Abrégé

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.

Classes IPC  ?

• G01N 29/24 - Sondes
• G01N 29/44 - Traitement du signal de réponse détecté
• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques

Abrégé

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.

Classes IPC  ?

• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B29C 67/00 - Techniques de façonnage non couvertes par les groupes , ou
• C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p. ex. par broyage, meulage ou écrasement à la meule
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation

Abrégé

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).

Classes IPC  ?

• B64D 27/24 - Aéronefs caractérisés par le type ou la position des groupes moteurs utilisant la vapeur ou l'énergie de ressorts

Abrégé

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%.

Classes IPC  ?

• C22C 32/00 - Alliages non ferreux contenant entre 5 et 50% en poids d'oxydes, de carbures, de borures, de nitrures, de siliciures ou d'autres composés métalliques, p. ex. oxynitrures, sulfures, qu'ils soient soient ajoutés comme tels ou formés in situ

Abrégé

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.

Classes IPC  ?

• H01Q 15/02 - Dispositifs de réfraction ou diffraction, p. ex. lentille, prisme
• G02B 5/18 - Grilles de diffraction
• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure
• H01Q 15/14 - Surfaces réfléchissantesStructures équivalentes
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
• E04F 13/08 - Revêtements ou enduits, p. ex. pour murs ou plafonds constitués d'éléments d'habillage ou de garnissageLeurs bâtisLeurs moyens de fixation constitués de plusieurs éléments d'habillage ou de garnissage semblables

Abrégé

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.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe

Abrégé

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).

Classes IPC  ?

• B64C 1/06 - CadresLissesLongerons
• B64C 3/20 - Structures monoblocs ou en sandwich
• B64C 11/26 - Pales composites, p. ex. stratifiées
• F01D 5/28 - Emploi de matériaux spécifiésMesures contre l'érosion ou la corrosion

Abrégé

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.

Classes IPC  ?

• B64C 11/20 - Caractéristiques de construction
• B64C 27/00 - GiravionsRotors propres aux giravions
• B32B 5/24 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse
• F41H 5/04 - Structure des plaques composées de plus d'une couche

Abrégé

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.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06K 9/03 - Détection ou correction d'erreurs, p.ex. par une seconde exploration

Abrégé

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.

Classes IPC  ?

• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques
• G01N 29/30 - Dispositions pour l'étalonnage ou la comparaison, p. ex. avec des objets standard
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

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.

Classes IPC  ?

• B64C 39/02 - Aéronefs non prévus ailleurs caractérisés par un emploi spécial
• B64D 27/24 - Aéronefs caractérisés par le type ou la position des groupes moteurs utilisant la vapeur ou l'énergie de ressorts
• B64D 39/00 - Ravitaillement en vol
• H01R 13/62 - Moyens pour faciliter l'engagement ou la séparation des pièces de couplage ou pour les maintenir engagées
• H01R 24/38 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement

Abrégé

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.

Classes IPC  ?

• G06T 7/20 - Analyse du mouvement

Abrégé

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.

Classes IPC  ?

• H02K 55/00 - Machines dynamo-électriques comportant des enroulements qui fonctionnent à des températures cryogéniques

Abrégé

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.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• B29C 45/76 - Mesure, commande ou régulation

Abrégé

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.

Classes IPC  ?

• F03G 3/00 - Autres mécanismes moteurs, p. ex. mécanismes moteurs à gravité ou inertie

Abrégé

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.

Classes IPC  ?

• H04L 12/46 - Interconnexion de réseaux
• G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires
• G06F 9/44 - Dispositions pour exécuter des programmes spécifiques
• H04L 12/713 - Prévention ou récupération du défaut de routage, p.ex. reroutage, redondance de route "virtual router redundancy protocol" [VRRP] ou "hot standby router protocol" [HSRP] par redondances de nœud, p.ex. VRRP
• H04L 12/715 - Routage hiérarchique, p.ex. réseaux en grappe ou routage inter-domaine

Abrégé

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.

Classes IPC  ?

• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails pour établir le couplage acoustique

Abrégé

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.

Classes IPC  ?

• B23B 35/00 - Méthodes d'alésage ou de perçage ou autres méthodes de travail impliquant l'utilisation de machines à aléser ou à percerUtilisation d'équipements auxiliaires en relation avec ces méthodes
• B23B 51/04 - Outils pour machines à percer pour trépaner
• B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées

Abrégé

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).

Classes IPC  ?

