotor does not satisfy the preset starting condition, increasing a torque current until the preset starting condition is satisfied, and completing pre-starting; respectively using a first torque current and a pre-starting angle when the pre-starting is completed as an open-loop acceleration initial torque current and an open-loop acceleration initial angle; respectively increasing the torque current and the angle within a second preset period until open-loop acceleration is completed; respectively using a second torque current and an open-loop acceleration end angle when the open-loop acceleration is completed as a closed-loop acceleration initial torque current and a closed-loop acceleration initial angle; acquiring a current sector rotor position according to the closed-loop acceleration initial angle, open-loop acceleration time, and closed-loop acceleration time; and entering the heavy-load starting of the freight robot at the current sector rotor position and in the state of a closed-loop torque current.

IPC Classes  ?

• H02P 21/34 - Arrangements for starting

Abstract

Disclosed in the present invention is an apparatus for solidifying soft soil in a water-rich area by combining thermal evaporation with electro-osmosis, the apparatus comprising electrode assemblies, which are arranged within a foundation; a thermal evaporation assembly, which is set up on the electrode assemblies; and a direct-current power source, which is connected to the electrode assemblies. Pore water in a soil body is collected to anodes of the electrode assemblies, and is then transported, under the action of electro-osmosis, to cathodes which are located above the foundation; and the pore water is converted from a liquid state to a gas state under the action of the thermal evaporation assembly or is directly drained upwards in the liquid state, such that the problem of the consolidation effect of deep soil being relatively poor is effectively solved. The present invention can improve the consolidation effect of a soft soil foundation at a certain depth, thus improving the overall bearing capacity of the foundation, and meeting the specific requirements of practical engineering.

IPC Classes  ?

• E02D 3/11 - Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electrochemical means
• E02D 3/10 - Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

Abstract

A test method and system for autonomous berthing and unberthing of an under-actuated merchant ship. The method comprises the following steps: monitoring water area environment data, under-actuated merchant ship location data and under-actuated merchant ship state data by using a sensing module; a data processing module summarizing monitored data of the sensing module, and performing data fusion; on the basis of fused data, constructing, by means of a scenario generator, situational information of a water area where an under-actuated merchant ship performs autonomous berthing and unberthing, constructing under-actuated merchant ship motion state information by means of a ship motion simulator, and transmitting relevant information data to a server database; an algorithm module planning a ship berthing and unberthing route according to the relevant information data; an assessment module assessing an actual behavior of the under-actuated merchant ship; and if an assessment result is that same qualifies, repeating the steps until the autonomous berthing and unberthing ends, and if the assessment result is that same is unqualified, stopping testing and troubleshooting a problem.

IPC Classes  ?

• B63B 79/30 - Monitoring properties or operating parameters of vessels in operation for diagnosing, testing or predicting the integrity or performance of vessels

Abstract

Disclosed in the present invention is a method for detection processing of agglomeration occurring in a filamentous particle group in a fluidized bed. The method uses a pixel area method to accurately perform three-dimensional recognition on agglomerates, and is used for capturing three-dimensional overlap parts of flexible filamentous particles in a dense phase zone during an experiment process for shredded tobacco in a fluidized bed. An experiment device uses three flow-guiding plates having respective radians of 75°-80°, 60°-65° and 50°-55° to homogenize particles. An image discrimination method mainly comprises the following steps: step 1, synchronously photographing a cold-state experiment on shredded tobacco in a fluidized bed; step 2, loading the image information into a PC end; step 3, deleting the background; step 4, performing gray scale processing; step 5, acquiring a binarization threshold; step 6, performing primary color inversion; step 7, searching for a connected domain, calculating the area, and performing staining; step 8, deleting small areas; and step 9, acquiring the image and area of a target agglomerate. The system and method can analyze the formation of a shredded tobacco agglomerate in a riser zone, the area of the agglomerate and the whole process of twisting and changing of the agglomeration during an experiment process.

IPC Classes  ?

• G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
• F26B 3/08 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed

Abstract

4xy13+δ4xy13+δ13+δ cathode material powder. Further disclosed in the present invention is the use of the solid oxide fuel cell cathode material in low-temperature oxygen ion conductor-based solid oxide fuel cells and low-temperature proton ceramic fuel cells. The solid oxide fuel cell cathode material prepared in the present invention has good cell output performance.

IPC Classes  ?

