A composition for use in modifying the adhesion properties of silicone rubber compositions is described. The composition comprises alkoxy silanes, such as alkoxy silanes further comprising additional chemical functional groups such as epoxides, esters, and anhydrides; diffusion promoters that are completely or partially immiscible in the silicone rubber composition being modified; and compounds that can balance the hydride content of the silicone rubber compositions being modified. Modified curable silicone rubber compositions and methods of modifying the adhesive properties of silicone rubber compositions are also described. In particular, use of the presently disclosed compositions can provide modified silicone rubber compositions having selective adhesion for surfaces comprising thermoplastic and thermoset polymers as compared to metal surfaces.
C08G 77/12 - Polysiloxanes containing silicon bound to hydrogen
C08G 77/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
C08G 77/08 - Preparatory processes characterised by the catalysts used
Filled compounds, including thermally conductive materials and compositions. The filled compounds include isocyanate reactive resins, conductive fillers, and isocyanate resins. The filled compounds can include two components, one with the isocyanate reactive resin and conductive filler, and a second with the isocyanate resin.
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/24 - Catalysts containing metal compounds of tin
C08K 3/013 - Fillers, pigments or reinforcing additives
Thermal interface materials and compositions. The thermal interface materials are thermally conductive at a first temperature range, but reduce thermal conductivity at a second or higher temperature range. Methods of controlling thermal load of a battery or mitigating thermal runaway in a battery, including using the disclosed thermal interface materials, are provided.
C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
C08K 3/013 - Fillers, pigments or reinforcing additives
Systems and methods for measuring a clearance between a rotating machine component and a sensor unit are disclosed. In some aspects, a system includes a sensor unit oriented to detect the rotating machine component as the rotating machine component rotates past the sensor unit, the sensor unit including at least a first sensing element and a second sensing element spaced apart from the first sensing element. The system includes a sensor processing unit in electrical communication with the sensor unit. The sensor processing unit is configured for receiving a first waveform from the first sensing element; receiving a second waveform from the second sensing element; and determining, based on a comparison between the first waveform and the second waveform, a distance between the blade tip and the sensor unit.
F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
5.
SYSTEM ARCHITECTURE FOR FUNCTIONAL SAFETY IN AN ACTIVE STEER-BY-WIRE SYSTEM
Disclosed is a force feedback system for use in steer-by-wire vehicles. The force feedback system provides active tactile feedback to the vehicle operator and provides safety control over the steer-by-wire vehicle. Also disclosed is a method of providing safe return of the steering control system of a steer-by-wire vehicle to a center position.
An electric vehicle emulation system and method is provided using at least one force generator (FG) to induce a vibration emulating the feel of an internal combustion engine in an all-electric, hybrid-electric, or alternative fuel vehicle. The FG may be a circular FG (CFG), a lincar FG (LFG), or a combination of both CFGs and LFGs.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
A shaft assembly for a torque measurement system having a shaft that rotates is provided. The shaft assembly includes a cylinder fitted on to a shaft having flexible area, where the targets are formed after the cylinder is secured to the shaft and/or a cylinder mounting surface.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
8.
ACTIVE/SEMI-ACTIVE STEER-BY-WIRE SYSTEM AND METHOD
A combined brake and motor providing tactile feedback control to a human-machine interface steering input device as part of a steer-by-wire system is provided. The brake is a tactile feedback device (TFD) brake and the motor is an electric motor coupled to the brake. The brake provides end stop control and resistive torque to the steer-by-wire system. The motor provides motion control to the steer-by-wire system, where motion control includes a return-to-center, a command following, an on-center control, an active force-feel, and/or a warning mode (e.g., similar to an aircraft stick shaker or a lane departure). The steer-by-wire system is an active system.
The present disclose describes a fluid isolator mount. The mount provides a long service life under high temperatures and large dynamic displacements. The mount utilizes metallic flexures and dynamic fluid chambers. The mount provides vibration isolation at selected frequencies while precluding damping effects.
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F16F 9/20 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with the piston-rod extending through both ends of the cylinder
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/346 - Throttling passages in the form of slots arranged in cylinder walls
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/43 - Filling arrangements, e.g. for supply of gas
10.
SENSING SYSTEM FOR DETECTING RUBS EVENTS OR WEAR OF AN ABRADABLE COATING IN TURBO MACHINERY
A sensing system and method for detecting wear of an abradable layer on a stationary engine casing is provided. The system is capable of measuring the abradable thickness of the abradable layer by embedding abradable sensor in the abradable layer and measuring the changing electrical properties as the abradable sensor wears.
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for
11.
FORCE GENERATOR WITH CENTER ATTACHMENT AND/OR REDUNDANT ATTACHMENT POINTS
The present disclosure provides an improved circular force generator having a housing configured to reduce vibrational forces transmitted to an aircraft structure. Additionally, the disclosed configuration provide the necessary safety redundancies required by the aviation industry. The circular force generator includes mounting point around the exterior of the CFG housing and a central mounting point thereby providing redundant mounting points.
A method is disclosed to smooth the ride of a seat occupant by controlling the damping force of a fluid damper positioned between the seat and base. The method selects between different subprocesses to minimize the ride discomfort and to minimize peak seat accelerations and endstop jerks. The controller uses the input from the different subprocesses to create the best ride for the immediate operational conditions.
A vehicle vibration control system (VCS) includes a vehicle having at least an engine, a transmission, a frame, a steering column with a steering wheel attached, a passenger cabin, and a controller area network (CAN) bus. The vibration and noise in the cabin and in or around steering column are bothersome to passengers in the passenger cabin. Linear force generators (LFGs) are used to control the noise and vibration in or around the steering column and/or steering wheel. Circular force generators (CFGs) are used to control noise and vibration in the passenger cabin. Sensors are used to measure the noise and vibration.
Reaction-induced crystallizable two-part polyurethane adhesive compositions formed from amorphous constituents. The two-part adhesive compositions can include a polyol resin comprising at least two functional groups, a mono-functional resin containing one functional group; and an isocyanate resin comprising at least two functional groups Methods of forming adhesive compositions are provided. Applications of such adhesive compositions are provided.
A tactile feedback device (TFD) drum brake has a drum rotor that creates at least two gaps and at least four shear surfaces. Magnetically responsive (MR) material is disposed within the gaps. The TFD drum brake further has an upper and lower magnetic seal to prevent the migration of the MR material from the gaps. The drum rotor is thin and rapidly saturates when a magnetic flux is generated. Controllable torque is created when the drum rotor is saturated. The controllable torque provides feedback to an operator of vehicle with the TFD drum brake installed.
G05G 5/03 - Means for enhancing the operator's awareness of the arrival of the controlling member at a command or datum positionProviding feel, e.g. means for creating a counterforce
H02K 1/22 - Rotating parts of the magnetic circuit
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
Compatibilizing agents for use in a wide variety of filled and unfilled liquid matrices and compositions comprising the agents are described. The compatibilizing agents can reduce the viscosity of the matrices and/or improve the stability of the matrices. Exemplary compatibilizing agents include one or more aryl sulfonyl derivatives, such as aryl sufonyl urethanes, aryl sulfonyl ureas, and aryl sulfonamides.
