Abstract

The invention relates to a diagnostic apparatus 1 for detecting delamination in the thickness of a panel of laminated composite. The diagnostic apparatus can be used to inspect a panel having a non-constant thickness along its length. The diagnostic apparatus comprises an ultrasonic probe 30 intended to be brought into contact with the front face of the panel to be inspected, an electronic device 40 for controlling the emission and reception of ultrasonic pulses 51 by the ultrasonic probe 30, and a display device 41 having, notably, indicators showing the presence or absence of delamination in the panel.

IPC Classes  ?

• G01N 29/24 - Probes
• G01N 29/44 - Processing the detected response signal
• G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves

Abstract

The invention relates to a process for rapid manufacturing of parts made of a metallic, intermetallic or ceramic material, made of a ceramic matrix composite or made of a metal matrix composite with discontinuous reinforcement, especially with ceramic or intermetallic reinforcement, by melting or sintering particles of powder(s) using a high-energy beam. Characteristically, the powder used is a single powder, the particles of which have a sphericity of between 0.8 and 1.0 and a shape factor of between 1 and √2, each powder particle having a substantially identical mean composition and the particle size distribution of the particles of said powder is narrowed about the mean diameter d50% value so that: (d90% - d50%) / d50% ≤ 0.66 and (d50% - d10%) / d50% ≤ 0.33 with a "span" (d90% - d10%) / d50 % ≤ 1.00. Application to the rapid manufacturing of parts by selective laser melting (SLM) or by selective laser sintering (SLS) or else by direct metal deposition (DMD). Such powders are adapted to the targeted process/material pair.

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B29C 67/00 - Shaping techniques not covered by groups , or
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22C 33/02 - Making ferrous alloys by powder metallurgy
• B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying

Abstract

The present invention relates to an electrical power supply device (25) for electric propulsion aircraft comprising a first and a second electric motor (20, 21) which are able to ensure the propulsion of the aircraft, a first and a second high-voltage electrical circuit (26, 27) connected respectively to the two electric motors (20, 21), a low-voltage electrical circuit (28) connected to at least one control and/or command facility (49) of the aircraft, a first and a second pack of batteries (31, 32) connected respectively to the two high-voltage electrical circuits (26, 27), a first and a second batteries management system (34, 35) connected to the low-voltage circuit (28), the batteries management systems being linked respectively to the two packs of batteries (31, 32), an electrical converter (37) connected on the one hand to the first high-voltage electrical circuit (26) and on the other hand to the low-voltage electrical circuit (28).

IPC Classes  ?

• B64D 27/24 - Aircraft characterised by the type or position of power plants using steam or spring force

Abstract

The invention relates to a mechanical assembly having improved behavior with respect to fatigue combined with wear due to micro-movements, wherein said assembly comprises at least two parts that are attached to one another. At least one of the at least two parts is made of a material comprising a titanium or titanium-alloy matrix and comprising titanium-carbide or titanium-boride ceramic particles which are substantially homogeneously dispersed within the matrix, wherein the particles have a minimum size of at least 0.05 μm and a maximum size not exceeding 30 μm in the area subjected to the effects of fatigue-fretting. The mass proportion of the ceramic particles in the part is preferably of 5 to 40%.

IPC Classes  ?

• C22C 32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ

Abstract

A diffractive device for fitting to a façade of a building, or to any other reflective wall, exposed to electromagnetic radiation emitted by a source located at a distance from the building, the device including a plurality of tubular resonant elements arranged on the façade of the building, where the resonant elements are arranged in a substantially parallel manner on the façade of the building in such a way as to form a diffraction grating and are oriented in a substantially perpendicular direction to the plane defined by the propagation vectors of the incident and reflected electromagnetic waves, each resonant element being configured to form an LC resonator capable of re-radiating a wave corresponding to the incident wave affected by a phase shift; the set of resonant elements being arranged in such a way that the incident wave is diffracted in a preferential direction.

IPC Classes  ?

• H01Q 15/02 - Refracting or diffracting devices, e.g. lens, prism
• G02B 5/18 - Diffracting gratings
• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H01Q 15/14 - Reflecting surfacesEquivalent structures
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• E04F 13/08 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of a plurality of similar covering or lining elements

Abstract

The invention concerns a device for testing a stiffener of an aircraft structure made from composite materials, comprising: - at least one ultrasound sensor (21) capable of providing measurements relative to a material health state of the stiffener, - a protective enclosure (20) for the ultrasound sensor, in which said ultrasound sensor is housed, - a mobile gantry (10) capable of moving along the stiffener (R) and inside which is mounted the protective enclosure with the ultrasound sensor, - drive means (30) capable of driving the gantry (10) along the stiffener, - clamping means (40) rigidly connected to the protective enclosure and capable of holding the ultrasound sensor (21) pressed against the surface of the stiffener (R) that is to be controlled, - locating means for synchronising each area of the surface of the stiffener with the measurement of the ultrasound sensor.

IPC Classes  ?

• G01N 29/04 - Analysing solids
• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
• G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material

Abstract

The invention concerns a device for absorbing kinetic energy for an aircraft structural element that may undergo a dynamic impact, this device comprising: - an outer enclosure (21) made from a braided composite material capable of preserving its integrity after an impact, - a foam core (22), contained in the outer enclosure and capable of at least partially filling said outer enclosure (21), said foam core (22) being capable of at least partially absorbing the kinetic energy generated by the impact, and - reinforcing elements (30) integrated at least partially into the foam core in order to dissipate, combined with the form core (22), the kinetic energy generated by the impact; - the reinforcing elements (30) comprising discontinuous threads (32) inserted into the foam core (22) by stitching, and - the discontinuous threads (32) each include an L- or T-shaped head (33), folded down outside the outer enclosure (21).

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons
• B64C 3/20 - Integral or sandwich constructions
• B64C 11/26 - Fabricated blades
• F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion

Abstract

The invention concerns a device for absorbing kinetic energy for an aircraft structural element that may undergo a dynamic impact, comprising: - an outer enclosure (21) made from a braided composite material capable of preserving its integrity after an impact, - a foam core (22), contained in the outer enclosure and capable of at least partially filling said outer enclosure, said foam core being capable of at least partially absorbing the kinetic energy generated by the impact, and - reinforcing elements including at least one dry composite fibre preform (30) integrated into the foam core to dissipate, combined with the foam core, the kinetic energy generated by the impact. The invention also relates to a method for integrating said device for absorbing kinetic energy.

IPC Classes  ?

• B64C 11/20 - Constructional features
• B64C 27/00 - RotorcraftRotors peculiar thereto
• B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
• F41H 5/04 - Plate construction composed of more than one layer

Abstract

The invention essentially concerns a method for analysing geographical regions and detecting areas of interest by means of a scanning means comprising a sensor and a digital data processing centre, characterised in that it comprises a first phase (100) of learning the intrinsic appearance of each geographical region, in which a database of knowledge comprising groups of digital data is created, followed by a second phase of detecting areas of interest in the geographical regions, said phases (100) comprising the steps consisting of: a. acquiring (101), by means of the sensor, a piece of digital data corresponding to a geographical region, b. transmitting (102) the digital data acquired in step a) to the digital data processing centre; c. processing (103) the digital data transmitted in step b) by means of the digital data processing centre.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G06K 9/03 - Detection or correction of errors, e.g. by rescanning the pattern

Abstract

The invention concerns a method for automatically calibrating a checking system using different types of ultrasound sensors (21, 41), for checking the structure of a composite material part (11) during production. According to the invention, the method is implemented using so-called reference sensors (22, 42) which are mounted on reference shims (23, 43) and placed in the region in which the part in question is being produced. The automatic calibration consists in activating a reference sensor (22, 42) such that it emits an ultrasound wave, and in measuring the amplitude of the so-called reference echo (24, 44), formed by the ultrasound wave emitted, when it has passed through the reference shim (23, 43) on which it is mounted. This amplitude is compared with a set value and the gain g' applied to the sensor (22, 42) is acted upon in order to obtain a reference echo amplitude value which is substantially equal to that value. Finally, the gain applied to the reference sensor (22, 42) is applied to the checking system sensors (21, 41) of the same type as this sensor. The operation is performed for each reference sensor, successively for all the production stages of the part.

IPC Classes  ?

• G01N 29/11 - Analysing solids by measuring attenuation of acoustic waves
• G01N 29/30 - Arrangements for calibrating or comparing, e.g. with standard objects
• G01N 29/44 - Processing the detected response signal

Abstract

The subject of the invention is a system for recharging the batteries (6) carried on board an electrically powered aircraft (10), characterized in that it comprises a charging aircraft (1), means (2, 3a, 3b, 4) of temporarily electrically connecting the charging aircraft to the electrically powered aircraft and a charge-regulating device (5) in the electrically powered aircraft.