• H01M 4/88 - Processes of manufacture

Abstract

An information acquisition system convenient for enterprise management, comprising: a bottom plate (1). A main body (2) is fixedly connected to the upper end of the bottom plate (1); a second connecting plate (13) is fixedly connected to the upper end of the main body (2); a second camera (14) is fixedly connected to one side end of the second connecting plate (13); a moving groove (5) is formed in one side end of the main body (2); four first connecting plates (8) are fixedly connected to the interior of the main body (2), and gears (9) are rotatably connected between the approaching ends of every two first connecting plates (8); the circumferential surfaces of the two gears (9) are connected to a toothed belt (10) in a meshing transmission manner; one side end of one first connecting plate (8) is fixedly connected to a motor (11), and an output end of the motor (11) is fixedly connected to one side end of one gear (9); a fixed block (7) is fixedly connected to one side end of the toothed belt (10). An air cylinder (28) is started to enable a brush (27) to clean the interior of a fingerprint time recorder (22), such that employees do not get viral infections by touching a same object.

IPC Classes  ?

• G07C 1/10 - Registering, indicating, or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity

Abstract

The invention belongs to the technical field of intelligent identification. Disclosed is an intelligent identification system based on characteristic classification, comprising an intelligent identification instrument body. A touch display screen is installed on a surface of the intelligent identification instrument body, and a plurality of control buttons are installed on the surface of the intelligent identification instrument body and located on one side of the touch display screen; a sliding groove is formed in the surface of one side of the intelligent identification instrument body, and a charging base is mounted on the surface of one side of the intelligent identification instrument body and located above the sliding groove; a protective cover is slidably connected to the surface of the intelligent identification instrument body; a height adjustment assembly is arranged at the top of the intelligent identification instrument body, and a steering adjustment assembly is arranged on the surface of the height adjustment assembly. While implementing intelligent identification of users, the present invention can also perform adjustment according to the height of users, and clean an identification area after fingerprint identification.

IPC Classes  ?

• G06V 40/12 - Fingerprints or palmprints
• G06V 10/12 - Details of acquisition arrangementsConstructional details thereof

Abstract

An unmanned ship positioning method based on multi-sensor data fusion. The method comprises the steps of: firstly preprocessing data, which is collected by a multi-sensor positioning system of an unmanned ship; then, by means of a confidence distance check, performing confidence level determination on positioning data of a plurality of sensors of the unmanned ship, and assigning a corresponding confidence factor to the checked positioning data; checking and compensating for fault data by using a consistency check and variance weighting; subsequently, performing filtering processing on the checked and weighted positioning data of the sensors on the basis of basic particle filtering, so as to realize data enhancement; and finally, performing fusion filtering output processing on the positioning data of the plurality of sensors of the unmanned ship by using a new threshold layered particle filtering algorithm, so as to obtain precise positioning information of a navigation trajectory of the unmanned ship. The method improves the fault-tolerance performance of a multi-sensor positioning system of an unmanned ship and increases the degree of algorithm association thereof, ensures the reliability of positioning data of sensors, and achieves the aim of precisely positioning a navigation trajectory of the unmanned ship.

IPC Classes  ?

• G01C 21/20 - Instruments for performing navigational calculations

Abstract

A modularized magnetic-coupling electric podded propulsor, comprising a box body (101), a main pod body (201) and a turbine cabin (301). The box body (101) is mounted on an outer circumferential surface of the main pod body (201) and is in communication with the interior of the main pod body (201) by means of pipes; an electric motor (202) and a magnetic coupling disc I (205) are arranged in the main pod body (201), and an electric motor main shaft (204) is coaxially connected to the magnetic coupling disk I (205); a turbine main shaft (305) and a magnetic coupling disc II (304) are arranged in the turbine cabin (301), the turbine main shaft (305) is mounted in the turbine cabin (301) by means of a bearing, one end of the turbine main shaft is coaxially connected to the magnetic coupling disc II (304), and one end of the turbine cabin (301) is connected to one end of the main pod body (201) by means of a flange disc (302), so that the magnetic coupling disc I (205) and the magnetic coupling disc II (304) are coaxially spaced apart and opposite each other and are magnetically attracted to each other; turbine blades (306) are arranged on the periphery of the turbine cabin (301); and inner rings of the turbine blades (306) extend into the turbine cabin (301) and are connected to the turbine main shaft (305). Torque is transmitted between the main pod body and the turbine cabin of the podded propulsor by means of magnetic coupling; and the electric motor main shaft does not have a complex dynamic sealing structure, and the main pod body is completely statically sealed, such that there is no risk of water seepage, and the reliability of the apparatus can be improved.