This disclosure provides a circular force generator system (100) which incorporates a failsafe component. The failsafe component provides a brake system on the circular force generator such that the rotor of the circular force generator is rapidly brought to a stop in response to a predetermined sensor output or a manual override of the circular force generator system.
H02H 7/093 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
H02H 3/05 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with means for increasing reliability, e.g. redundancy arrangements
H02H 3/20 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage
H02H 3/24 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to undervoltage or no-voltage
H02H 5/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
18.
COLD BONDING ADHESIVES FOR BONDING VULCANIZED RUBBER COMPOUNDS FOR INDUSTRIAL APPLICATIONS
One-part (1K) and two-part (2K) cold bonding adhesive compositions for bonding vulcanized rubber compounds are described. The compositions can be used to bond vulcanized elastomers, such as chloroprene and buffed natural rubber, to themselves or to metal. The compositions can be free of hazardous chemicals often used in cold bonding adhesives, such as monomeric isocyanates and/or trichloroethylene or other chlorinated solvents. The adhesives also offer easy application and long pot life.
In a multi-stage torsional coupling and associated methods of providing variable stiffness, the coupling has an inner member connected to a first torsional connection, a sprocket plate connected to the inner member, one or more plates connected to a second torsional connection, an outer member rigidly attached to the one or more plates, and a plurality of damping stages arranged for sequential engagement by movement of the sprocket plate relative to the one or more plates to provide a variable stiffness over a angle of angular displacement for the multi-stage torsional coupling. The sprocket plate is rotatable relative to the one or more plates to sequentially engage the plurality of damping stages to provide stiffness between the first and second torsional connections that increases in a non-linear, or stepped, manner as the amplitude of the angular displacement of the sprocket plate relative to the one or more plates increases.
F16D 3/12 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
20.
Engine mount system and elements for reduced force transmission and reduced static motion
Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.
B64D 27/26 - Aircraft characterised by construction of power-plant mounting
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
21.
COMPLIANT SHAFT-ROTOR COUPLING FOR IMPROVED END STOP EXIT
A steer-by-wire device for controlling a vehicle includes a housing; an input shaft that is rotatable relative to the housing and is configured to receive a rotary input from an operator of the vehicle at a first end of the input shaft, the first end being located external to the housing; a rotor attached to the input shaft at a second, opposite, end of the input shaft, the second end being located internal to the housing; a sensor for detecting an angular position, an angular velocity, and/or an angular acceleration of the input shaft relative to the housing; and a coil for generating a magnetic field to generate a rotary force or torque in the rotor to resist rotation of the rotor. The rotor is attached to the input shaft to allow a relative movement between at least a portion of the rotor and the input shaft.
A UV curable dielectric coating is described. The curable coating can include one of more acrylate monomers, a urethane prepolymer, a crosslinker, at least one adhesion promoter, a photoinitiator, and optionally one or more fillers and/or additives. The coating can be used to insulate battery cells and battery packs, such as those used in electric vehicles. The coatings can be easily applied and quickly cured. The cured coatings can have high adhesion strength, even after exposure to wet conditions.
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08K 13/06 - Pretreated ingredients and ingredients covered by the main groups
The present subject matter relates to devices, systems, and methods for identifying the position of a movable component. A position sensor system is provided in which a Hall effect sensor is coupled to a fixed housing, and a plurality of magnets is coupled to a movable component that is movable to a sensing position at which the plurality of magnets is proximal to the Hall effect sensor. In this configuration, the plurality of magnets is arranged to produce an aggregate magnetic field having a flux concentration directed toward the Hall effect sensor when the plurality of magnets is in the sensing position.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
An electric vehicle emulation system and method is provided using at least one force generator (FG) to induce a vibration emulating the feel of an internal combustion engine in an all- electric, hybrid-electric, or alternative fuel vehicle. The FG may be a circular FG (CFG), a linear FG (LFG), or a combination of both CFGs and LFGs.
A curable composition including a reactive monomer or oligomer with acrylate functionality, an amine, and an alkyl peroxide. The alkyl peroxide is free or substantially free of phenyl rings. The alkyl peroxide can be dilauroyl peroxide (DLP). The curable composition can also include 3,5-diethyl-1,2-dihyrdro-1-phenyl-2-propylpyridine (PDHP). The curable composition can be provided as a two-part adhesive composition, including an A-side with DLP and an acrylic monomer, and a B-side with PDHP.
A shaft assembly for a torque measurement system having a shaft that rotates is provided. The shaft assembly includes a cylinder fitted on to a shaft having flexible area, where the targets are formed after the cylinder is secured to the shaft and/or a cylinder mounting surface.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
27.
Methods and systems for reducing adhesive strength and associated pull-off stresses
Methods and systems for adhesively bonding a first substrate to a second substrate to reduce pull-off stress during separation of the first and second substrates include applying a first adhesive to a first bonding region of a bonding area of the first substrate, applying a second adhesive, which has an adhesive strength that is lower than an adhesive strength of the first adhesive, to a second bonding region of the bonding area of the first substrate, pressing the first and second substrates against each other to form an adhesive bondline, and curing the first and second adhesives for a predetermined period of time to form a cured adhesive bondline between the first and second substrates.
C09J 5/04 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving separate application of adhesive ingredients to the different surfaces to be joined
F16B 11/00 - Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
A system for controlling shaft displacement within a support structure, the system having a rotatable shaft, at least one bearing supporting the shaft, the at least one bearing having an inner race rotatable along with the shaft and an outer race circumferentially surrounding the inner race, an electromagnet assembly positioned about the shaft along a longitudinal axis thereof, and a controller that detects a radial motion of the shaft and determines a corrective force to reduce the radial motion of, or a parameter related to, the shaft, the controller commanding the electromagnet assembly to generate the corrective force to act on the shaft, the electromagnet assembly having a plurality of phases spaced circumferentially about the shaft, the controller commanding different phases of the electromagnet assembly to generate the corrective force so that a vector of the corrective force rotates about the longitudinal axis of the shaft.
F16C 27/04 - Ball or roller bearings, e.g. with resilient rolling bodies
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
F01D 25/16 - Arrangement of bearingsSupporting or mounting bearings in casings
F16C 19/06 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row of balls
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
29.
Rotating machine component clearance sensing systems and methods
Systems and methods for measuring a clearance between a rotating machine component and a sensor unit are disclosed. In some aspects, a system includes a sensor unit oriented to detect the rotating machine component as the rotating machine component rotates past the sensor unit, the sensor unit including at least a first sensing element and a second sensing element spaced apart from the first sensing element. The system includes a sensor processing unit in electrical communication with the sensor unit. The sensor processing unit is configured for receiving a first waveform from the first sensing element; receiving a second waveform from the second sensing element; and determining, based on a comparison between the first waveform and the second waveform, a distance between the blade tip and the sensor unit.