IPC Classes  ?

• B64C 39/02 - Aircraft not otherwise provided for characterised by special use
• B64D 27/24 - Aircraft characterised by the type or position of power plants using steam or spring force
• B64D 39/00 - Refuelling during flight
• H01R 13/62 - Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
• H01R 24/38 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts

Abstract

The invention relates essentially to a method for evaluating the metrological performance of a measurement by correlation of digital images, of a kinematic field of a structure subjected to mechanical and/or thermal loadings, characterized in that it comprises the steps consisting in: a) recording (200) a digital reference image of the surface of the structure by means of a device for acquiring digital images, b) recording (201) a digital image, comprising a determined optical modification, of the surface of the structure by means of the device for acquiring digital images, c) calculating (206) the field of displacement of the points of the surface of the structure, measured by the device for acquiring digital images (100), d) evaluating (207, 208) the accuracy of the measurement of the field of displacement of the points of the surface of the structure by the device for acquiring digital images.

IPC Classes  ?

• G06T 7/20 - Analysis of motion

Abstract

An electromechanical machine (100), comprising at least one coil made of a material that becomes electrically superconducting when its temperature is below a critical temperature Te, comprises a functional part (10) contained within an interior volume (22) of a thermally insulated and fluidtight enclosure (21), a wall (23) of this insulated enclosure being crossed in fluidtight manner by at least one shaft (111) for transmitting mechanical power between the functional part (10) situated in the interior volume (22) and a space outside the insulated enclosure. The functional part (10) is thus used as a precooled heat sink to maintain within the insulated enclosure (21) the temperature conditions required for maintaining superconductivity.

IPC Classes  ?

• H02K 55/00 - Dynamo-electric machines having windings operating at cryogenic temperatures

Abstract

The invention concerns an ultrasound device for checking the quality of a composite material structure (11) during the production cycle. The device is intended to be incorporated in production tooling, of the type enabling the LRI process to be performed, in which the composite material structure is placed between two moulds during the production cycle. To that end, it comprises a layer of piezoelectric material (22) deposited on the face of one (13) of the moulds, opposite the face which is in contact with the structure (1), and a film (21) of flexible material which is electrically insulating and one face of which is placed against the outer face of the layer (22). This face of the film further comprises conductive pads (31) which are thus placed in contact with the piezoelectric material, it being possible for each pad to be energized by electric voltage applied by means of a conductive strip (32). Each pad (31) forms an independent ultrasonic transducer with the region of the layer (22) opposite which it is placed.

IPC Classes  ?

• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
• B29C 45/76 - Measuring, controlling or regulating

Abstract

The invention relates to a propellant device (100) for exerting a propelling force on a vehicle, which generates momentum by means of a piston (20, 20') having a non-zero mass, the acceleration of which is provided by a force taking effect on a structure of the vehicle and the braking of which is carried out separately in said propellant device, without applying any force to the vehicle. In one embodiment, a piston (20, 20') moves in a cross-shaped cavity (10, 10') in which said piston is moved from a reference position to an end of a cylindrical portion of the cavity where said piston is stopped by a gas that same compresses adiabatically and the cross is rotated one quarter turn before the piston is released in order to return to the reference position. In another embodiment, the propellant device comprises two cross-shaped cavities rotating in opposite directions.

IPC Classes  ?

• F03G 3/00 - Other motors, e.g. gravity or inertia motors

Abstract

The present invention relates to a communication method enabling the interaction of at least two virtual machines (10, 11) hosted by heterogeneous virtualization solutions, characterized in that same comprises the following steps: encapsulating network streams (30, 31) from interfaces (20, 21) of said virtual machines (10, 11); redirecting said network streams (30, 31) on a physical device (40) comprising at least one processor (41) and one memory (42); decapsulating said network streams (30, 31) by said physical device (40); and establishing by means of said physical device (40) a link between said network streams (30, 31). The present invention likewise relates to a communication system (60) enabling the interaction of at least two virtual machines (10, 11) hosted by heterogeneous virtualization systems.

IPC Classes  ?

• H04L 12/46 - Interconnection of networks
• G06F 12/00 - Accessing, addressing or allocating within memory systems or architectures
• G06F 9/44 - Arrangements for executing specific programs
• H04L 12/713 - Route fault prevention or recovery, e.g. rerouting, route redundancy, virtual router redundancy protocol [VRRP] or hot standby router protocol [HSRP] using node redundancy, e.g. VRRP
• H04L 12/715 - Hierarchical routing, e.g. clustered networks or inter-domain routing

Abstract

The invention relates to an ultrasound probe for contact measurement of an object and its manufacturing process. According to the invention, this ultrasound probe comprises ultrasound sensors securely fastened to a first face (12) of a substrate (10), the opposite face (11) of said substrate (10) defining a measurement surface, said measurement surface having a shape that is the imprint of the surface of the object to be measured so as to closely follow the latter when the surface of the object is brought into contact with said measurement surface.

IPC Classes  ?

• G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details providing acoustic coupling

Abstract

A drill bit (101) comprises an interior canal for the passage of liquid nitrogen which passes longitudinally through the body (10) of the drill bit, said canal comprising, on the side of a cutting edge (13) of the drill bit, at least one liquid nitrogen ejection duct that opens near the cutting edge which is formed by an insert (30) made with polycrystalline diamond fixed to the body (10) of the drill bit. A device (100) for drilling a metal - composite stack comprises such a drill bit (101), a liquid nitrogen production unit (102) and a distribution network (103) for distributing the liquid nitrogen. In order to drill through a metal-composite stack using the device (100) the drilling is performed in a single pass of the drill bit (101), the liquid nitrogen at cryogenic temperature being conveyed close to the cutting edge (13) at least while the cutting edge (13) is in contact with the metallic material.

IPC Classes  ?

• B23B 35/00 - Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machinesUse of auxiliary equipment in connection with such methods
• B23B 51/04 - Tools for drilling machines for trepanning
• B23Q 11/10 - Arrangements for cooling or lubricating tools or work

Abstract

The invention relates to a device (10) for infusing a resin into a fibrous preform (12), said device (10) including a mold comprising a sealed cavity (9) capable of receiving the fibrous preform (12) and comprising a liquid resin intake (19), and a shaping metal sheet (13) arranged inside the cavity (9), in contact with the fibrous preform (12), said device (10) including a measurement means (30), which comprises a transmitter and a receiver capable of transmitting and receiving an ultrasonic signal via a section (S1) of said fibrous preform (12), the reception of said signal being carried out via the shaping metal sheet (13).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising

Abstract

The invention relates to a high-impedance passive surface (11) making it possible to carry out the radio decoupling of two antennas (17, 18) which operate at least partially within a common frequency band and which are arranged on the surface (19) of a supporting structure. Said device is characterized in that it comprises a substrate (15) consisting of a layer of a flexible dielectric material having a given thickness e, at the surface of which patches (13) of conductive material, having a given shape and arrangement, are arranged, as well as a means (16) for ensuring the attachment thereof onto a floorplan at the surface (19) of the structure such that the layer consisting of the patches (13) is separated from the surface (19) of the structure by the body of the substrate. The substrate thickness e is determined on the basis of the size, number, and arrangement of the patches (13), as well as on the basis of the aerodynamic constraints imposed on the device, the latter having an impedance causing the desired decoupling in the frequency band in question.

IPC Classes  ?

• H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons
• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H01Q 15/00 - Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices

Abstract

The invention relates to a diagnostic apparatus 1 for detecting delamination in the thickness of a laminated composite panel. The diagnostic apparatus allows inspection of a panel having a non-constant thickness along its length. The diagnostic apparatus comprises an ultrasound probe 30 intended to be placed in contact with the front face of the panel to be inspected, an electronic device 40 for controlling the emission and the reception of ultrasound pulses 51 by the ultrasound probe 30, as well as a visualization device 41 furnished in particular with telltales as to the presence or otherwise of delamination in the panel.

IPC Classes  ?

• G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves
• G01N 29/44 - Processing the detected response signal

Abstract

A structural part dissipates energy delivered during an impact that compresses the part along an axis Z, including a web having two opposite surfaces. The part includes: a through-window extending between the opposite surfaces of the web, dividing the web into a first portion and a second portion respectively, arranged in series along the Z axis; and an energy-dissipation device, including a cutting element arranged within the window and able to cut at least one of the portions of the web into strips as a result of a compressive force exerted on the part along the Z axis, and an element for clearing away the strips thus formed.

IPC Classes  ?