• B29C 70/44 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.-à-d. d'objets distincts utilisant une pression isostatique, p. ex. moulage par différence de pression, avec un sac à vide, dans un autoclave ou avec un caoutchouc expansible
• B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation

Abrégé

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.

Classes IPC  ?

• H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure
• H01Q 15/00 - Dispositifs pour la réflexion, la réfraction, la diffraction ou la polarisation des ondes rayonnées par une antenne, p. ex. dispositifs quasi optiques

Abrégé

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.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

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.

Classes IPC  ?

• F16F 7/12 - Amortisseurs de vibrationsAmortisseurs de chocs utilisant une déformation plastique de ses organes
• B64C 1/06 - CadresLissesLongerons

Abrégé

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).

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe
• G01N 21/88 - Recherche de la présence de criques, de défauts ou de souillures

Abrégé

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.

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/24 - Sondes
• G01N 29/32 - Dispositions pour supprimer des influences indésirables, p. ex. des variations de température ou de pression
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
• G01N 29/11 - Analyse de solides en mesurant l'atténuation des ondes acoustiques

Abrégé

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.

Classes IPC  ?

• G01N 21/84 - Systèmes spécialement adaptés à des applications particulières
• G01N 33/44 - RésinesMatières plastiquesCaoutchoucCuir

Abrégé

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.

Classes IPC  ?

• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 29/24 - Sondes
• G01N 29/06 - Visualisation de l'intérieur, p. ex. microscopie acoustique

Abrégé

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.

Classes IPC  ?

• B64B 1/08 - Structure de l'ossature
• B64B 1/58 - Disposition ou structure des ballonnetsRemplissage
• B64B 1/62 - Commande de la pression du gaz, du chauffage, refroidissement ou libération du gaz
• B64B 1/14 - Enveloppe extérieure
• B64B 1/44 - Ballons adaptés pour conserver une altitude prédéterminée

Abrégé

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).

Classes IPC  ?

• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux

Abrégé

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.

Classes IPC  ?

• H01Q 15/14 - Surfaces réfléchissantesStructures équivalentes
• E04F 13/12 - Revêtements ou enduits, p. ex. pour murs ou plafonds constitués d'éléments d'habillage ou de garnissageLeurs bâtisLeurs moyens de fixation constitués de plusieurs éléments d'habillage ou de garnissage semblables en métal
• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques

Abrégé

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.

Classes IPC  ?

• H01Q 15/14 - Surfaces réfléchissantesStructures équivalentes
• E04F 13/12 - Revêtements ou enduits, p. ex. pour murs ou plafonds constitués d'éléments d'habillage ou de garnissageLeurs bâtisLeurs moyens de fixation constitués de plusieurs éléments d'habillage ou de garnissage semblables en métal
• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques

Abrégé

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.

Classes IPC  ?

• B64C 1/06 - CadresLissesLongerons

Abrégé

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).

Classes IPC  ?

• H01P 1/23 - Atténuateurs utilisant un matériau ferromagnétique
• H01P 1/203 - Filtres triplaque
• H01F 17/00 - Inductances fixes du type pour signaux
• H01F 17/04 - Inductances fixes du type pour signaux avec noyau magnétique
• H01F 19/04 - Transformateurs ou inductances mutuelles appropriés au maniement des fréquences situées bien au-delà de la bande acoustique
• H01F 27/28 - BobinesEnroulementsConnexions conductrices
• H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
• H05K 1/02 - Circuits imprimés Détails
• H05K 1/03 - Emploi de matériaux pour réaliser le substrat
• H05K 1/16 - Circuits imprimés comprenant des composants électriques imprimés incorporés, p. ex. une résistance, un condensateur, une inductance imprimés
• H05K 3/14 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché utilisant la technique de la vaporisation pour appliquer le matériau conducteur

Abrégé

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.

Classes IPC  ?

• B29C 70/28 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements
• B32B 3/02 - Caractérisés par des caractéristiques de forme en des endroits déterminés, p. ex. au voisinage des bords
• B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
• F16F 15/00 - Suppression des vibrations dans les systèmesMoyens ou dispositions pour éviter ou réduire les forces de déséquilibre, p. ex. dues au mouvement

Abrégé

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.

Classes IPC  ?

• B32B 3/02 - Caractérisés par des caractéristiques de forme en des endroits déterminés, p. ex. au voisinage des bords
• F16F 15/00 - Suppression des vibrations dans les systèmesMoyens ou dispositions pour éviter ou réduire les forces de déséquilibre, p. ex. dues au mouvement
• B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
• B29C 70/28 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements

Abrégé

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.

Classes IPC  ?