F01D 21/00 - Shutting-down of machines or engines, e.g. in emergencyRegulating, controlling, or safety means not otherwise provided for
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
A one-part adhesive including a grafted phenoxy resin, a polymaleimide compound, an organic carbonate, and an optional silane adhesion promoter is described. More particularly, the grafted phenoxy resin includes carboxylic acid and acrylate ester functionality. Methods of using adhesives to bond a thermoplastic urethane to a rigid substrate, e.g., in an injection or compression molding process, are also described.
C09J 151/08 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsAdhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
31.
ACTIVE/SEMI-ACTIVE STEER-BY-WIRE SYSTEM AND METHOD
A combined brake and motor providing tactile feedback control to a human-machine interface steering input device as part of a steer-by-wire system is provided. The brake is a tactile feedback device (TFD) brake and the motor is an electric motor coupled to the brake. The brake provides end stop control and resistive torque to the steer-by-wire system. The motor provides motion control to the steer-by-wire system, where motion control includes a return-to-center, a command following, an on-center control, an active force-feel, and/or a warning mode (e.g., similar to an aircraft stick shaker or a lane departure). The steer-by-wire system is an active system.
Torque sensing devices, systems, and methods are capable of measuring and/or determining a torque being transmitted through a shaft by measuring the torsional deformation of the shaft over a short length thereof. Such devices, systems, and devices have a sensor positioned adjacent to the outer surface of the shaft as it rotates, the sensor being positioned to maintain a substantially constant distance between the sensor and the outer surface of the shaft. The sensors may be variable reluctance (VR) sensors rigidly attached to a frame mounted on a bearing (e.g., a hanger bearing), which is mounted on the shaft, such that relative radial motion between the shaft and the VR sensor is minimized (e.g., so that they move in unison). Reducing this amount of motion results in a more accurate torque measurement.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
Torque is applied to an inner member of a torsional coupling. The first stage (low torque) has a bonded part in series with a set of compression style coil springs. The torsional stiffness of the bonded part is approximately 25% of the resulting torsional stiffness provided by the coil springs. In the second stage (high torque), tangs on the inner member engage with a sprocket plate, transferring torque to the coil springs. The coil springs are held in place by a unique geometry on the sprocket plate and spring holders, which prevent metal-to-metal contact between the coil springs and upper and lower housing portions of the torsional coupling. Surface effect damping occurs at very high torques when the rubber molded around the tangs on the inner member rub on bumps formed on the lower housing portion. A thrust bearing reacts axial forces and eliminates metal-to-metal contact.
F16F 15/127 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs using plastics springs combined with other types of springs
34.
SENSING SYSTEM FOR DETECTING RUBS EVENTS OR WEAR OF AN ABRADABLE COATING IN TURBO MACHINERY
A sensing system and method for detecting wear of an abradable layer on a stationary engine casing is provided. The system is capable of measuring the abradable thickness of the abradable layer by embedding abradable sensor in the abradable layer and measuring the changing electrical properties as the abradable sensor wears.
F01D 11/12 - Preventing or minimising internal leakage of working fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible, deformable or resiliently biased part
35.
MOLDABLE SILICONE ELASTOMERS HAVING SELECTIVE PRIMERLESS ADHESION
A composition for use in modifying the adhesion properties of silicone rubber compositions is described. The composition comprises alkoxy silanes, such as alkoxy silanes further comprising additional chemical functional groups such as epoxides, esters, and anhydrides; diffusion promoters that are completely or partially immiscible in the silicone rubber composition being modified; and compounds that can balance the hydride content of the silicone rubber compositions being modified. Modified curable silicone rubber compositions and methods of modifying the adhesive properties of silicone rubber compositions are also described. In particular, use of the presently disclosed compositions can provide modified silicone rubber compositions having selective adhesion for surfaces comprising thermoplastic and thermoset polymers as compared to metal surfaces.
C08G 77/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
C08G 77/08 - Preparatory processes characterised by the catalysts used
A lateral isolator (200) has a tubular body with an upstream end and a downstream end. The lateral isolator (200) also includes an inner member (210) having a pivot ring (220) disposed within the tubular body. A first elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the upstream end. A second elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the downstream end.
Systems and method for active vibration control on an aircraft. An active vibration control system (AVCS) is configured for an aircraft having an aircraft structure and a gun. The AVCS includes at least one control sensor on the aircraft, at least one force generator on the aircraft, and at least one controller in electronic communication with the sensor and the force generator. The controller is configured for determining, using the at least one control sensor, force generating commands for controlling vibrations acting on the aircraft structure, sending the force generating commands to the at least one force generator, causing the at least one force generator to produce a vibration canceling force, determining that the gun is firing, and in response to determining that the gun is firing, determining different force generating commands and sending the different force generating commands to the at least one force generator.
A method is disclosed to smooth the ride of a seat occupant by controlling the damping force of a fluid damper positioned between the seat and base. The method selects between different subprocesses to minimize the ride discomfort and to minimize peak seat accelerations and endstop jerks. The controller uses the input from the different subprocesses to create the best ride for the immediate operational conditions.
A method is disclosed to smooth the ride of a seat occupant by controlling the damping force of a fluid damper positioned between the seat and base. The method selects between different subprocesses to minimize the ride discomfort and to minimize peak seat accelerations and endstop jerks. The controller uses the input from the different subprocesses to create the best ride for the immediate operational conditions.
A system has a fin with an upstream end, a downstream end, a wall interface (412), a carrier interface (414) offset from the wall interface (412) in a radially inward direction, and an impact surface (418). The impact surface extends between an upstream end of the wall interface and an upstream end of the carrier interface. The impact surface (418) has a substantially flat portion configured to cause flow stagnation. The fin (306) has a side surface (416) extending between the impact surface (418), the wall interface (412), and the carrier interface. The impact surface (418) is joined to the side surface (416) by an edge profile (420) configured to cause turbulence or separation of the fluid flow from the fin.
Systems and methods for measuring twist on a shaft of a rotating drive system include a first set of targets circumferentially distributed around the shaft at a first axial location to rotate with the shaft and a second set of targets circumferentially distributed around the shaft at a second axial location to rotate with the shaft. The first and second sets of targets are interleaved. The system includes a sensor assembly including one or more sensors mounted around the shaft and configured to detect the first and second sets of targets as the shaft rotates. The system includes a sensor processing unit for receiving an electrical waveform from the sensor assembly, determining, based on the electrical waveform, a twist measurement of twist motion between the first axial location and the second axial location on the shaft, and determining, based on the electrical waveform, a second measurement of shaft motion.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01K 7/16 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements
42.