• F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
• B64C 1/06 - FramesStringersLongerons

Abstract

The invention relates to a system for monitoring the quality of a structural component (1) of an aircraft, comprising: - a device for monitoring an internal structure (10) of the structural component (1) by ultrasound measurement, - a device for monitoring an exterior aspect (20) of a surface of the structural component (1) by optical measurement, - a robotized support (4), supporting both the device for monitoring an internal structure and the device for monitoring an exterior aspect, which is able to scan successively each zone (z1, z2, zn) of the surface of the structural component (1) so as to simultaneously monitor a state of the internal structure and an aspect of the exterior surface of the structural component, and - a device (3) for processing ultrasound data transmitted by the device for monitoring an internal structure (10) and optical data transmitted by the device for monitoring an exterior aspect (20).

IPC Classes  ?

• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
• G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material
• G01N 21/88 - Investigating the presence of flaws, defects or contamination

Abstract

The laser-ultrasound measurement system according to the invention can be used to simultaneously take two measurements at a single given point on the surface of the structure to be analysed, taken with two different levels of intensity of reflected light. For this purpose, it comprises two measurement paths for measuring the signal reflected by the structure, each path being associated with a specific detector (13 and 23). These two paths are configured and arranged in such a way as to receive different proportions of the reflected light signal. To this end, two secondary light signals, of different intensities, are generated from the signal (33) reflected by the structure. There is therefore one measurement path operating at maximum intensity, and one measurement path operating at attenuated intensity. Therefore, if the signal (33) reflected by the surface (41) of the structure comes from a specular reflection and the measurement path at maximum intensity is saturated, the measurement taken by the measurement path at attenuated intensity is still available.

IPC Classes  ?

• G01N 29/04 - Analysing solids
• G01N 29/24 - Probes
• G01N 29/32 - Arrangements for suppressing undesired influences, e.g. temperature or pressure variations
• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
• G01N 29/11 - Analysing solids by measuring attenuation of acoustic waves

Abstract

The invention relates to a device for the completely automated detection and characterization of a resin flash in a part (100) consisting of a composite material, said device comprising: i) an OCT measuring head (210) including an OCT measuring module; ii) a manipulator (200) capable of moving said OCT head in space; iii) a means (250) for controlling said manipulator; and iv) a computer means (250) including a memory means for acquiring the definition of the geometry of the area (240) to be tested, for recording the measurements, for storing a criterion file, and for performing calculations pertaining to the comparison of the recording with said criterion file. The invention also relates to a method, to be implemented by said device, for the detection and characterization of such a resin flash.

IPC Classes  ?

• G01N 21/84 - Systems specially adapted for particular applications
• G01N 33/44 - ResinsPlasticsRubberLeather

Abstract

The invention relates to a method for the nondestructive testing, using laser ultrasonics, of a composite part (100, 500) having a fibrous reinforcement (120) in a resin (110) that optically scatters the laser, characterized in that it includes the steps of: a) taking (720, 820) a measurement of the thickness of the resin of the part on the surface that is illuminated during the laser shot (770, 840), which is capable of generating a thermoelastic effect in said resin and which is referred to as an ultrasonic laser shot; b) adjusting (760, 830) the power of the laser of said ultrasonic shot on the basis of the thickness measurement carried out in step a) so as to eliminate any risk of a flash on the reinforcements; and c) producing the ultrasonic laser shot (770, 840) at the power determined during step b). The device used for implementing said method consists of a combined photoacoustic imaging and low time-coherence interferometry (OCT) system.

IPC Classes  ?

• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
• G01N 29/24 - Probes
• G01N 29/06 - Visualisation of the interior, e.g. acoustic microscopy

Abstract

The invention concerns a structural assembly (100) comprising: - a closed chain defining a closed peripheral contour lying within a plane, comprising a plurality of successive structural links (200), each structural link comprising two structural branches (201a, 201b) facing one another and of convexity oriented in substantially opposing directions, linked together at each of the opposing ends (204a, 204b) thereof by a so-called end node (300), - means (400, 500) for geometrically stabilising the peripheral contour, said means being disposed in such a way as to prevent the geometric deformation of the peripheral contour in the plane under the effect of external pressure forces exerted, and said means comprising: - for each link (200), a first inextensible stabilising member (400) linking two branches (201a, 201b) of a same link, excluding the end nodes (300), - a second inextensible stabilising member (500) linking two non-adjacent end nodes of two separate links. The structural assembly is advantageously intended for the production of stratospheric balloons.

IPC Classes  ?

• B64B 1/08 - Framework construction
• B64B 1/58 - Arrangements or construction of gas-bagsFilling arrangements
• B64B 1/62 - Controlling gas pressure, heating, cooling, or discharging gas
• B64B 1/14 - Outer covering
• B64B 1/44 - Balloons adapted to maintain predetermined altitude

Abstract

Disclosed is in particular a device (2) for stressing an integrated circuit (1) including an electronic chip (10) mounted in a housing (12), the device including a source (20) of thermal stress. The device (2) also includes a thermally conductive coupling member (22), designed to be thermally coupled to the source (20) of thermal stress during the stressing operation. The coupling member (22) includes an end (220) whose geometry is suitable for being introduced into an aperture with a predefined geometry, to be made in the housing (12) of the integrated circuit (1) so as to thermally couple a coupling face (222) of this end (220) with a face (102) of the electronic chip (10).

IPC Classes  ?

• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

Abstract

A diffractive device for fitting to a façade (11) of a building, or to any other reflective wall, exposed to electromagnetic radiation emitted by a source located at a distance from the building, the device comprising a plurality of tubular resonant elements (12) arranged on the façade of said building, characterised in that said resonant elements are arranged in a substantially parallel manner on the façade (11) of said building in such a way as to form a diffraction grating and are oriented in a substantially perpendicular direction to the plane defined by the propagation vectors of the incident and reflected electromagnetic waves, each resonant element (12) being configured to form an LC resonator capable of re-radiating a wave corresponding to the incident wave affected by a phase shift; the set of resonant elements being arranged in such a way that the incident wave is diffracted in a preferential direction. The diffraction grating formed in this way is advantageously not as thick as the existing devices. The overall structure is both lighter and less susceptible to deformation.

IPC Classes  ?

• H01Q 15/14 - Reflecting surfacesEquivalent structures
• E04F 13/12 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of a plurality of similar covering or lining elements of metal
• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

The invention consists of a diffractive device for fitting to a façade (31) of a building (30), or to any other reflective wall. The device comprises a plurality of conductive structural elements (11) arranged periodically and in a substantially parallel manner on the façade of said building, in such a way as to form a diffraction grating. Said conductive elements (11) are cylindrical elements of trapezoidal cross-section (12) whereof the height (h) and the width at the top (w) are determined on the basis of the frequency of the incident wave. In order to achieve this, various values of the width of the base (b) are considered, and the element (23), whereof the cross-section minimises the reflection of the incident wave in the specular direction, is determined for each of said values while considering various height (h) values. One of said elements (23) determined in this way is then selected on the basis of predefined mechanical criteria.

IPC Classes  ?

• H01Q 15/14 - Reflecting surfacesEquivalent structures
• E04F 13/12 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of a plurality of similar covering or lining elements of metal
• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

An aircraft fuselage structure, includes a circumferential reinforcing frame (2) and a plurality of stringers (3) substantially perpendicular to the frame. The frame includes a mechanically weakened area able to cause its localized buckling under the effect of a compressive force exerted circumferentially thereon. The structure includes an energy absorbing device (5) having two effector members (52) secured to the frame respectively on either side of the weakened area, and a central core (51) maintained between the effector members such that a reduction in the distance between the effector members produces a deformation of the central core, which is able to absorb energy under the effect of the deformation.

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons

Abstract

The invention essentially relates to an EMC filtering device (1), characterized in that said filtering device comprises a printed circuit (5) comprising at least two parallel layers (25, 26) of a high-permittivity material, which are positioned between two layers (20-22) of an insulating material that are parallel to one another and to the layers (25, 26) of a high-permittivity material, a core (10) made of a magnetic material comprising three cylindrical arms (13-15) passing perpendicularly through the layers (20-22, 25, 26), at least two windings (35, 36) winding around the first arm (13) of the magnetic material core (10), said windings (35, 36) and the first arm (13) forming a first coil (30), at least two windings (37, 38) winding around the second arm (15) of the magnetic material core (10), said windings (37, 38) and the second arm (15) forming a second coil (31), the two coils (30, 31) being coupled coils (30, 31).

IPC Classes  ?