IPC Classes  ?

• B63H 5/07 - Arrangements on vessels of propulsion elements directly acting on water of propellers
• B63H 23/22 - Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing

Abstract

Disclosed are a high-speed high-current sliding current-carrying friction wear testing machine and a testing method, comprising: a driving apparatus and a loading apparatus, an output end of the driving apparatus having a first sample connected thereto, and the loading apparatus having a second sample mounted thereon; the loading apparatus driving the second sample to ascend and descend, and the first sample and second sample coming into contact and forming a friction pair; and the driving apparatus and the loading apparatus acting in concert to cause the second sample to produce various friction tracks on the surface of the first sample. According to the invention, a joint bearing is mounted on the outside of a conductive copper shaft, and a conductive lubricant is added between the joint bearing and the conductive copper shaft, thereby having the effects of lubricating, enhancing conductivity, supporting, compensating angle deviation, inhibiting high-speed circular runout, and ensuring thermal expansion space; during the testing process, a laser displacement sensor continuously monitors the position of a rotating transverse beam; when abrasion causes eccentric wear to a friction pair surface, an X-axis displacement platform actively compensates the direction of a disc sample, so that the end faces of the friction pair are kept in close contact, reducing high temperature and ablation damage caused by electric arcs.

IPC Classes  ?

• G01N 3/56 - Investigating resistance to wear or abrasion
• G01N 3/02 - Investigating strength properties of solid materials by application of mechanical stress Details
• G01N 3/04 - Chucks

Abstract

A non-slip-ring electric pod propulsion device, comprising an upper flange (101), a steering engine (102), an inner shaft (201), a bearing (202), a rim propeller (203), a housing member, an outer shaft (301), a first connection flange (302) and a second connection flange (303). The upper flange (101) is mounted on a deck. The two ends of the inner shaft (201) are respectively connected to the upper flange (101) and the rim propeller (203). The outer shaft (301) sleeves the inner shaft (201) by means of the bearing (202). The steering engine (102) is arranged on the deck at one side of the upper flange (101). One end of the outer shaft (301) is connected to a transmission shaft of the steering engine (102), and the other end of the outer shaft (301) is connected to the housing member by means of the first connection flange (302) and the second connection flange (303). The housing member covers the rim propeller (203). The device can avoid phenomena such as short circuits, entanglement and signal interference.

IPC Classes  ?

• B63H 5/14 - Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purposes
• B63B 73/20 - Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks

Abstract

A long-distance serial wire debug (SWD) interface circuit, comprising a first bidirectional data wire conversion circuit provided at a debugger and a second bidirectional data wire conversion circuit provided at a processor to be debugged, wherein the first bidirectional data wire conversion circuit is used for converting a serial data signal sent by the debugger into a differential signal and converting the received differential signal into a serial data signal received by the debugger; the second bidirectional data wire conversion circuit is used for converting a serial data signal sent by said processor into a differential signal and converting the received differential signal into a serial data signal received by the processor; the first bidirectional data wire conversion circuit comprises a first serial data receiving/transmitting module, a first analog switch, and a first inverter; and the second bidirectional data wire conversion circuit comprises a second serial data receiving/transmitting module, a second analog switch, and a second inverter. The circuit can realize the single-wire bidirectional communication function of the SWD under a long distance.

IPC Classes  ?

• G06F 13/40 - Bus structure

Abstract

A low-temperature carbon capture coupling cold energy and waste heat gradient utilization system for an LNG-powered vessel. The system comprises: an LNG evaporation side, wherein an LNG serves as a cold source of a first two-stage cascaded Rankine cycle, and after first-stage pressurization, first-stage heat exchange, second-stage pressurization, second-stage heat exchange and seawater temperature adjustment are performed, an NG is formed and then sent to an engine; an air side, wherein liquid oxygen is prepared by means of a low-temperature rectification method, cold energy of an air separation product is reused for air cooling and carbon capture, and the liquid oxygen is regasified and then sent to the engine; and a flue gas side, wherein after an exhaust-driven gas turbine does work on a flue gas discharged by a main engine, heat energy is provided for a second two-stage cascaded Rankine cycle, and then, after fourth-stage heat exchange and seawater cooling on the flue gas side are performed, water is separated out and then shunted, with one path being sent to the engine, and the other path being pressurized and then captured by means of low-temperature liquefaction. When a gas intake condition of a vessel is met, an oxygen-enriched combustion system for a main engine is constructed, and carbon dioxide in a discharged flue gas can be efficiently captured while cold energy and waste heat of a large vessel are fully recycled, thereby achieving the aim of energy conservation and emission reduction.