VEHICLE ACTIVE VIBRATION CONTROL SYSTEM AND METHOD
A vehicle vibration control system (VCS) includes a vehicle having at least an engine, a transmission, a frame, a steering column with a steering wheel attached, a passenger cabin, and a controller area network (CAN) bus. The vibration and noise in the cabin and in or around steering column are bothersome to passengers in the passenger cabin. Linear force generators (LFGs) are used to control the noise and vibration in or around the steering column and/or steering wheel. Circular force generators (CFGs) are used to control noise and vibration in the passenger cabin. Sensors are used to measure the noise and vibration.
Reaction-induced crystallizable two-part polyurethane adhesive compositions formed from amorphous constituents. The two-part adhesive compositions can include a polyol resin comprising at least two functional groups, a mono-functional resin containing one functional group; and an isocyanate resin comprising at least two functional groups Methods of forming adhesive compositions are provided. Applications of such adhesive compositions are provided.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
A tactile feedback device (TFD) drum brake has a drum rotor that creates at least two gaps and at least four shear surfaces. Magnetically responsive (MR) material is disposed within the gaps. The TFD drum brake further has an upper and lower magnetic seal to prevent the migration of the MR material from the gaps. The drum rotor is thin and rapidly saturates when a magnetic flux is generated. Controllable torque is created when the drum rotor is saturated. The controllable torque provides feedback to an operator of vehicle with the TFD drum brake installed.
F16D 57/06 - Liquid-resistance brakesAir-resistance brakes comprising a pump circulating fluid, braking being effected by throttling of the circulation
F16F 15/02 - 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
B62D 5/00 - Power-assisted or power-driven steering
F16D 57/02 - Liquid-resistance brakesAir-resistance brakes with blades or like members braked by the fluid
Provided are adhesives containing a phenoxy resin grafted with methyl methacrylate (MMA) and/or methacrylic acid (MAA), and including a uretdione or a silane. The adhesive compositions are completely or substantially absent free isocyanate. The grafted phenoxy resin forms crosslinking which allows the adhesive to chemisorb to a metal surface, diffuse and entangle in a urethane elastomer and/or provide crossbridging and/or crosslinking across an interface of the adhesive and a cast urethane. Methods of adhering a castable urethane to a substrate, using the provided adhesives, are also provided.
C09J 151/08 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsAdhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
A composition comprising a reactive organic matrix and majority amount of large conductive particles referred to as the primary filler and a minority amount of significantly smaller conductive particles, referred to as the secondary filler. The primary filler and secondary filler are dispersed in a reactive organic matrix and the secondary filler comprises particles with anti-settling characteristics to prevent the primary filler particles from settling without compromising the overall conductivity of the composition.
A diverter flowline seal has segments joined serially together to form the diverter flowline seal, which is shaped as a substantially continuous and uninterrupted path around the diverter. Each segment includes an elastomeric element that seals against the elastomeric element of circumferentially adjacent segments and/or radially adjacent rigid structures, such as a borehole, housing, or other surface(s) to which the diverter flowline seal is suitable for containing pressure, when the segments are assembled together to form the diverter flowline seal. First and/or second carrier components, which can be metallic, are arranged on the top and bottom surfaces, respectively, of the elastomeric elements of each of the segments to provide structural rigidity to the segments and to the diverter flowline seal when assembled.
In a multi-stage torsional coupling and associated methods of providing variable stiffness, the coupling has an inner member connected to a first torsional connection, a sprocket plate connected to the inner member, one or more plates connected to a second torsional connection, an outer member rigidly attached to the one or more plates, and a plurality of damping stages arranged for sequential engagement by movement of the sprocket plate relative to the one or more plates to provide a variable stiffness over a range of angular displacement for the multi-stage torsional coupling. The sprocket plate is rotatable relative to the one or more plates to sequentially engage the plurality of damping stages to provide stiffness between the first and second torsional connections that increases in a non-linear, or stepped, manner as the amplitude of the angular displacement of the sprocket plate relative to the one or more plates increases.
F16F 3/04 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
F16F 7/06 - Vibration-dampersShock-absorbers with relatively-rotatable friction surfaces that are pressed together in a direction perpendicular or inclined to the axis of rotation
Systems and methods for measuring torque on a drive train component of a rotating drive system are disclosed. In some aspects, a system includes a target assembly, a sensor assembly, and a sensor processing unit. The sensor assembly is located proximate to the target assembly, and the sensor assembly includes sensors mounted radially around the shaft and configured to detect sensor targets as the target assembly rotates with the drive train component. The sensor processing unit is configured for receiving sensor signals from the sensor assembly and outputting a torque signal based on the sensor signals. The sensor processing unit is configured for receiving target calibration data for the target assembly and sensor calibration data for the sensor assembly. The sensor processing unit is configured for verifying that the target calibration data corresponds to the target assembly and that the sensor calibration data corresponds to the sensor assembly.
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
A curable composition including a reactive monomer or oligomer with acrylate functionality, an amine, and an alkyl peroxide. The alkyl peroxide is free or substantially free of phenyl rings. The alkyl peroxide can be dilauroyl peroxide (DLP). The curable composition can also include 3,5-diethyl-1,2-dihyrdro-1-phenyl-2-propylpyridine (PDHP). The curable composition can be provided as a two-part adhesive composition, including an A-side with DLP and an acrylic monomer, and a B-side with PDHP.
A steer-by-wire device for controlling a vehicle includes a housing; an input shaft that is rotatable relative to the housing and is configured to receive a rotary input from an operator of the vehicle at a first end of the input shaft, the first end being located external to the housing; a rotor attached to the input shaft at a second, opposite, end of the input shaft, the second end being located internal to the housing; a sensor for detecting an angular position, an angular velocity, and/or an angular acceleration of the input shaft relative to the housing; and a coil for generating a magnetic field to generate a rotary force or torque in the rotor to resist rotation of the rotor. The rotor is attached to the input shaft to allow a relative movement between at least a portion of the rotor and the input shaft.
The present subject matter relates to devices, systems, and methods for identifying the position of a movable component. A position sensor system is provided in which a Hall effect sensor is coupled to a fixed housing, and a plurality of magnets is coupled to a movable component that is movable to a sensing position at which the plurality of magnets is proximal to the Hall effect sensor. In this configuration, the plurality of magnets is arranged to produce an aggregate magnetic field having a flux concentration directed toward the Hall effect sensor when the plurality of magnets is in the sensing position.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
53.
COMPLIANT SHAFT-ROTOR COUPLING FOR IMPROVED END STOP EXIT
A steer-by-wire device for controlling a vehicle includes a housing; an input shaft that is rotatable relative to the housing and is configured to receive a rotary input from an operator of the vehicle at a first end of the input shaft, the first end being located external to the housing; a rotor attached to the input shaft at a second, opposite, end of the input shaft, the second end being located internal to the housing; a sensor for detecting an angular position, an angular velocity, and/or an angular acceleration of the input shaft relative to the housing; and a coil for generating a magnetic field to generate a rotary force or torque in the rotor to resist rotation of the rotor. The rotor is attached to the input shaft to allow a relative movement between at least a portion of the rotor and the input shaft.