• H01P 1/23 - Attenuating devices using ferromagnetic material
• H01P 1/203 - Strip line filters
• H01F 17/00 - Fixed inductances of the signal type
• H01F 17/04 - Fixed inductances of the signal type with magnetic core
• H01F 19/04 - Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
• H05K 1/02 - Printed circuits Details
• H05K 1/03 - Use of materials for the substrate
• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• H05K 3/14 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using spraying techniques to apply the conductive material

Abstract

The invention relates to an inertia wheel comprising a storage ring (1) and a hub (2) connecting the storage ring (1) to a rotation shaft (3) of the wheel, said hub (2) comprising a central part forming a hub body (2a) for connecting to the shaft (3), a peripheral part forming a rim (2c) for connecting to the storage ring and an intermediate part formed by a disk (2b) between the hub body and the rim. The inertia wheel is characterised in that the hub is made from a composite material and includes a module having a stiffness that decreases from the hub body to the rim. The invention also relates to the method for producing such an inertia wheel.

IPC Classes  ?

• B29C 70/28 - Shaping operations therefor
• B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• F16F 15/00 - Suppression of vibrations in systemsMeans or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion

Abstract

The invention relates to an inertia wheel comprising a storage ring (1) and a hub (2) connecting the storage ring (1) to a rotation shaft (3) of the wheel, said hub (2) comprising a central part forming a hub body (2a) for connecting to the shaft (3), a peripheral part forming a rim (2c) for connecting to the storage ring and an intermediate part formed by a disk (2b) between the hub body and the rim. The inertia wheel is characterised in that the hub is made from a composite material and includes a module having a stiffness that decreases from the hub body to the rim. The invention also relates to the method for producing such an inertia wheel.

IPC Classes  ?

• B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
• F16F 15/00 - Suppression of vibrations in systemsMeans or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B29C 70/28 - Shaping operations therefor

Abstract

The invention relates to a method for cultivating oleaginous yeasts, in particular of the Yarrowia genus, on carbon substrates, comprising: a production phase in which the phosphorous content in the culture medium is adjusted so as to maintain the level of intracellular phosphorous at a value in the range of 4 to 27 mg/g, enabling the production of lipids whilst preventing the production of exocellular co-products, in particular citric acid, in conditions in which the nitrogen content in the culture medium is adjusted to limit the specific growth speed μ of said yeasts to a value in the range of 0.03 to 0.06 h-1.

IPC Classes  ?

• C12N 1/16 - YeastsCulture media therefor
• C12P 7/64 - FatsFatty oilsEster-type waxesHigher fatty acids, i.e. having at least seven carbon atoms in an unbroken chain bound to a carboxyl groupOxidised oils or fats
• C12Q 3/00 - Condition-responsive control processes

Abstract

The invention relates to a method for the laser-ultrasound-based control of parts having specular reflectivity, said method comprising the steps of: generating a detection laser (10) to be reflected off a part (20), and measuring the detection laser (10) reflected off the part (20). The method is characterised in that the measurement is taken using two different collection angles, the collection axes being offset angularly, and using two demodulation means (31, 32). The invention also relates to a system for the laser-ultrasound-based control of parts having specular reflectivity.

IPC Classes  ?

• G01N 29/07 - Analysing solids by measuring propagation velocity or propagation time of acoustic waves
• G01N 29/24 - Probes

Abstract

The invention relates to a system for controlling the quality of an object leaving a production facility. According to the invention, the system comprises: a chamber including an inlet port through which the object to be inspected is inserted into the chamber and at least one outlet port, said chamber having an inspection zone (5); a transport device for conveying the object to be inspected into the inspection zone (5) and for releasing same through the at least one outlet port; a weighing apparatus (7) for weighing the object in the inspection zone (5); an assembly for the contact-free dimensional measuring of the object in the inspection zone (5); and an assembly for analysing the structure of the object in the inspection zone (5) by means of laser beams and/or X-rays. The aforementioned chamber is made from a material that is opaque for the wavelengths of the laser beams during operation and the X-rays, in order to prevent any radiation leakage.

IPC Classes  ?

• G01M 11/00 - Testing of optical apparatusTesting structures by optical methods not otherwise provided for
• G01M 13/00 - Testing of machine parts
• G01B 15/04 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
• G01G 11/00 - Apparatus for weighing a continuous stream of material during flowConveyor-belt weighers
• G01N 23/04 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and forming images of the material

Abstract

The invention relates to a method for optimizing the tolerancing of a set of flexible parts, said parts being particularly subjected to forces. The method that is the subject of the invention enables the definition, at the design phase, of an optimum tolerancing for flexible parts according to the assembly process plan thereof and according to the desired functional requirements. Said method considers that structural digital models (201, 202) are parts to be assembled. Said digital models (201, 202) are composed of the following information: - a plurality of points referred to as assembly points (220); - a plurality of points referred to as structural points (230); - mathematical relations, known as mechanical stiffness, such as a non-null relative displacement of a structural point (230) or an assembly point (220) in relation to the other structural or assembly points in a single digital model, modify a tensor in each of these points. From a mechanical point of view, these mathematical relations express the existence of an elastic recovery property between the points (220, 230) that make up the digital model (201, 202). The issue of optimization is simplified by: the definition of influence factors; the simulation of parts deviating from the nominal by a distortion vector.

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for
• G05B 19/4097 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM

Abstract

The aim of the invention is a method of selecting a piece of electronic equipment comprising at least an electronic component (101), said electronic equipment potentially being subjected to irradiation conditions listed in predetermined specifications, the method comprising a phase for the characterisation of a sensitivity parameter of the electronic component (101) to these irradiation conditions, this phase comprising: - an irradiation step (210) of irradiating the electronic component (101) with a source of ionizing radiation (100) having the known irradiation characteristics and geometry, - a step (220) of measuring a set of operating values of the electronic component (101) during this irradiation step, said method being characterised in that: - the irradiation step comprises measurements of the sensitivity of the electronic component (101) for a number of irradiation conditions lower than all of the conditions listed in the specifications, - the method further comprises a step (240) of extrapolating the measured results to the other irradiation conditions of the specifications.

IPC Classes  ?

• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
• G01R 31/3181 - Functional testing

Abstract

The object of the invention is a drive system of at least one rotor of an aircraft via electrical energy in addition to or as a replacement of a mechanical system, characterised in that the electrical energy is provided at least in part by at least one device (104) for recovering thermal energy from hot gases of an internal combustion engine (1) of the aircraft.

IPC Classes  ?

• B64C 27/12 - Rotor drives
• B64C 27/82 - RotorcraftRotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting-rotor torque or changing direction of rotorcraft
• B64D 33/04 - Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes

Abstract

The object of the invention is a drive system of at least one rotor of an aircraft via electrical energy in addition to or as a replacement of a mechanical system, characterised in that the electrical energy is provided at least in part by at least one device (104) for recovering thermal energy from hot gases of an internal combustion engine (1) of the aircraft.

IPC Classes  ?

• B64C 27/12 - Rotor drives
• B64D 27/24 - Aircraft characterised by the type or position of power plants using steam or spring force
• B64D 33/04 - Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
• B64C 27/82 - RotorcraftRotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting-rotor torque or changing direction of rotorcraft

Abstract

The invention relates to a method for designing electronic equipment comprising at least one electronic component, wherein said component is to execute a dynamic application and is potentially subjected to disruptions, said application using internal elements of said component. The method comprises a stage for characterizing a sensitivity parameter of said component to said disruptions, said stage comprising: a step of executing the software application on a means for reproducing the operation of the component; and a step of monitoring, during said execution, specific so-called performance signals related to access to predetermined component elements, and a step of deducing, from said monitoring, a residence time of software application data in said elements.

IPC Classes  ?

• G06F 17/50 - Computer-aided design

Abstract

La présente invention se rapporte à un procédé de génération et d'optimisation d'architectures physiques de systèmes, caractérisé en ce qu'il comporte les étapes suivantes : modélisation d'un problème sous forme d'un modèle (M);génération d'architectures physiques (AP1, AP2,.., APN) au moyen dudit modèle (M) et d'un algorithme (A) qui recherche, pour une fonction, une combinaison de composants viable et valide; évaluation desdites architectures physiques (AP1, AP2,.., APN) selon plusieurs attributs (AT1, AT2,.., ATP) ou critères au moyen de modules d'analyse (MA1, MA2, MAN1) s'appuyant sur ledit modèle (M); sélection d'une partie desdites architectures physiques (AP1, AP2,.., APN) selon des relations de dominance;génération de nouvelles architectures physiques (ΑΡΊ, AP'2, AP'N ) en appliquant des opérateurs génétiques (OP1, OP2, OPN2) aux architectures physiques précédentes (AP1, AP2,.., APN); et synthèse des résultats en ne retenant qu'une partie desdites architectures physiques.

IPC Classes  ?