• C12N 1/16 - LevuresLeurs milieux de culture
• C12P 7/64 - GraissesHuilesCires de type esterAcides gras supérieurs, c.-à-d. ayant une chaîne continue d'au moins sept atomes de carbone liée à un groupe carboxyleHuiles ou graisses oxydées
• C12Q 3/00 - Procédés de commande sensible aux conditions du milieu

Abrégé

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.

Classes IPC  ?

• G01N 29/07 - Analyse de solides en mesurant la vitesse de propagation ou le temps de propagation des ondes acoustiques
• G01N 29/24 - Sondes

Abrégé

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.

Classes IPC  ?

• G01M 11/00 - Test des appareils optiquesTest des structures ou des ouvrages par des méthodes optiques, non prévu ailleurs
• G01M 13/00 - Test des pièces de machines
• G01B 15/04 - Dispositions pour la mesure caractérisées par l'utilisation d'ondes électromagnétiques ou de radiations de particules, p. ex. par l'utilisation de micro-ondes, de rayons X, de rayons gamma ou d'électrons pour mesurer des contours ou des courbes
• G01G 11/00 - Appareils pour peser au passage un produit dont l'écoulement est continuAppareils de pesée pour bande transporteuse
• G01N 23/04 - Recherche ou analyse des matériaux par l'utilisation de rayonnement [ondes ou particules], p. ex. rayons X ou neutrons, non couvertes par les groupes , ou en transmettant la radiation à travers le matériau et formant des images des matériaux

Abrégé

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.

Classes IPC  ?

• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]
• B64F 5/00 - Tracé, fabrication, assemblage, nettoyage, entretien ou réparation des aéronefs, non prévus ailleursManipulation, transport, test ou inspection de composants d’aéronefs, non prévus ailleurs
• G05B 19/4097 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par l'utilisation de données de conception pour commander des machines à commande numérique [CN], p. ex. conception et fabrication assistées par ordinateur CFAO

Abrégé

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.

Classes IPC  ?

• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux
• G01R 31/3181 - Tests fonctionnels

Abrégé

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.

Classes IPC  ?

• B64C 27/12 - Entraînements des rotors
• B64C 27/82 - GiravionsRotors propres aux giravions caractérisés par l'existence d'un rotor auxiliaire ou d'un dispositif à jet fluide pour contrebalancer le couple du rotor de sustentation ou faire varier la direction du giravion
• B64D 33/04 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs des sorties d'échappement ou des tuyères

Abrégé

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.

Classes IPC  ?

• B64C 27/12 - Entraînements des rotors
• B64D 27/24 - Aéronefs caractérisés par le type ou la position des groupes moteurs utilisant la vapeur ou l'énergie de ressorts
• B64D 33/04 - Aménagement sur les aéronefs des éléments ou des auxiliaires des ensembles fonctionnels de propulsion, non prévu ailleurs des sorties d'échappement ou des tuyères
• B64C 27/82 - GiravionsRotors propres aux giravions caractérisés par l'existence d'un rotor auxiliaire ou d'un dispositif à jet fluide pour contrebalancer le couple du rotor de sustentation ou faire varier la direction du giravion

Abrégé

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.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur

Abrégé

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.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur

Abrégé

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.

Classes IPC  ?

• B64C 1/18 - Planchers
• B64C 1/06 - CadresLissesLongerons

Abrégé

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.

Classes IPC  ?

• B64C 1/18 - Planchers
• B64C 1/06 - CadresLissesLongerons

Abrégé

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.

Classes IPC  ?

• F16F 9/32 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement Parties constitutives

Abrégé

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).

Classes IPC  ?

• B64F 5/00 - Tracé, fabrication, assemblage, nettoyage, entretien ou réparation des aéronefs, non prévus ailleursManipulation, transport, test ou inspection de composants d’aéronefs, non prévus ailleurs
• B64C 1/40 - Insonorisation ou isolation calorifique

Abrégé

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.

Classes IPC  ?

• B29C 70/88 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts caractérisées principalement par des propriétés spécifiques, p. ex. électriquement conductrices ou renforcées localement
• B64C 1/06 - CadresLissesLongerons
• B64D 45/02 - Dispositifs de protection contre la foudreDéperditeurs de potentiel

Abrégé

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.

Classes IPC  ?

• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
• H01R 4/64 - Connexions entre ou avec des parties conductrices n'ayant pas au premier chef de fonction électrique, p. ex. châssis, boîtier, rail
• H01R 13/6596 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un panneau métallique de mise à la terre
• H01R 13/6583 - Structure du blindage avec des moyens élastiques destinés à venir en contact avec le connecteur correspondant avec des organes élastiques conducteurs indépendants entre les organes de blindage correspondants

Abrégé

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.