IPC Classes  ?

• F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
• F01K 15/04 - Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives the vehicles being waterborne vessels
• F01K 25/14 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours using industrial or other waste gases
• F01K 7/02 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
• F25J 3/04 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
• F01K 13/00 - General layout or general methods of operation, of complete steam engine plants

Abstract

Disclosed in the present invention is an intelligent electromagnetic induction back burning device for shipbuilding. The intelligent electromagnetic induction back burning device comprises a vehicle body, and an electromagnetic induction system, a high-frequency power source and a control cabinet, which are mounted on the vehicle body, wherein the electromagnetic induction system is installed at the top of the vehicle body. The electromagnetic induction system comprises a coil assembly, a coil adapter and a coaxial transformer, wherein one end of the coil adapter is connected to the coil assembly, and the other end thereof is connected to the vehicle body, so that the coil assembly faces an upper portion of the vehicle body; the coaxial transformer is installed on the vehicle body; and the coil adapter is in communication with the high-frequency power source by means of the coaxial transformer. The vehicle body and the electromagnetic induction system are respectively in signal connection with the control cabinet. Further disclosed is an operating method of an intelligent electromagnetic induction back burning device for shipbuilding. In the present invention, a control end is simple and easy to use, thereby greatly improving labor efficiency; an operator can operate away from a robot, such that the health of the operator is protected; and the apparatus has a simple structure, high reliability and is easy to maintain.

IPC Classes  ?

• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• C21D 1/42 - Induction heating
• C21D 11/00 - Process control or regulation for heat treatments

Abstract

An apparatus and method for reinforcing and rectifying an offshore wind turbine monopile foundation. The apparatus comprises a steel casing (11) fixedly sleeved on the wind turbine monopile foundation, and a plurality of steel frame structures (12) are uniformly fixed on the steel casing (11) in the circumferential direction; a composite foundation (4) is provided around the wind turbine monopile foundation, and the composite foundation (4) is formed by injecting cement into a soil body and performing stirring and reinforcement; a plurality of precast piles (3) used as ground anchors are provided in the composite foundation (4), and the plurality of precast piles (3) are annularly and uniformly arranged by using the wind turbine monopile foundation as a center; the steel frame structures (12) are connected to the precast piles (3) by means of anchor cables (2). During operation, the specific anchor cables (2) are tensioned in a graded manner to apply an external pulling force to the wind turbine monopile foundation, thereby realizing deviation rectification. The apparatus can solve the problems that a local scouring pit is enlarged and the mechanical property of a soil body is weakened, and can also realize comprehensive improvement of the vertical, horizontal and torsional bearing capacity of an original wind turbine monopile foundation.

IPC Classes  ?

• E02D 35/00 - Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
• E02D 5/74 - Means for anchoring structural elements or bulkheads
• E02D 27/12 - Pile foundations
• E02D 27/42 - Foundations for poles, masts, or chimneys
• E02D 31/00 - Protective arrangements for foundations or foundation structuresGround foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
• E02D 31/06 - Protective arrangements for foundations or foundation structuresGround foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water

Abstract

A ventilation-based drag reduction device, comprising a main housing (71), a first fairing assembly (72), a second fairing assembly (73), and a flow isolation assembly (74). The main housing (71) consists of a first segment (711), a second segment (712), a third segment (713), and a fourth segment (714), wherein the first segment (711) is used as a gas inlet end. The first fairing assembly (72) consists of a plurality of first fairing plates (721) vertically arranged in a cavity of the second segment (712); the second fairing assembly (73) consists of at least one second fairing plate (731) vertically arranged in a cavity of the third segment (713); the flow isolation assembly (74) is disposed in the cavity of the third segment (713) and is located on one side of the second fairing assembly (73); and the fourth segment (714) is used as a gas outlet end. According to the ventilation-based drag reduction device, the first fairing assembly, the flow isolation assembly, and the second fairing assembly are used for cooperative fairing, thereby reducing the turbulence intensity of high-pressure gas at the moment the high-pressure gas is discharged via a gas outlet, and facilitating the formation of a stable isolation gas layer at the bottom of a hull.