The present subject matter relates to devices, systems, and methods for identifying the position of a movable component. A position sensor system is provided in which a Hall effect sensor is coupled to a fixed housing, and a plurality of magnets is coupled to a movable component that is movable to a sensing position at which the plurality of magnets is proximal to the Hall effect sensor. In this configuration, the plurality of magnets is arranged to produce an aggregate magnetic field having a flux concentration directed toward the Hall effect sensor when the plurality of magnets is in the sensing position.
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
A magnetorheological fluid is provided having a reduced coefficient of friction and favorable settling characteristics. The fluid contains magnetically responsive particles, a carrier fluid, and an amine oleate salt.
C10M 171/00 - Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well defined but for which the chemical nature is either unspecified or only very vaguely indicated
C10M 107/02 - Hydrocarbon polymersHydrocarbon polymers modified by oxidation
C10M 111/04 - Lubricating compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being a macromolecular organic compound
C10M 125/22 - Compounds containing sulfur, selenium or tellurium
C10M 137/00 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
C10M 139/06 - Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups having a metal-to-carbon bond
C10M 141/12 - Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups , each of these compounds being essential at least one of them being an organic compound containing atoms of elements not provided for in groups
C10M 169/04 - Mixtures of base-materials and additives
H01F 1/44 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
C10N 30/00 - Specified physical or chemical property which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
A system for attaching an aft portion of an aircraft engine to an aircraft structure includes a base mount, a linkage arm that is arranged between opposing inner surfaces of the base mount and moveably attached to the base mount at least at one attachment point, a first alignment ring arranged between a first external surface of the linkage arm and a first inner surface of the opposing inner surfaces of the base mount, and a second alignment ring arranged between a second external surface of the linkage arm and a second inner surface of the opposing inner surfaces of the base mount. Such systems have first and second alignment rings that are made from an ultra-high temperature elastomeric material capable of operating at sustained temperatures of at least 500 °F (260 °C).
A UV curable dielectric coating is described. The curable coating can include one of more acrylate monomers, a urethane prepolymer, a crosslinker, at least one adhesion promoter, a photoinitiator, and optionally one or more fillers and/or additives. The coating can be used to insulate battery cells and battery packs, such as those used in electric vehicles. The coatings can be easily applied and quickly cured. The cured coatings can have high adhesion strength, even after exposure to wet conditions.
H01M 50/14 - Primary casingsJackets or wrappings for protecting against damage caused by external factors
H01M 50/197 - Sealing members characterised by the material having a layered structure
H01M 50/198 - Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
H01M 50/231 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the material of the casings or racks having a layered structure
H01M 50/233 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions
H01M 50/26 - Assemblies sealed to each other in a non-detachable manner
H01M 50/293 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 50/122 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/162 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/171 - Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
H01M 50/195 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/229 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/526 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the material having a layered structure
A curable intumescent fire retardant (IFR) coating composition containing a fluoropolymer, a curative, and a flame-retardant (FR) additive is described. The FR additive can be free of halogen-containing materials and can contain combinations of FR additives, including expandable graphite. The coating composition can be aqueous-based, free of volatile organic chemicals (VOCs), and be used to form thermally protective coating films on various substrates, such as aluminum and other metal substates.
C09D 127/12 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCoating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
A tension-torsion strap includes a first spindle and a second spindle, which are spaced apart from each other, such that the first and second spindles are positioned at opposite ends of the tension-torsion strap, a winding formed of a filament wrapped about the first and second spindles a plurality of turns, the winding extending between and connecting the first and second spindles and being positioned within a cavity formed circumferentially about each of the first and second spindles, and a protective layer covering the winding, which is formed according to an arched winding pattern, a portion of the winding extending outside boundaries of the cavity defined by the inner wall and the lateral walls, such that an outer surface of the winding has an arched, or curved, profile.
Torque sensing devices, systems, and methods are capable of measuring and/or determining a torque being transmitted through a shaft by measuring the torsional deformation of the shaft over a short length thereof. Such devices, systems, and devices have a sensor positioned adjacent to the outer surface of the shaft as it rotates, the sensor being positioned to maintain a substantially constant distance between the sensor and the outer surface of the shaft. The sensors may be variable reluctance (VR) sensors rigidly attached to a frame mounted on a bearing (e.g., a hanger bearing), which is mounted on the shaft, such that relative radial motion between the shaft and the VR sensor is minimized (e.g., so that they move in unison). Reducing this amount of motion results in a more accurate torque measurement.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
61.
Wide bandwidth circular force generator devices, systems, and methods
Circular force generator devices (100), systems, and methods for damping vibrations which include two complementary rotor assemblies (110, 120) that are rotatable together about a common shaft (102) but that have an adjustable rotational position (P1, P2) with respect to one another such that a significant reduction in rotor inertia and bearing drag relative to conventional CFG configurations is provided. The present architecture creates virtually zero rotating moment.
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
An active vibration control system (AVCS) and method for reducing motion and/or vibration of a seat frame within an aircraft includes vibration sensors, a controller, and force generators. In some embodiments, the vibration sensors and/or the force generators are attached to the seat frames. In other embodiments, the vibration sensors and/or the force generators are attached to aircraft structures, proximate to the seat frame. By monitoring the motion and/or vibration of the seat frame, the controller calculates a cancelling force to be generated by the force generators to reduce the vibration experienced by the seat frame and its occupant. Such seat frame vibration control can be implemented as a separate AVCS in an aircraft, or can be integrated in an existing AVCS that is also configured to provide vibration control in other parts thereof.
Methods and systems for adhesively bonding a first substrate to a second substrate to reduce pull-off stress during separation of the first and second substrates include applying a first adhesive to a first bonding region of a bonding area of the first substrate, applying a second adhesive, which has an adhesive strength that is lower than an adhesive strength of the first adhesive, to a second bonding region of the bonding area of the first substrate, pressing the first and second substrates against each other to form an adhesive bondline, and curing the first and second adhesives for a predetermined period of time to form a cured adhesive bondline between the first and second substrates.
A one-part adhesive including a grafted phenoxy resin, a polymaleimide compound, an organic carbonate, and an optional silane adhesion promoter is described. More particularly, the grafted phenoxy resin includes carboxylic acid and acrylate ester functionality. Methods of using adhesives to bond a thermoplastic urethane to a rigid substrate, e.g., in an injection or compression molding process, are also described.
C09J 163/00 - Adhesives based on epoxy resinsAdhesives based on derivatives of epoxy resins
C09J 171/00 - Adhesives based on polyethers obtained by reactions forming an ether link in the main chainAdhesives based on derivatives of such polymers
65.
SINGLE PLANE POWERTRAIN SENSING USING VARIABLE RELUCTANCE SENSORS
Systems and methods for measuring twist on a shaft of a rotating drive system include a first set of targets circumferentially distributed around the shaft at a first axial location to rotate with the shaft and a second set of targets circumferentially distributed around the shaft at a second axial location to rotate with the shaft. The first and second sets of targets are interleaved. The system includes a sensor assembly including one or more sensors mounted around the shaft and configured to detect the first and second sets of targets as the shaft rotates. The system includes a sensor processing unit for receiving an electrical waveform from the sensor assembly, determining, based on the electrical waveform, a twist measurement of twist motion between the first axial location and the second axial location on the shaft, and determining, based on the electrical waveform, a second measurement of shaft motion.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
66.