Classes IPC  ?

• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs

Abrégé

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.

Classes IPC  ?

• H01B 7/08 - Câbles plats ou à ruban

Abrégé

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.

Classes IPC  ?

• G01D 5/00 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière
• H01H 36/00 - Interrupteurs actionnés par la variation du champ magnétique ou champ électrique, p. ex. par le changement de la position relative d'un aimant et d'un interrupteur, par écran

Abrégé

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.

Classes IPC  ?

• G01N 29/00 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet
• G09B 9/16 - Simulation ou indication par un instrument ou une alarme des conditions ambiantes ou des paramètres de l'aéronef

Abrégé

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).

Classes IPC  ?

• G01N 29/04 - Analyse de solides
• G01N 29/24 - Sondes
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné

Abrégé

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.

Classes IPC  ?

• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
• G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente

Abrégé

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.

Classes IPC  ?

• G01N 29/24 - Sondes
• B23K 26/36 - Enlèvement de matière
• G01N 29/04 - Analyse de solides
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe

Abrégé

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.

Classes IPC  ?

• B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
• B29B 17/04 - Désintégration des matières plastiques

Abrégé

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.

Classes IPC  ?

• F16F 7/12 - Amortisseurs de vibrationsAmortisseurs de chocs utilisant une déformation plastique de ses organes

Abrégé

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.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

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.

Classes IPC  ?

• B23B 37/00 - Alésage utilisant des vibrations de fréquence ultrasonore
• B23B 29/12 - Agencements particuliers des porte-outils
• B23B 47/34 - Agencements pour enlever les copeaux des trous pendant le perçageAgencements fixés à l'outil pour briser les copeaux

Abrégé

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.

Classes IPC  ?

• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

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.

Classes IPC  ?

• B23B 51/06 - Forets prévus pour être lubrifiés ou refroidis
• B23B 31/02 - Mandrins de serrage
• B23Q 11/10 - Dispositions pour le refroidissement ou la lubrification des outils ou des pièces travaillées

Abrégé

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.

Classes IPC  ?

• B29C 70/22 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins deux directions formant une structure bidimensionnelle
• B29C 70/24 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans au moins trois directions formant une structure tridimensionnelle
• B29C 70/88 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts caractérisées principalement par des propriétés spécifiques, p. ex. électriquement conductrices ou renforcées localement

Abrégé

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.

Classes IPC  ?

• G06K 9/36 - Prétraitement de l'image, c. à d. traitement de l'information image sans se préoccuper de l'identité de l'image
• G06T 3/40 - Changement d'échelle d’images complètes ou de parties d’image, p. ex. agrandissement ou rétrécissement

Abrégé

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.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales

Abrégé

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.

Classes IPC  ?

• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux
• G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
• G01R 31/311 - Test sans contact utilisant des rayonnements électromagnétiques non ionisants, p. ex. des rayonnements optiques de circuits intégrés

Abrégé

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.

Classes IPC  ?

• B23Q 1/54 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec deux guidages en rotation uniquement
• B23Q 9/00 - Agencements pour le support ou le guidage d'appareils ou de machines portatifs pour le travail du métal

Abrégé

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.

Classes IPC  ?

• B23Q 1/28 - Moyens pour fixer les éléments coulissants dans la position désirée

Abrégé

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.

Classes IPC  ?

• G01N 27/90 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en utilisant les courants de Foucault
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails

Abrégé

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

Classes IPC  ?

• G05B 13/02 - Systèmes de commande adaptatifs, c.-à-d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
• G05B 23/02 - Test ou contrôle électrique

Abrégé

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.

Classes IPC  ?

• B29C 65/00 - Assemblage d'éléments préformésAppareils à cet effet
• B29C 65/56 - Assemblage d'éléments préformésAppareils à cet effet en utilisant des moyens mécaniques

Abrégé

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.

Classes IPC  ?

• B64C 1/06 - CadresLissesLongerons

Abrégé

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).

Classes IPC  ?

• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux
• H01L 23/34 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température

Abrégé

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.

Classes IPC  ?

• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c.-à-d. systèmes dans lesquels le signal vidéo n'est pas diffusé
• G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet

Abrégé

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.

Classes IPC  ?

• F16F 7/08 - Amortisseurs de vibrationsAmortisseurs de chocs avec surfaces de friction à déplacement rectiligne l'une le long de l'autre
• F16F 7/09 - Amortisseurs de vibrationsAmortisseurs de chocs avec surfaces de friction à déplacement rectiligne l'une le long de l'autre dans des amortisseurs du type cylindre-piston

Abrégé

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.