• G06F 17/50 - Computer-aided design

Abstract

The invention relates to a cross-beam (30) capable of supporting a structure (20) of an aircraft. The cross-beam (30) comprises: a first flange (35) extending lengthwise along a longitudinal axis (X) and widthwise along a transverse axis (Y), said first flange (35) including an inner surface (40) and an opposing outer surface (43); a second flange (36) extending parallel to the first flange (35) and comprising an inner surface (41) and an opposing outer surface (44), the inner surfaces (40, 41) of the two flanges (35, 36) being disposed facing one another; and a web (37) linking the two flanges (35, 36) and extending along a vertical axis (Z). The cross-beam is characterised in that the web (37) comprises two half-webs (38, 39) connected by a securing means (25), namely: a first half-web (38) solidly connected to the first flange (35), and a second half-web (39) solidly connected to the second flange (36). The first half-web (38) and the first flange (35) are made from an electrically conductive metal material, while the second half-web (39) and the second flange (36) are made from a composite material.

IPC Classes  ?

• B64C 1/18 - Floors
• B64C 1/06 - FramesStringersLongerons

Abstract

The invention relates to an aircraft structure module (10) comprising at least one tubular framework element (16, 17) extending along a longitudinal axis (X) and transverse beams (13) disposed substantially perpendicularly to the longitudinal axis (X) and solidly connected to the tubular element (16, 17). The module (10) is characterised in that the tubular framework element (16, 17) is sealed and provided with at least one means (26) for connecting to a fluid transfer circuit of the aircraft.

IPC Classes  ?

• B64C 1/18 - Floors
• B64C 1/06 - FramesStringersLongerons

Abstract

an adjustment device enabling the value of the threshold to be adjusted. Thus adjusting the slip threshold of the friction element enables the dissipation conditions to be adjusted.

IPC Classes  ?

• F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details

Abstract

The invention relates to an intermediate structure for retaining systems intended to be installed on board an aircraft, comprising a plurality of independent modules (M1 - M6) secured separately to a primary structure of a section of aircraft, each module including at least one securing element (40, 20) which can be secured to the primary structure and which can support at least one retaining element (10 - 14).

IPC Classes  ?

• B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for
• B64C 1/40 - Sound or heat insulation

Abstract

The device (12) for protecting a part (10) made of a composite comprises: a body made of a flexible material suitable for marrying, at least partially, the shape of the composite part; and an electrically conductive area (14) associated with the body made of the flexible material. In embodiments, the body made of the flexible material is able to form a plurality of zones for fastening it to the composite part and/or is suitably curved to create a gap of several tens of millimetres via discrete contact with the composite part. In embodiments, the device comprises fasteners (16, 22) connecting the protective device to an electrical contact (18) of the composite part. In embodiments, the electrically conductive area is formed by the material of the body of the device or is formed by a selective metallization.

IPC Classes  ?

• B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
• B64C 1/06 - FramesStringersLongerons
• B64D 45/02 - Lightning protectorsStatic dischargers

Abstract

The invention relates to an assembled structure (100) having a first part (10) that is attached to and held in contact (41) with a second part (20) at a bearing area by means of attachment elements (40), said structure comprising a resilient component (30) which is compressed between the first part (10) and the second part (20) in a cavity formed by a recess in the first part and/or by a recess in the second part. The resilient component is electrically conductive between a first surface engaging with the first part (10) at a bottom wall (15) of the cavity and a second surface engaging with the second part (20) at a bottom wall (25) of the cavity. The resilient component (30), which is compressed in the cavity, ensures the electrical continuity between the two assembled parts.

IPC Classes  ?

• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• H01R 4/64 - Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
• H01R 13/6596 - Specific features or arrangements of connection of shield to conductive members the conductive member being a metal grounding panel
• H01R 13/6583 - Shield structure with resilient means for engaging mating connector with separate conductive resilient members between mating shield members

Abstract

The invention relates to a combined rescue beacon and flight recorder device (1) for an airplane, which is ejectable, buoyant and/or provided with flotation devices, which comprises a frame provided with at least one outer side surface having a solar panel, and which is suitable for being placed in a recess produced in an element of the wing of the aircraft.

IPC Classes  ?

• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for

Abstract

The invention relates to a semi-finished product in the form of a strip (101, 102) that can be deposited by drape-forming so as to constitute a laminated composite material, characterized in that it includes, along a cross-section thereof and along the entire length thereof: a first conductive layer (105, 106) made of an electrically conductive material; two isolating layers (121, 122) made of a dielectric material completely surrounding the conductive layer (105, 106), the widths of the cross-sections of which is greater than the width of the conductive layer; two bonding layers (111, 112) extending in the thickness direction on either side of the isolation layers (121, 122) and outside the strip (101, 102). The invention also relates to a method for the continuous production of such a strip.

IPC Classes  ?

• H01B 7/08 - Flat or ribbon cables

Abstract

The present invention relates to a modular and generic electronic detection device, characterized in that it comprises: a mechanical actuator (10) connected to a target (20) through a front surface of a panel (30); and a plurality of sensors (41, 42, 43) for detecting the position of said target (20), which are connected to a printed circuit board (50). The present invention also relates to an aircraft including such a device.

IPC Classes  ?

• G01D 5/00 - 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
• H01H 36/00 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Abstract

The present invention relates to a method of simulating non-destructive testing with the aid of at least one probe, characterized in that it comprises the following steps: • measurement of inspection parameters, in particular related to the position of said probe in space; and • generation of synthetic signals corresponding to a non-destructive testing operation.

IPC Classes  ?

• G01N 29/00 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
• G09B 9/16 - Ambient or aircraft conditions simulated or indicated by instrument or alarm

Abstract

The invention relates to a device and method for the nondestructive testing of a part, in particular a part consisting of a composite material reinforced with fibers, said device including: a) an energizing laser beam generator and a means for producing a photoelastic stress pattern of the surface of the part, in an energizing area, using said laser beam; b) means (200, 210) for generating a first so-called detection laser beam (211) capable of illuminating the part in a target area; c) means (200, 220) for generating a second so-called reference detection laser beam (221), the characteristics of which can be controlled independently of those of the detection laser beam (211); d) a two-wave photoreactive detector (230) comprising a photorefractive crystal pumped by the reference laser beam (221); e) means for collecting the beam reflected by the target area of the first detection laser and conveying the beam into the photorefractive detector (230); and f) a means for modifying the characteristics of the reference laser (221) so as to adjust the bandwidth of the photorefractive detector (230).

IPC Classes  ?

• G01N 29/04 - Analysing solids
• G01N 29/24 - Probes
• G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated

Abstract

The invention relates to a device for monitoring the integrity and soundness of a mechanical structure, such as an aircraft, comprising a control unit (100) suitable for recovering data from a set of digital and/or analog sensors (110), a radiofrequency transmission means (120) enabling the control unit (100) to transmit the data received from the sensors to a man/machine interface, an electric battery (130) for powering said device, wherein said battery (130) is rechargeable, characterised in that the device comprises a module for recovering electromagnetic energy capable of converting the recovered electromagnetic energy into electric power so as to recharge said battery and/or directly power said device.

IPC Classes  ?

• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

Abstract

The invention relates to a device for implementing a method for pickling/stripping and for simultaneously nondestructively checking a part (100), said device including: a) an energizing laser head capable of generating pulsed energization (212) on the surface of a part (100, 300) according to an energy spectrum adapted for the detachment of the particles (231) adhering to said surface; and b) a detection laser head (220) connected to the energizing laser head and capable of measuring the response of the part to a pulse generated by the energizing head.

IPC Classes  ?

• G01N 29/24 - Probes
• B23K 26/36 - Removing material
• G01N 29/04 - Analysing solids
• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
• G01N 29/265 - Arrangements for orientation or scanning by moving the sensor relative to a stationary material

Abstract

The invention relates to a process for recycling a part made of a composite material having a thermoplastic matrix reinforced by continuous fibres, comprising the following operations: cutting (10) the part to be recycled (1) into lamella along a plane containing fibres, cutting (20) the lamella into chips of predefined dimensions, insertion (30) of the chips into a mould of predetermined shape, and hot pressing (40) of the chips in the mould in order to obtain a recycled part (2). It also relates to a recycling system implementing this process.

IPC Classes  ?

• B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics
• B29B 17/04 - Disintegrating plastics

Abstract

The invention relates to a structural part (13) capable of dissipating energy generated during an impact that compresses said part along an axis Z, comprising a web (131) having two opposite surfaces (133), characterized in that said part comprises: a through-window (134) extending between said opposite surfaces of the web, dividing said web into two main parts, referred to as a first part (135) and a second part (136), respectively, arranged in series along the axis Z; and a so-called energy-dissipation device comprising cutting means (112, 122) arranged within said window and capable of cutting at least one of said parts of the web into strips (139) by means of a compressive force exerted on said part along the Z axis, and means (113, 123) for clearing away the thus-formed strips.