ROTATING MACHINE COMPONENT CLEARANCE SENSING SYSTEMS AND METHODS
In some aspects, a system includes In some aspects, a system includes a sensor unit oriented to detect the rotating machine component as the rotating machine component rotates past the sensor unit, the sensor unit including at least a first sensing element and a second sensing element spaced apart from the first sensing element. The system includes a sensor processing unit in electrical communication with the sensor unit. The sensor processing unit is configured for receiving a first waveform from the first sensing element; receiving a second waveform from the second sensing element; and determining, based on a comparison between the first waveform and the second waveform, a distance between the blade tip and the sensor unit.
G01B 7/14 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
67.
ROTATABLE SHAFT BEARING WITH ELECTROMAGNETICALLY CONTROLLED SUPPORT IMPEDANCE
A system for controlling shaft displacement within a support structure, the system having a rotatable shaft, at least one bearing supporting the shaft, the at least one bearing having an inner race rotatable along with the shaft and an outer race circumferentially surrounding the inner race, an electromagnet assembly positioned about the shaft along a longitudinal axis thereof, and a controller that detects a radial motion of the shaft and determines a corrective force to reduce the radial motion of, or a parameter related to, the shaft, the controller commanding the electromagnet assembly to generate the corrective force to act on the shaft, the electromagnet assembly having a plurality of phases spaced circumferentially about the shaft, the controller commanding different phases of the electromagnet assembly to generate the corrective force so that a vector of the corrective force rotates about the longitudinal axis of the shaft.
Systems, devices, and methods for active vibration control using circular force generators. In one aspect, a vehicle includes a vehicle frame, a cabin, an engine, and a number of vibration control devices mounted on the vehicle frame. Each vibration device includes a circular force generator comprising at least one mass and at least one motor configured to rotate the mass. The vibration control devices are configured to perform active vibration control to reduce noise and/or vibration within the cabin resulting from the engine deactivating a subset of cylinders in operation.
A torsional coupling including parts that all work together. Torque is applied to the inner member. The first stage (low torque) consists of a bonded part (rubber, inner and outer member) that is in series with a set of compression style coil springs. The torsional stiffness of the bonded part is approximately 25% of the resulting torsion stiffness provided by the coil springs. The second stage (high torque) the tangs on the inner member engage with a sprocket plate which locks out the first stage and transfers all torque through the coil springs. The coil springs are held in place by a unique geometry on the sprocket plate and the spring holders. The spring holders also prevent metal to metal contact between the coil springs and the upper and lower housing portions. Surface effect damping occurs at very high torques when the rubber molded around the tangs on the inner member rub on the bumps on the lower housing portion. A thrust bearing is used to react axial forces and to eliminate any metal to metal contact.
F16F 15/126 - Plastics springs, e.g. made of rubber consisting of at least one annular element surrounding the axis of rotation
F16F 15/127 - Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs using plastics springs combined with other types of springs
70.
Methods and systems for measuring parameters of rotating shafts and couplings
Systems and methods for measuring displacement parameters of rotating shafts and couplings are disclosed. In some aspects, a measurement system includes a shaft extended in a longitudinal direction and a target wheel configured to rotate with the shaft. The target wheel includes sensor targets circumferentially distributed around the target wheel. Some of the targets are slanted in the longitudinal direction and some of the targets are parallel to the longitudinal direction. The measurement system includes a sensor array including at least three sensors mounted radially around the shaft and configured to detect the sensor targets as the target wheel rotates with the shaft. The measurement system includes a controller configured to receive sensor signals from the sensors and determine, based on the sensor signals, at least an axial displacement measurement of the shaft in the longitudinal direction and a radial displacement measurement of the shaft.
G01L 3/00 - Measuring torque, work, mechanical power, or mechanical efficiency, in general
G01L 3/08 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving optical means for indicating
G01B 7/312 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapersMeasuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 11/27 - 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 for testing the alignment of axes
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
G01D 5/347 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
71.
Engine mount system and elements for reduced force transmission and reduced static motion and associated methods
Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.
B64D 27/26 - Aircraft characterised by construction of power-plant mounting
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
A lateral isolator (200) has a tubular body with an upstream end and a downstream end. The lateral isolator (200) also includes an inner member (210) having a pivot ring (220) disposed within the tubular body. A first elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the upstream end. A second elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the downstream end.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
A lateral isolator (200) has a tubular body with an upstream end and a downstream end. The lateral isolator (200) also includes an inner member (210) having a pivot ring (220) disposed within the tubular body. A first elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the upstream end. A second elastomeric package (236) is disposed between the tubular body and the inner member (210) longitudinally between the pivot ring (220) and the downstream end.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
74.
MOLDABLE SILICONE ELASTOMERS HAVING SELECTIVE PRIMERLESS ADHESION
A composition for use in modifying the adhesion properties of silicone rubber compositions is described. The composition comprises alkoxy silanes, such as alkoxy silanes further comprising additional chemical functional groups such as epoxides, esters, and anhydrides; diffusion promoters that are completely or partially immiscible in the silicone rubber composition being modified; and compounds that can balance the hydride content of the silicone rubber compositions being modified. Modified curable silicone rubber compositions and methods of modifying the adhesive properties of silicone rubber compositions are also described. In particular, use of the presently disclosed compositions can provide modified silicone rubber compositions having selective adhesion for surfaces comprising thermoplastic and thermoset polymers as compared to metal surfaces.
Dual action magnetic brakes and related methods are provided. In one aspect, such a brake includes a housing, a rotatable shaft extending through the housing, and a braking assembly in the housing. The braking assembly includes a coil and a braking member. The coil can generate a magnetic field when energized with electrical current. The braking member, and one or more flexible members attached thereto, can move in response to the presence or absence of the magnetic field to facilitate rotation or non-rotation of the shaft.
F16D 49/10 - Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like shaped as an encircling band extending over approximately 360° mechanically actuated
F16D 65/06 - Bands, shoes or padsPivots or supporting members therefor for externally-engaging brakes
F16D 65/08 - Bands, shoes or padsPivots or supporting members therefor for internally-engaging brakes
F16D 13/12 - Friction clutches with an expansible band or coil co-operating with the inner surface of a drum or the like
F16D 13/14 - Friction clutches with outwardly-movable clutching members co-operating with the inner surface of a drum or the like
F16D 121/20 - Electric or magnetic using electromagnets
A system has a fin with an upstream end, a downstream end, a wall interface (412), a carrier interface (414) offset from the wall interface (412) in a radially inward direction, and an impact surface (418). The impact surface extends between an upstream end of the wall interface and an upstream end of the carrier interface. The impact surface (418) has a substantially flat portion configured to cause flow stagnation. The fin (306) has a side surface (416) extending between the impact surface (418), the wall interface (412), and the carrier interface. The impact surface (418) is joined to the side surface (416) by an edge profile (420) configured to cause turbulence or separation of the fluid flow from the fin.