IPC Classes  ?

• B63B 1/38 - Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers

Abstract

A method for in-situ non-contact detection of a symmetry error of a keyway located on the shaft-type workpiece includes the following steps: establishing a detection system and a system calculation coordinate system; controlling rotation of a shaft-type workpiece, continuously acquiring data of a detection part by means of a laser displacement sensor, and calculating and analyzing the acquired data to obtain a symmetry error of a detection section; and moving the laser displacement sensor in an axis direction, and calculating symmetry errors of a plurality of sections of the keyway, to obtain a symmetry error of the keyway located on the shaft-type workpiece.

IPC Classes  ?

• G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
• G01B 11/00 - Measuring arrangements characterised by the use of optical techniques

Abstract

A plurality of modules are arranged on the broadside of a ship, each module includes a housing, and the housing is provided with a composite gas supply assembly, a composite airbag assembly, an intelligent control assembly, and a mechanical transmission assembly; the intelligent control assembly is configured for predicting the impact energy and a collision angle of a collision object, sending an inflation instruction to the composite gas supply assembly, inflating a large airbag to a proper air pressure, inflating a small airbag to a rated air pressure, and sending an angle adjustment instruction to the mechanical transmission assembly to adjust the collision angle of the small airbag; the large airbag is matched with the small airbag to fully absorb a collision force vertically acting on the surface of a hull.

IPC Classes  ?

• B63B 59/02 - Fenders integral with waterborne vessels or specially adapted thereforRubbing-strakes

Abstract

A modular cabin transfer device suitable for large luxury cruise ships includes transfer vehicles and pull rods, where each of the transfer vehicles includes a clamping device, clamping assemblies, and a driving assembly, the upper and lower ends of the clamping device are respectively provided with the clamping assemblies, the clamping device makes the clamping assemblies at the upper and lower ends thereof move toward each other or move backwards, and the clamping assemblies at the upper and lower ends thereof clamp the cabin; the driving assembly is arranged at the lower end of the clamping device, and is configured to drive the transfer vehicle to move; adjacent transfer vehicles are connected by the pull rods.

IPC Classes  ?

• B63B 29/02 - Cabins or other living spacesConstruction or arrangement thereof

Abstract

Disclosed are a towing device and a tugboat. The towing device comprises a towing rod and a connecting rod which are arranged at two ends of a carrier respectively, an iron core is arranged at the tail end of the towing rod, and a coil is wound on the iron core. The tail end of the connecting rod is made of a magnetic medium, the tail end of the iron core is provided with a towing rod insertion structure, and the tail end of the connecting rod is provided with a connecting rod insertion structure which fits with the towing rod insertion structure. The towing rod or the connecting rod is rotationally connected to a body of the carrier. Once the towing rod is in butt-joint connection with the connecting rod on another carrier under the action of an electromagnetic force, the towing rod rotates relative to the connecting rod to enable the towing rod insertion structure and the connecting rod insertion structure to be inserted or separated, thus achieving the connection or separation of a towing carrier and a towed carrier. The above towing device facilitates the quick and reliable connection or separation of the tugboat and a towed ship, thus reducing manpower and material resources during a towing process.

IPC Classes  ?

• B63B 21/56 - Towing or pushing equipment
• B63B 35/68 - Tugs for towing

Abstract

A stiffened corrugated egg-shaped pressure hull and a machining method therefor, relating to the technical field of deep-submergence vehicles. The stiffened corrugated egg-shaped pressure hull comprises a large-end flat closure plate (5), a small-end flat closure plate (1), longitudinal stiffeners (2), a ring stiffener (3) and corrugated egg-shaped shell pieces (4). Machining steps comprise: determining a stiffener contour equation of the longitudinal stiffeners (2); designing the cross section of the stiffened corrugated egg-shaped pressure hull; according to a shell piece exploded view, scribing, and cutting and blanking; bending twelve shell pieces; determining the size of the longitudinal stiffeners (2); machining the longitudinal stiffeners (2); assembling and welding the bent shell pieces and the longitudinal stiffeners (2); assembling and welding the flat closure plates at the two ends; machining the ring stiffener (3); assembling and welding the ring stiffener (3) on the pressure hull, so that the machining of the stiffened corrugated egg-shaped pressure hull is completed. The use of the corrugated egg-shaped pressure hull structure reduces the machining difficulty, and guarantees the safety; a variable-thickness stiffener structure is used, and the longitudinal stiffeners (2) and the ring stiffener (3) are welded on the outer side the egg-shaped pressure hull, so that the compression resistance and the material utilization rate are both improved; the overall quality of the shell is reduced while the strength and rigidity of the pressure hull are guaranteed, the costs are reduced, and machining and manufacturing are facilitated.