IPC Classes  ?

• F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members

Abstract

the function of the body (5) is to take into account the mechanical stresses linked to the electronic cards hosted within the housing, and the function of the cover (4) is to ensure adequate thermal conductivity to allow heat produced by an electronic card in operation to be dissipated.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A drilling head (1) with an axial oscillation generator, includes a mounting (2) for coupling the head to a motor for rotating the mounting about an axis, the mounting (2) having a longitudinal axis (5) coinciding with the axis of rotation of the motor, a tool holder (3), an elastically deformable element (6) for retaining the tool holder (3) in the mounting (2) and an element (7) for guiding the tool holder (3) in the mounting (2) along the longitudinal axis (5) of the mounting, wherein the mounting of the drilling head includes a controlled generator (8) of reciprocating movements in the direction of the aforementioned axis (5) positioned between the mounting (2) and the tool holder, the tool holder and the generator being connected by a longitudinal coupling member (9) suitable for damping the impacts withstood by the tool holder while enabling the transmission of the reciprocating movements.

IPC Classes  ?

• B23B 37/00 - Boring by making use of vibrations of ultrasonic frequency
• B23B 29/12 - Special arrangements on tool holders
• B23B 47/34 - Arrangements for removing chips out of the holes madeChip-breaking arrangements attached to the tool

Abstract

A method for protection of a computer program source code comprising the following steps: translating said source code into a target code, generating an object code starting from said target code, applying an obfuscation program to protect said source code. The obfuscation step is executed after the source code has been translated into target code and before the generation of said object code.

IPC Classes  ?

• H04L 29/06 - Communication control; Communication processing characterised by a protocol

Abstract

Device for cooling a rotating tool mounted on a machine, including elements for generating a continually renewed first flow of air, external to the tool and around the tool, at a high flow rate, produced via a Coanda-effect flow amplifier device realized in a housing fixed on the machine around the tool holder connected to a source of pressurized air.

IPC Classes  ?

• B23B 51/06 - Drills with lubricating or cooling equipment
• B23B 31/02 - Chucks
• B23Q 11/10 - Arrangements for cooling or lubricating tools or work

Abstract

In order to produce a part (16) from a composite material, which is conductive at least on one of the surfaces thereof, the method consists of: the conductive overstitching (30) of a preform (20) of the part using electrically or thermally conductive threads (31, 32) with substantially parallel stitch lines (34) oriented in at least two intersecting directions. The parts obtained are adapted for the production of aircraft structures that may be subjected to lightning strikes and allow return currents from the electrical or electronic aircraft equipment and/or the discharge of heat by conduction.

IPC Classes  ?

• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
• B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced

Abstract

The invention relates to a method for virtually expanding and enriching the field of view of the current image of a scene described by a video including several images. b—enriching said field of view by at least one piece of information referenced in said contextual datum.

IPC Classes  ?

• G06K 9/36 - Image preprocessing, i.e. processing the image information without deciding about the identity of the image
• G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

Abstract

A method for identifying an object in a video archive including multiple images acquired in a network of cameras including a phase of characterization of the object to be identified and a phase of searching for the object in the archive, where the characterization phase consists of defining for the object at least one semantic characteristic capable of being extracted, even in low-resolution images, from the video archive.

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

The invention relates to a method for characterizing the sensitivity of an electronic component with respect to a natural radiating environment, comprising: turning on the electronic component; for given characteristics of a particle or incident beam, such as the energy, incidence, and/or path thereof, determining an SOA voltage range beyond which destructive events for said component occur; energizing the thus turned on electronic component with the characteristics of the particle or incident beam, under operating conditions that are close to the highest voltage value of the predetermined SOA voltage range; determining an efficient section of amplified transient events, said efficient section corresponding to an estimation of the destructive occurrences for said component; modifying the characteristics of said particle or said beam, and repeating the energizing of said component; and determining the efficient section for each modification of the characteristics.

IPC Classes  ?

• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
• G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
• G01R 31/311 - Contactless testing using non-ionising electromagnetic radiation, e.g. optical radiation of integrated circuits

Abstract

The present invention relates to a device for positioning to the normal a translation axis of a cylinder of an actuator on a curved surface. The cylinder device of the invention can be used in the context of a machining assembly comprising a numerical drilling grid capable of being secured to an aircraft structure in the referenced position. A machine tool comprising the cylinder device of the invention is mounted on the grid. The cylinder device has a third, non-slaved translation axis Z coincident with the machining axis. The cylinder device comprises pivoting and compliance means configured so as to allow the alignment of the drilling axis Z to the normal of the surface of the part by a simple translation movement of said axis.

IPC Classes  ?

• B23Q 1/54 - Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only two rotating pairs only
• B23Q 9/00 - Arrangements for supporting or guiding portable metal-working machines or apparatus

Abstract

The present invention relates to a device for positioning and locking a movable element (2) on a guide axis (6). The invention also relates to a method for implementing the operation of such a device. The positioning and locking device of the invention comprises a locking means (7) that is secured to the movable element, said locking means being slidably mounted on a locking axis (6, 9). Said device further comprises a docking means (11) comprising a hollow body (14) which is secured to the locking means and in which a rod (15) connected to a locking member (13) slides, said locking member being slidably mounted on the locking axis. The device of the invention enables the movable element to be moved while dispensing with the mechanical continuous-drive structures routinely used in the prior art for carrying out the positioning of the movable element and the precise locking thereof at a so-called target position to be reached.

IPC Classes  ?

• B23Q 1/28 - Means for securing sliding members in any desired position

Abstract

The invention relates to a garment of jacket type (1) incorporating a non-destructive control system comprising, as constituent elements, an electronic measurement device (26) able to be connected to a measurement sensor, and linked to an electronic card (20) itself linked to an electrical power supply source (21) and to a viewing and control screen (27), and cables for electrically and electronically linking said constituent elements to one another.

IPC Classes  ?

• G01N 27/90 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
• G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details

Abstract

and a “ground-side” method (200) for the subsequent analysis of fault sequence data and for improving the diagnostics tool.

IPC Classes  ?

• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• G05B 23/02 - Electric testing or monitoring

Abstract

The subject of the invention is a process for assembling at least two rigid preforms (1, 2) based on a thermoplastic composite material in order to form a three-dimensional structure, the two preforms being positioned relative to one another so that they have at least one zone of superposition. According to the invention, it comprises the following successive steps: - positioning a working head assembly (100) and heating means (4) in a region of the zone of superposition in order to produce a junction point (12) by inserting a fastening member (102), said working head comprising a piercing head (101) having a hollow body; - locally heating this region with the heating means (4) so as to locally soften the region facing the heating means; - piercing this region using the piercing head, - placing the fastening member (102) into said hollow body while keeping said piercing head (101) in position in the preforms; - introducing the fastening member (102) into the preforms through said hollow body of the piercing head (101) using a plunger (103); - withdrawing the piercing head (101) and moving said assembly in order to produce the next junction point; - repeating these steps so as to form at least one line of junction points in this zone of superposition.

IPC Classes  ?

• B29C 65/00 - Joining of preformed partsApparatus therefor
• B29C 65/56 - Joining of preformed partsApparatus therefor using mechanical means

Abstract

The invention relates to an aircraft fuselage structure comprising a circumferential reinforcing frame (2) and a plurality of stringers (3) substantially perpendicular to the frame. The frame comprises a mechanically weakened area capable of undergoing localised buckling under the effect of a compressive force exerted circumferentially thereon. The structure comprises an energy absorbing device (5) including two effector members (52) solidly connected to the frame on each side of the weakened area respectively and a central core (51) maintained between the effector members such that a reduction in the distance between the effector members produces a deformation of the central core which can absorb energy under the effect of said deformation.

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons

Abstract

The subject of the present invention is in particular a device (2) for stressing an integrated circuit (1) comprising an electronic chip (10) mounted in a package (12), said device comprising a source (20) of thermal stress. The device (2) also comprises a thermally conductive coupling member (22) intended to be thermally coupled to the source (20) of thermal stress during the stressing operation. The coupling member (22) comprises an end (220) having a geometry suited to introduction into an aperture having a preset geometry, which is to be produced in the package (12) of the integrated circuit (1) so as to thermally couple a coupling face (222) of this end (220) with a face (102) of the electronic chip (10).

IPC Classes  ?

• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
• H01L 23/34 - Arrangements for cooling, heating, ventilating or temperature compensation

Abstract

A method of searching for a scene based on a stream of images archived in a video surveillance database including: a first phase of preprocessing prior to archiving of the images including extracting generic information from the images of the stream, systematically annotating the scenes of the images by at least one indication defined as a function of the generic information, and indexing the scenes of the images based on information extracted from the indications originating from one or more streams; a second phase of investigation by preselecting video segments from the stream of images including the annotation indications associated with the images; and a third phase of searching for a particular scene based on at least one additional characteristic not forming part of the annotations associated with the preselected video segments.

IPC Classes  ?

• H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• G06F 17/30 - Information retrieval; Database structures therefor

Abstract

The invention relates to a semi-active damping device used to damp vibrations moving relative to two elements between which said device is attached. Said device includes: a first member extending axially along a longitudinal axis; a second member extending along the same longitudinal axis, the two members being guided translatably relative to one another. A friction element extends between the two members and joins said members together completely by friction in an axial translational direction for any force lower than a threshold 's', said force tending to produce a relative translational movement of the two members along said longitudinal axis; an adjustment device enables the value of said threshold to be adjusted. Adjusting the sliding threshold of the friction element thus enables the dissipation conditions to be adjusted.

IPC Classes  ?

• F16F 7/08 - Vibration-dampersShock-absorbers with friction surfaces rectilinearly movable along each other
• F16F 7/09 - Vibration-dampersShock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type

Abstract

The invention relates to a composition for a coating (4, 6, 7) including: between 35% and 75 wt% of urethane-acrylate oligomers having a number average molecular weight of between 1,000 and 5,000 g.mol-1; between 15% and 60 wt% of a diluent which is copolymerizable with the urethane-acrylate oligomers; between 0.5% and 5 wt% of hydrophobic pyrogenic silica. The invention further relates to a method for producing a coating, as well as the coatings derived from such a method.

IPC Classes  ?

• B05D 5/08 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
• C08F 290/06 - Polymers provided for in subclass
• C08G 18/67 - Unsaturated compounds having active hydrogen
• C08K 3/36 - Silica
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• C09D 175/16 - Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds

Abstract

The invention relates to an ultra-rapid air vehicle and to a method for aerial locomotion provided by an ultra-rapid air vehicle. The air vehicle is propelled by an engine system consisting of jet engines (TB1, TB2), ramjet engines (ST1, ST2), and a streamlinable rocket engine for reducing the base drag in cruise phase. The air vehicle has a gothic delta wing (A) provided with winglets (a1, a2) that are movable to the two outer ends of the trailing edge of the delta wing (A).

IPC Classes  ?

• B64C 30/00 - Supersonic type aircraft
• B64C 5/08 - Stabilising surfaces mounted on, or supported by, wings
• B64C 5/10 - Stabilising surfaces adjustable

Abstract

The invention relates to a structural element (2) capable of recovering static compressive forces along an axis Z. Said structural element comprises two profile members (21, 22) made of fibrous composite material that extend along the axis Z, said two profile members being rigidly connected to one another, at a joining area (25), by means of so-called transverse fibers (26) that are perpendicularly placed at an interface between said two profile members, and moreover placed perpendicular to the axis Z, so that a shock along the axis Z causes a delamination of said transverse fibers in order to absorb the energy.

IPC Classes  ?

• F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
• B64C 1/06 - FramesStringersLongerons

Abstract

The invention relates to a lightning protection device (25) for an antenna receiver, comprising a shield (40, 70) for a coaxial cable (35, 65) connected to the antenna, and a high-pass filter mounted in series relative to said shield and capable of limiting the low-frequency power flowing in said coaxial cable, comprising a capacitor (30, 50, 55) and an inductor lower than 1 ohm at the lowest frequency used by said receiver, said capacitor including at least one layer of a conductive material embedded in a printed circuit. In some embodiments, the capacitor is made of a printed circuit (30) comprising at least two floorplans (50, 55), each of which is connected to the ground of a connector (80, 85) of the coaxial cable. The printed circuit may e.g. comprise at least one layer of a highly pervious material sandwiched between two layers of a conductive material.

IPC Classes  ?

• H01Q 1/50 - Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• H01H 83/10 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
• H01Q 1/28 - Adaptation for use in or on aircraft, missiles, satellites, or balloons

Abstract

The invention relates to a structural element made of a layered composite material in the form of an elongate profile section and comprising, in a thickness of the layering, three cores consisting of an electrically conductive material covered with a casing made of an electrically insulating material. The barycenters of the three cores are arranged, along a cross-section of the profile section, at the vertices of an equilateral triangle.

IPC Classes  ?

• H02G 3/36 - Installations of cables or lines in walls, floors or ceilings
• H02G 3/38 - Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
• B64C 1/18 - Floors
• B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
• B64C 1/06 - FramesStringersLongerons
• B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like

Abstract

The invention relates to a structural stiffener made of a layered composite material comprising a head (11) held at a distance from a sole plate by means of which said stiffener is intended to be attached to a panel. The head (11) comprises an assembly of stacked layers, including at least one fiber-based structural layer (111), at least one layer having insulating properties (118) and at least one conductive network layer (113) inserted between said structural layer and said insulating layer, and comprising a network of electrical conductive elements (120), each of which originates at a first end close to a longitudinal end of the stiffener and terminates at an end opposite an opposing longitudinal end of the stiffener.

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons
• H02G 3/38 - Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts

Abstract

The invention relates to a supporting structure for an aircraft floor panel, which consists of a three-dimensional truss (1) consisting of a single part made of a composite material comprising a plurality of long-fibre plies arranged substantially perpendicular to a surface (7) for receiving the floor panel included in the structure and so as to ensure the continuity of the fibres between adjacent meshes (2) of the truss.

IPC Classes  ?

• B64C 1/18 - Floors
• B29D 24/00 - Producing articles with hollow walls

Abstract

In order to protect an integrated circuit provided with a cryptoprocessor from attacks aiming to reveal secrets, it is anticipated to use a component sensitive to the activation of a parasitic (latchup) thyristor and/or to the activation of a parasitic bipolar transistor, or to design a circuit having this property. If the component is stressed due to the presence of this circuit, it is immediately deactivated, actually preventing the revelation of the secrets thereof.

IPC Classes  ?

• H03K 19/003 - Modifications for increasing the reliability
• H01L 31/101 - Devices sensitive to infrared, visible or ultraviolet radiation

Abstract

The invention relates to a strain gauge including a substrate (2) for mounting an element (3) to be reversibly lengthened by means of a force applied while displaying a variation in the resistance thereof, said element (3) lengthening itself along an axis for measurement by said gauge. According to the invention, said gauge includes at least one contrast target (5, 6) capable of reflecting an incident light beam, said at least one contrast target (5, 6) being placed on said gauge in a predetermined position that makes it possible to predetermine the center of the axis (4), for measurement by said strain gauge (1), by detecting the position of said at least one contrast target (5, 6).

IPC Classes  ?

• G01B 7/16 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
• G01M 5/00 - Investigating the elasticity of structures, e.g. deflection of bridges or aircraft wings
• G01S 17/06 - Systems determining position data of a target
• G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
• G06T 7/00 - Image analysis
• G01B 5/30 - Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
• G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges

Abstract

The process for manufacturing composite parts allowing said parts to be repaired relates to composite parts of the semi-cured type, that is to say parts having undergone a partial polymerization or curing operation, with a degree of cure typically between 10 and 50%. It includes a step of pressurizing and heating to a temperature above the glass transition temperature Tg locally, around an area considered to be delaminated. Optionally, it includes a second phase of correcting the local delamination of the same area, this area being considered to have undergone a second local delamination process, the reheat phase being carried above the new glass transition temperature Tg2 of the composite part, this temperature being especially determined by the degree of cure of the resin after the previous phase of correcting the local delamination.

IPC Classes  ?

• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 73/00 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass

Abstract

In order to make a structure of a composite material including elongated hollow shapes, such as hollow shapes associated with stiffeners of a stiffened panel, the invention comprises making cores including a bladder made of an elastomer material. The invention relates to a method for making such extractable cores in order to obtain cores having a very important length, and allowing the use of said cores for the industrial production of composite parts. The bladder is a cylindrical bladder that is conformed in a core mould, wherein the core itself does not have to be cylindrical, before being filled with a granular material and submitted to a negative pressure in order to impart a stable shape to the core by compaction of the granular material.

IPC Classes  ?

• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 33/50 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

Abstract

The invention relates to a method for manufacturing an aircraft part, comprising: arranging, in a stack including a preform (14), at least one layer (22, 29) of a material that has a perviousness to a predetermined resin that is less than that of a portion of the perform that is closest to the layer; and arranging, on one side of the layer (22, 29) opposite the perform, a sensor (24) for the presence of the resin.