A system has a fin with an upstream end, a downstream end, a wall interface (412), a carrier interface (414) offset from the wall interface (412) in a radially inward direction, and an impact surface (418). The impact surface extends between an upstream end of the wall interface and an upstream end of the carrier interface. The impact surface (418) has a substantially flat portion configured to cause flow stagnation. The fin (306) has a side surface (416) extending between the impact surface (418), the wall interface (412), and the carrier interface. The impact surface (418) is joined to the side surface (416) by an edge profile (420) configured to cause turbulence or separation of the fluid flow from the fin.
Electrical grounding devices, systems, and methods of manufacture and use thereof are advantageously implemented in providing electrical grounding between electrically conductive elements between when it is desired to maintain a continuous and uninterrupted gap during normal operation. One example embodiment for the implementation of such electrical grounding devices, systems, and methods of manufacture and use is in a railcar wheel assembly. Such systems can include inner and outer wheel portions arranged concentrically about each other, with rubber blocks having one or more grounding shunts passing through a thickness thereof being arranged between the inner and outer wheel portions in a compression-fit manner, the grounding shunts being in electrical contact with each of both of the inner and outer wheel portions to conduct an electrical current therebetween.
Systems and method for active vibration control on an aircraft. An active vibration control system (AVCS) is configured for an aircraft having an aircraft structure and a gun. The AVCS includes at least one control sensor on the aircraft, at least one force generator on the aircraft, and at least one controller in electronic communication with the sensor and the force generator. The controller is configured for determining, using the at least one control sensor, force generating commands for controlling vibrations acting on the aircraft structure, sending the force generating commands to the at least one force generator, causing the at least one force generator to produce a vibration canceling force, determining that the gun is firing, and in response to determining that the gun is firing, determining different force generating commands and sending the different force generating commands to the at least one force generator.
Actuators are components of machines, which move and/or control a mechanism or system. During operation, actuators can experience regeneration events, with the actuator actually generating excess energy (e.g., regenerative energy) which must be stored or dissipated to avoid damaging the power supply. An actuator motor controller is configured to implement field oriented voltage control and flux weakening voltage control without current sensors. Dissipating regenerative energy includes providing a motor controller to command a motor drive to modify an input voltage, or to dissipate regenerative energy in a dump circuit. This command can cause motor windings to dissipate regenerative energy. Systems having a plurality of actuators distribute regenerative energy from one actuator to another. A central controller provides centralized regeneration dissipation control for the plurality of actuators. A power distribution unit includes a dump resistor to dissipate regenerative energy in addition to or instead of in the actuators.
Provided are adhesives containing a phenoxy resin grafted with methyl methacrylate (MMA) and/or methacrylic acid (MAA), and including a uretdione or a silane. The adhesive compositions are completely or substantially absent free isocyanate. The grafted phenoxy resin forms crosslinking which allows the adhesive to chemisorb to a metal surface, difuse and entangle in a urethane elastomer and/or provide crossbridging and/or crosslinking across an interface of the adhesive and a cast urethane. Methods of adhering a castable urethane to a substrate, using the provided adhesives, are also provided.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08F 283/06 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals
C09J 171/08 - Polyethers derived from hydroxy compounds or from their metallic derivatives
C08G 18/71 - Monoisocyanates or monoisothiocyanates
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
82.
Flexure isolator and method of compliant isolation
An engine mount device includes a housing, a carrier within a cavity in the housing, and a flexure flexibly connecting the carrier to the housing, with a pin disposed in a hole in the carrier to support an engine. A method of providing isolation in the engine mount device includes transmitting a force from the pin into the carrier; mechanically isolating the carrier from the housing via the flexure; and providing, via the flexure, a higher stiffness in one or more radial directions of the hole compared to a stiffness provided in an axial direction of the hole.
F16F 1/40 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
F16F 1/42 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by the mode of stressing
F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
F02C 7/20 - Mounting or supporting of plantAccommodating heat expansion or creep
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
B64D 27/26 - Aircraft characterised by construction of power-plant mounting
83.
AUTOMOTIVE ACTIVE VIBRATION CONTROL USING CIRCULAR FORCE GENERATORS
A vehicle active vibration control (AVC) system includes a vehicle having at least an engine, a transmission, a controller area network (CAN) bus, a frame, and a cabin. The vibration control devices (120) are distributed about the frame, with each device including a circular force generator (CFG) (122). At least one sensor is positioned on the frame to detect and measure a noise and/or vibration within the cabin. Each sensor creates an electronic data signal and electrically communicates with a corresponding vibration control device. Each vibration control device receives an electronic data signal from a corresponding sensor and vehicle data from the CAN bus. Each vibration control device processes the electronic data signal and the vehicle data. The CFG of each vibration control device generates a vibration canceling force having a magnitude and phase that attenuates noise and/or vibration within the cabin.
A composition comprising a reactive organic matrix and majority amount of large conductive particles referred to as the primary filler and a minority amount of significantly smaller conductive particles, referred to as the secondary filler. The primary filler and secondary filler are dispersed in a reactive organic matrix and the secondary filler comprises particles with anti-settling characteristics to prevent the primary filler particles from settling without compromising the overall conductivity of the composition.
Systems and methods for measuring torque on a drive train component of a rotating drive system are disclosed. In some aspects, a system includes a target assembly, a sensor assembly, and a sensor processing unit. The sensor assembly is located proximate to the target assembly, and the sensor assembly includes sensors mounted radially around the shaft and configured to detect sensor targets as the target assembly rotates with the drive train component. The sensor processing unit is configured for receiving sensor signals from the sensor assembly and outputting a torque signal based on the sensor signals. The sensor processing unit is configured for receiving target calibration data for the target assembly and sensor calibration data for the sensor assembly. The sensor processing unit is configured for verifying that the target calibration data corresponds to the target assembly and that the sensor calibration data corresponds to the sensor assembly.
G01L 3/10 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
G01L 25/00 - Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
A curable adhesive that is particularly well suited for use in an injection or compression molding operation. The adhesive is based on polymeric resins having carboxylic acid and acrylate ester functionality, such as grafted phenoxy resin, and further constituents such as organic carbonates, blocked isocyanates, catalysts, maleimide compounds, hydride sources, and a carrier fluid. The curable adhesives are particularly well suited for bonding liquid injectable substrates such as liquid silicone rubber, or polyamides to rigid substrates, such as aluminum, stainless steel, or glass.
C09J 187/00 - Adhesives based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon-bonds
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 15/06 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of rubber
B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
C09J 5/00 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
B29K 667/00 - Use of polyesters for preformed parts, e.g. for inserts
An engine mount system having failsafe securement points. The engine mount system includes a forward mount carrying a coat hanger shackle having a spherical bearing and a cylindrical bearing. Securement of the engine mount to a support utilizes pins and bolts with a retaining double wrench washer incorporated into the final mounting structure. The engine mount system additionally includes an aft mount.