IPC Classes  ?

• B63B 3/13 - Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
• B63G 8/00 - Underwater vessels, e.g. submarines

Abstract

232233 as an additive, and using tert-butyl hydroperoxide as an initiator. The reaction has mild conditions and is insensitive to air and water, and the operation is simple and convenient, the reaction efficiency is high, and the target product is easy to purify. In addition, the present invention has a a wide reaction substrate range and good functional group tolerance, and most of the target product compounds can be obtained with good to significant yields.

IPC Classes  ?

• C07B 39/00 - Halogenation
• C07C 221/00 - Preparation of compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton
• C07C 225/14 - Compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton, at least one of the doubly-bound oxygen atoms not being part of a —CHO group, e.g. amino ketones having amino groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being unsaturated
• C07C 227/16 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions not involving the amino or carboxyl groups
• C07C 229/30 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and unsaturated

Abstract

0.60.40.8-xx0.23-y-δyy, wherein x is the doping amount of Nb, 0

IPC Classes  ?

• H01M 4/90 - Selection of catalytic material
• H01M 4/88 - Processes of manufacture
• H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells

Abstract

0.50.5 high-entropy alloy powder is first prepared by using a gas atomization device, and is then uniformly mixed with a Co powder to obtain a high-entropy alloy powder having a particle size within the range of 50-180 μm. A titanium alloy substrate is polished and sandblasted, and is then preheated; and the resulting high-entropy alloy powder is melted by using a laser cladding process, and is then coated onto the surface of the titanium alloy substrate to obtain a high-entropy amorphous-nanocrystalline coating. The resulting high-entropy amorphous-nanocrystalline coating has the characteristics of a high hardness, a fine structure, a good wear resistance, etc., and also has good application prospects.

IPC Classes  ?

• C22C 30/02 - Alloys containing less than 50% by weight of each constituent containing copper
• B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
• B22F 1/14 - Treatment of metallic powder
• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

The present disclosure provides a wave-dissipating and wave-resisting integrated floating photovoltaic device capable of resisting severe sea conditions, comprising at least one floating photovoltaic unit, wherein the floating photovoltaic units are connected through connecting pieces, and the connecting pieces can avoid collision between the floating photovoltaic units. The floating photovoltaic unit comprises a floating system, photovoltaic systems and a walkway system; the floating system is used for supporting the photovoltaic systems and bearing wave load impact; the photovoltaic systems are photovoltaic power generation systems; the walkway system is arranged between the photovoltaic systems, and the walkway system provides convenience for later maintenance of the floating photovoltaic device.

IPC Classes  ?

• B63B 1/40 - Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
• B63B 1/14 - Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently
• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
• B63B 43/18 - Improving safety of vessels, e.g. damage control, not otherwise provided for preventing collisionImproving safety of vessels, e.g. damage control, not otherwise provided for reducing collision damage
• H02S 30/10 - Frame structures
• H02S 10/40 - Mobile PV generator systems

Abstract

A truss-type main chord pipe (6) assembly precision control apparatus, which is used for clamping and positioning a main chord pipe (6) to facilitate precise welding of racks, and comprises: an operation platform (4) and at least two fixing apparatuses, wherein an operation notch is formed in the middle of the operation platform (4); the fixing apparatuses are fixed on two sides of the operation notch and used for clamping and positioning the main chord pipe (6) and for adjusting the butt-joint angle and flatness of the main chord pipe (6) to ensure that the racks on the two sides of the main chord pipe (6) are precisely welded to the surface of the main chord pipe (6). According to the apparatus, position calibration is carried out on the main chord pipe (6) and the racks by respectively using a movable laser range finder and a dial indicator (11) before and during pile leg segmented welding, so that the overall straightness is good after segmental welding of pile legs, the structure is stable, and the butt-joint precision is ensured. The present invention further relates to a truss-type main chord pipe assembly precision control method.