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations

Abstract

The invention relates to a method for estimating the lifespan (TTFAPPLI) of a deep-sub-micron generation electronic integrated component, connected to a mechanism for detecting wear under previously defined specific conditions of use, said component being a commercially available one with very large-scale integration (VLSI), in particular sub-micronic.

IPC Classes  ?

• G06F 17/50 - Computer-aided design
• G06Q 90/00 - Systems or methods specially adapted for administrative, commercial, financial, managerial or supervisory purposes, not involving significant data processing
• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer

Abstract

The present invention relates to coating compositions for metallic devices, especially for aircrafts. The present invention more specifically relates to coating compositions providing protection against corrosion. An aspect of the present invention relates to ceramic particles, having at least one releasable active material substantially homogeneously distributed throughout each particle, characterized in that at least one of the said active material(s) is a corrosion inhibitor. Another aspect of the present invention relates to a coating composition comprising ceramic particles, said particles having at least one releasable active material substantially homogeneously distributed throughout each particle. Another aspect of the present invention relates to a use of such a coating composition to provide a metallic device with a protection against corrosion.

IPC Classes  ?

• C09D 5/08 - Anti-corrosive paints
• C23F 11/10 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
• C23F 11/18 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
• C23C 18/12 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material

Abstract

The invention relates to the inspection and production of pipes. Specifically, the inventive method is suitable for conveying the measurement results for a pipe placed in a stress field, regardless of the location, position or grip thereof in the measurement space. The method is also suitable for correcting the control program of a bending machine in order to reduce manufacturing deviations by only measuring the straight sections of the pipe.

IPC Classes  ?

• B21D 7/12 - Bending rods, profiles, or tubes with programme control
• B21D 7/14 - Bending rods, profiles, or tubes combined with measuring of bends or lengths
• G06F 17/50 - Computer-aided design
• G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile

Abstract

The invention relates to a double shouldered welding device for the friction stir welding of parts, in which at least one shoulder has two concentric rings providing two plane concentric bearing surfaces, the rings being arranged so that the smaller-diameter ring is capable of compressing the stirred material of the parts to be welded during advance of the welding device and so that the larger-diameter ring is capable of forming a sink-in stop for the smaller-diameter ring. The invention also relates to a method of friction stir welding by means of the welding device according to the invention, in which said device is force-driven.

IPC Classes  ?

• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

Abstract

The invention relates to a drilling head (1) with an axial oscillation generator, comprising a mounting (2) for coupling the head to a motor for rotating the mounting about an axis, the mounting (2) having a longitudinal axis (5) coinciding with the axis of rotation of the motor, a tool holder (3), an elastically deformable means (6) for retaining the tool holder (3) in the mounting (2) and a means (7) for guiding the tool holder (3) in the mounting (2) along the longitudinal axis (5) of said mounting, wherein the mounting of the drilling head includes a controlled generator (8) of reciprocating movements in the direction of the aforementioned axis (5) positioned between the mounting (2) and the tool holder (3), the tool holder and the generator being connected by a longitudinal coupling member (9) suitable for damping the impacts withstood by the tool holder (3) while enabling the transmission of the reciprocating movements.

IPC Classes  ?

• B23B 29/12 - Special arrangements on tool holders
• B23B 47/34 - Arrangements for removing chips out of the holes madeChip-breaking arrangements attached to the tool
• B23B 37/00 - Boring by making use of vibrations of ultrasonic frequency

Abstract

The invention relates to a method for assembling an electric, hydraulic or other network within a primary structure, for example an aircraft shell manufactured in the form of subassemblies such as sections assembled end-to-end, said network requiring to be assembled along a predetermined surface of the shell, referred to as the mounting surface, which comprises the following steps: manufacturing elements of the network, in the form of segments corresponding to each subassembly of the primary structure; manufacturing for each subassembly an intermediate structure with a shape similar to that of the mounting surface; attaching the segments of the network elements to the intermediate structure; inserting the fitted intermediate structure in the primary structure; attaching the fitted intermediate structure to the mounting structure and, during end-to-end assembly of the subassemblies of the primary structure, end-to-end connection of the segments belonging to a single transfer element extending over at least two dividing intermediate structures.

IPC Classes  ?

• B64C 1/06 - FramesStringersLongerons

Abstract

The invention relates to a housing (1) for at least one electronic card (2), intended for the aeronautical field, of the type having a standardised width and comprising two lateral guides suitable for engaging with slides arranged on the inner surfaces of an electronic rack, including two half-shells, top (4) and bottom (5), clamped against one another at the lateral guides, the bottom half-shell (5) comprising at least one support area (10) forming a recess for an electronic card, the housing (1) also including a means (19) for clamping each electronic card (2) in each corresponding recess, and for clamping at least one heat sink (16) against the top surface of at least one electronic card (2), the frame (5) having the function of absorbing mechanical constraints associated with the electronic cards (2) housed by the housing (1), the cover (4) having the function of ensuring good thermal conductivity enabling the heat produced by an electronic card (2) to be dissipated during the operation thereof.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H01L 23/40 - Mountings or securing means for detachable cooling or heating arrangements

Abstract

The invention relates to a process for manufacturing a stiffened part (1), made of a thermoplastic composite material, comprising a skin (2) formed from a thermoplastic composite material and at least one stiffener (3), having a closed cross section comprising two baseplates (311, 321), two webs (312, 322) and a head (331). The process comprises a step of producing a first component (31) of the stiffener, comprising a first baseplate (311) and a first web (312) or at least one part (312a) of a first web, a second component (32) of the stiffener, comprising a second baseplate (321) and a second web (322) or at least one part (322a) of a second web, a third component (33) comprising the head. It then comprises a step of positioning the baseplates of the first and second components (31, 32) on the skin (2), a step of attaching the skin (2) and the first and second components (31, 32) by co-consolidation and a step of fastening the third component (33) to the first and second components.

IPC Classes  ?

• B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core

Abstract

The invention relates to a method for virtually extending and enhancing the field of view of the common image of a scene created by a video comprising a plurality of images. Said method comprises the following steps: (a-) extending said field of view by at least one mosaic produced from said images and by inserting at least one contextual datum in the repository of the common image of said scene; and (b-) enhancing said field of view by at least one piece of information referenced in said contextual datum.

IPC Classes  ?

• G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting

Abstract

An aircraft includes a cabin in which at least part of the space is demarcated by trim panels and the cabin is provided with a system for the active control of ambient noise. Each trim panel is either an active panel including actuators powered by the active noise control system or a passive panel without such actuators. In addition, the trim panels of the cabin of the one type, either active or passive, are mechanically interchangeable with a panel of the other type, either passive or active, respectively. Power supply wiring for active panels is installed in the aircraft, this wiring being capable of powering all active panels which could be installed, whether said active panels are actually installed or whether interchangeable passive panels are installed. Finally, a power supply system for the active panels is installed in the aircraft and connected to the power supply wiring of the active panels.

IPC Classes  ?

• B64C 1/40 - Sound or heat insulation

Abstract

The invention relates to a device (1) for the nondestructive monitoring of a complex structure (5) using ultrasonic waves, comprising an ultrasonic probe comprising a matrix array of basic transducers (200a, 200b) that can be configured according to a plurality of different activation modes, a monitoring head (2) to which the probe (20) is attached, and an automaton (3) having the monitoring head (2). The device (1) also includes a plurality of end elements (22), each end element comprising a surface geometrically adapted to an area of the structure (5), means for selecting an end element (22) from the plurality of end elements and an activation mode from the plurality of activation modes, means for controlling an attachment, by the automaton (3), of the selected end element (22) to the monitoring head (2), and means for configuring the probe (20) with the selected activation mode. The invention also relates to a method for the nondestructive control of complex structures using ultrasonic waves.

IPC Classes  ?

• G01N 29/24 - Probes
• G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details providing acoustic coupling

Abstract

The invention relates to a method for protecting the source code of a computer program, comprising the following steps: translating said source code into a target code; using said target code to generate an object code; and applying an obfuscation program to protect said source code. According to the invention, the obfuscation step is performed after translating the source code into the target code and before generating said object code.

IPC Classes  ?

• G06F 21/14 - Protecting executable software against software analysis or reverse engineering, e.g. by obfuscation

Abstract

The invention relates to a method for obfuscating a computer program. Said method comprises the following steps: a – selecting a numerical variable V used by said program or an instruction of said program using said numerical value V, b – defining at least one operation which provides said numerical value V when executed, c – substituting at least one line of said program using the numerical value V for at least one new program line performing the operation that supplies the value of said numerical variable V.

IPC Classes  ?

• G06F 21/14 - Protecting executable software against software analysis or reverse engineering, e.g. by obfuscation