An active vibration control system (AVCS) and method for reducing motion and/or vibration of a seat frame within an aircraft includes vibration sensors, a controller, and force generators. In some embodiments, the vibration sensors and/or the force generators are attached to the seat frames. In other embodiments, the vibration sensors and/or the force generators are attached to aircraft structures, proximate to the seat frame. By monitoring the motion and/or vibration of the seat frame, the controller calculates a cancelling force to be generated by the force generators to reduce the vibration experienced by the seat frame and its occupant. Such seat frame vibration control can be implemented as a separate AVCS in an aircraft, or can be integrated in an existing AVCS that is also configured to provide vibration control in other parts thereof.
A riser tensioner bearing is provided. The riser tensioner bearing is an asymmetric bearing having an outer member comprising a cylindrical outer profile and an at least partially spherical interior profile, and an inner member comprising an at least partially spherical outer profile and a substantially cylindrical outer profile.
Circular force generator devices (100), systems, and methods for damping vibrations which include two complementary rotor assemblies (110, 120) that are rotatable together about a common shaft (102) but that have an adjustable rotational position (P1, P2) with respect to one another such that a significant reduction in rotor inertia and bearing drag relative to conventional CFG configurations is provided. The present architecture creates virtually zero rotating moment.
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
Systems, devices, and methods for active vibration control using circular force generators. In one aspect, a vehicle includes a vehicle frame, a cabin, an engine, and a number of vibration control devices mounted on the vehicle frame. Each vibration device includes a circular force generator comprising at least one mass and at least one motor configured to rotate the mass. The vibration control devices are configured to perform active vibration control to reduce noise and/or vibration within the cabin resulting from the engine deactivating a subset of cylinders in operation.
Systems, devices, and methods for active vibration control using circular force generators. In one aspect, a vehicle includes a vehicle frame, a cabin, an engine, and a number of vibration control devices mounted on the vehicle frame. Each vibration device includes a circular force generator comprising at least one mass and at least one motor configured to rotate the mass. The vibration control devices are configured to perform active vibration control to reduce noise and/or vibration within the cabin resulting from the engine deactivating a subset of cylinders in operation.
Circular force generator devices (100), systems, and methods for damping vibrations which include two complementary rotor assemblies (110, 120) that are rotatable together about a common shaft (102) but that have an adjustable rotational position (P1, P2) with respect to one another such that a significant reduction in rotor inertia and bearing drag relative to conventional CFG configurations is provided. The present architecture creates virtually zero rotating moment.
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
G05D 19/02 - Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase characterised by the use of electric means
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
94.
ENGINE MOUNT SYSTEM AND ELEMENTS FOR REDUCED FORCE TRANSMISSION AND REDUCED STATIC MOTION AND ASSOCIATED METHODS
Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
F02C 7/20 - Mounting or supporting of plantAccommodating heat expansion or creep
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
B64D 27/26 - Aircraft characterised by construction of power-plant mounting
95.
ENGINE MOUNT SYSTEM AND ELEMENTS FOR REDUCED FORCE TRANSMISSION AND REDUCED STATIC MOTION AND ASSOCIATED METHODS
Compliant mounting systems, devices, and methods for mounting a vehicle engine to a vehicle structure or base include a top mount, a lower mount, a center trunnion mount, and an aft mount which are configured to react forces transmitted by the engine to the vehicle structure. Metallic and elastomeric elements can provide vibrational and force isolation characteristics. Stops (e.g., snubbing elements) allow for a specific range of motion before internal mount structures contact each other to act as a conventional hard mount. Fluid elements and compressible gas-filled spaces/bladders may be incorporated to provide fluid damping behaviors to complement the metallic and elastomeric elements.
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
F02C 7/20 - Mounting or supporting of plantAccommodating heat expansion or creep
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
96.
Mechanical devices and method of creating prescribed vibration
The invention provides a system for creating a prescribed vibration profile on a mechanical device comprising a sensor for measuring an operating condition of the mechanical device, a circular force generator for creating a controllable rotating force vector comprising a controllable force magnitude, a controllable force phase and a controllable force frequency, a controller in electronic communication with said sensor and said circular force generator, the controller operably controlling the controllable rotating force vector, wherein the difference between the measured operating condition and a desired operating condition is minimized.
H02P 25/032 - Reciprocating, oscillating or vibrating motors
B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
97.
Magnetic seal for magnetically-responsive devices, systems, and methods
A magnetically-responsive device (100) having a magnetic seal (160,170) to retain magnetically responsive material within a defined space (150) is provided. The magnetically-responsive device (100) has a shaft (110), a rotor (130), a magnetic field generator (145), a magnetically-responsive medium and a magnetic seal (160,170). The seal (160,170) is preferably a non-contact seal (160,170) that does not deteriorate over time and generates little to no resistance.
A magnetically-responsive device (100) having a magnetic seal (160,170) to retain magnetically responsive material within a defined space (150) is provided. The magnetically-responsive device (100) has a shaft (110), a rotor (130), a magnetic field generator (145), a magnetically-responsive medium and a magnetic seal (160,170). The seal (160,170) is preferably a non-contact seal (160,170) that does not deteriorate over time and generates little to no resistance.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
Goods & Services
(1) Catalysts for use in the manufacture of industrial chemicals
(2) Protective and decorative coatings in the nature of paint for interior and exterior use; protective coatings for rust prevention and corrosion control; thinners; paint sealers for airplanes and space shuttles; paint sealers for arts and crafts; paint sealers for laminate and mortar floors; paint sealers for use with cabinetry and furniture finishing; paint sealers for use with automobiles; paint sealers for marine use; paint sealers for use with model aeroplanes; paint primers; acrylic primers; Surfacers for use filling rough surfaces to prepare for application of another product; Etchers to prepare bare metal surfaces for polyurethane coatings; Overlayments used as a touch up for overlaying current coating to make a uniform coating
(3) Paint strippers; Degreasing preparations for commercial and industrial use; Degreasing preparations for household use
100.
Isolator devices, systems and methods for aircraft
Aircraft isolator devices, systems, and methods for isolating a structural component within an aircraft can include an engine interface, airframe, and one or more (e.g., a plurality of) isolator devices attached to the engine interface and the airframe. In some aspects, the isolator devices have a housing, which has a first surface and a second surface that together at least partially define a perimeter of the housing and is configured for attachment to the airframe; an engine attachment component configured for attachment to the engine interface and disposed at least partially inside of the housing; and a plurality of elastomeric elements disposed on or over each of the first and second surfaces of the housing The plurality of elastomeric elements are spaced apart from the engine attachment component via the housing for improved heat dissipation from the engine, reducing operational temperatures of the elastomeric elements to prolong their use.
F16F 15/02 - 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
F02C 7/20 - Mounting or supporting of plantAccommodating heat expansion or creep