IPC Classes  ?

• B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work

Abstract

Provided are a device and a method for continuously testing the gas permeability coefficient of unsaturated soil under variable suction. The device comprises a gas supply device, a confining pressure device, a suction control device and an exhaust device, wherein an inner chamber of the testing device is used for placing a soil sample (6), and an outer chamber (13) of the testing device is used for storing a dialysis solution with a preset concentration and applying confining pressure; the gas supply device comprises an air compressor (1); one end of the confining pressure device is connected to the air compressor (1), and the other end of the confining pressure device is connected to the outer chamber (13) of the testing device; the air compressor (1) is used for inputting confining pressure gas into the outer chamber (13) of the testing device and conveying testing gas to the inner chamber of the testing device; the suction control device is used for applying and controlling suction to the soil sample (6); and the exhaust device is used for discharging the testing gas in the inner chamber. The gas permeability coefficient of the soil sample (6) under different water contents is obtained by monitoring changes in the suction of the soil sample (6), so that the operability of the test device is higher, and the test device is more convenient and faster.

IPC Classes  ?

• G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials

Abstract

A water treatment system of coupling a heat pump with multi-effect evaporation that comprises a lithium bromide absorption-type heat pump circulation system, a multi-effect evaporation circulation system and a compression-type heat pump circulation system is provided. The vapor in a tail-end evaporator of the multi-effect evaporation circulation system is introduced into a generator in the absorption-type heat pump to release heat and condense. A dilute solution in an absorber of the absorption-type heat pump is introduced into a first-effect evaporator to be evaporated by a treated water, and a condensation heat of the vapor generated by the generator of the absorption-type heat pump is recovered by an evaporator of a compressor heat pump, and another air source evaporator absorbs heat from ambient air to supply heat for the generator by a heat pump condenser.

IPC Classes  ?

• F25B 25/02 - Compression-sorption machines, plants, or systems
• B01D 1/00 - Evaporating
• B01D 1/26 - Multiple-effect evaporating
• B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
• F25B 41/24 - Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
• F25B 41/325 - Expansion valves having two or more valve members

Abstract

Disclosed is an electromagnetically inductive back-heating robot, comprising a frame structure, lifting hooks, wheels, driving motors, upper electromagnetic bars, lower electromagnetic bars, and a coil assembly. Four wheels are provided, and are arranged and mounted on four corner sides of the frame structure in a rectangular manner; each wheel is electrically connected to one driving motor; the driving motors are mounted on the frame structure; one lifting hook is mounted at each of four corners of a top plate of the frame structure; the upper electromagnetic bars are mounted on the upper surface of the frame structure; the lower electromagnetic bars are fixed to the lower surface of the frame structure; the coil assembly is mounted on the top or bottom of the frame structure. Also disclosed is a working method of the electromagnetically inductive back-heating robot. The present robot can work on the front and back surfaces of a horizontal steel plate, and can also work on the surface of a vertical steel plate or an inclined steel plate. A control end is simple and easy to use, labor efficiency is improved, labor intensity is reduced, workers can remotely operate the robot, and the health of the workers is protected. The structure is simple, and the reliability is improved.

IPC Classes  ?

• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
• C21D 1/42 - Induction heating

Abstract

The present disclosure discloses a system for intelligently leveling with an automatic temperature control function and a method thereof. The system includes a handcart-type leveller, indoor GPS positioning devices, an AGV trolley temperature measuring device and a control system. The control system processes position parameters of the AGV trolley temperature measuring device and the handcart-type leveller; converts the position parameters for the handcart-type leveller into position parameters for a leveling region, controlling the AGV trolley temperature measuring device to arrive at a lower part of the leveling region by a control chip and measuring temperatures in the leveling region; controlling an operation status of the AGV trolley temperature measuring device and transmitting data with the AGV trolley temperature measuring device. The method of the present disclosure is capable of intelligently controlling leveling temperatures and leveling time in the leveling region according to preset data parameters, thereby having excellent leveling effects.

IPC Classes  ?

• G01S 19/13 - Receivers
• B23K 1/00 - Soldering, e.g. brazing, or unsoldering
• G01K 13/00 - Thermometers specially adapted for specific purposes
• G05D 1/00 - Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
• G05D 1/02 - Control of position or course in two dimensions