Classes IPC  ?

• B05D 5/08 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces pour obtenir des effets, finis ou des structures de surface particuliers pour obtenir une surface antifriction ou anti-adhésive
• C08F 290/06 - Polymères prévus par la sous-classe
• C08G 18/67 - Composés non saturés contenant un hydrogène actif
• C08K 3/36 - Silice
• C08K 9/06 - Ingrédients traités par des substances organiques par des composés contenant du silicium
• C09D 175/16 - Polyuréthanes comportant des liaisons non saturées carbone-carbone comportant des liaisons non saturées carbone-carbone terminales

Abrégé

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).

Classes IPC  ?

• B64C 30/00 - Avions supersoniques
• B64C 5/08 - Surfaces stabilisatrices montées sur ou supportées par les ailes
• B64C 5/10 - Surfaces stabilisatrices réglables

Abrégé

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.

Classes IPC  ?

• F16F 7/12 - Amortisseurs de vibrationsAmortisseurs de chocs utilisant une déformation plastique de ses organes
• B64C 1/06 - CadresLissesLongerons

Abrégé

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.

Classes IPC  ?

• H01Q 1/50 - Association structurale d'antennes avec commutateurs de terre, dispositions de descente d'antennes ou parafoudres
• H01H 83/10 - Interrupteurs de protection, p. ex. disjoncteur ou relais de protection actionné par des conditions électriques anormales autres que seulement les courants excessifs actionnés par une tension excessive, p. ex. pour la protection contre la foudre
• H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons

Abrégé

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.

Classes IPC  ?

• H02G 3/36 - Installations de câbles ou de lignes dans les murs, les sols ou les plafonds
• H02G 3/38 - Installations de câbles ou de lignes dans les murs, les sols ou les plafonds les câbles ou lignes étant installés dans des conduits ou des canalisations préétablis
• B64C 1/18 - Planchers
• B64D 45/00 - Indicateurs ou dispositifs de protection d'aéronefs, non prévus ailleurs
• B64C 1/06 - CadresLissesLongerons
• B64C 1/00 - FuselagesCaractéristiques structurales communes aux fuselages, voilures, surfaces stabilisatrices ou organes apparentés

Abrégé

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.

Classes IPC  ?

• B64C 1/06 - CadresLissesLongerons
• H02G 3/38 - Installations de câbles ou de lignes dans les murs, les sols ou les plafonds les câbles ou lignes étant installés dans des conduits ou des canalisations préétablis

Abrégé

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.

Classes IPC  ?

• B64C 1/18 - Planchers
• B29D 24/00 - Fabrication d'objets avec parois creuses

Abrégé

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.

Classes IPC  ?

• H03K 19/003 - Modifications pour accroître la fiabilité
• H01L 31/101 - Dispositifs sensibles au rayonnement infrarouge, visible ou ultraviolet

Abrégé

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).

Classes IPC  ?

• G01B 7/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer les déformations dans un solide, p. ex. au moyen d'une jauge de contrainte à résistance
• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
• G01S 17/06 - Systèmes déterminant les données relatives à la position d'une cible
• G01B 11/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la longueur, la largeur ou l'épaisseur
• G06T 7/00 - Analyse d'image
• G01B 5/30 - Dispositions pour la mesure caractérisées par l'utilisation de techniques mécaniques pour mesurer la déformation dans un solide, p. ex. indicateur de déformation mécanique
• G01B 11/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la déformation dans un solide, p. ex. indicateur optique de déformation
• G01L 1/22 - Mesure des forces ou des contraintes, en général en mesurant les variations de la résistance ohmique des matériaux solides ou des fluides conducteurs de l'électricitéMesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c.-à-d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance

Abrégé

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.

Classes IPC  ?

• B29C 70/34 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau et façonnage ou imprégnation par compression
• B29C 35/02 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation
• B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
• B29C 73/00 - Réparation d'articles faits de matières plastiques ou de substances à l'état plastique, p. ex. d'objets façonnés ou fabriqués par utilisation de techniques couvertes par la présente sous-classe ou la sous-classe

Abrégé

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.

Classes IPC  ?

• B29C 33/38 - Moules ou noyauxLeurs détails ou accessoires caractérisés par la matière ou le procédé de fabrication
• B29C 33/50 - Moules ou noyauxLeurs détails ou accessoires comportant des moyens ou conçus spécialement pour faciliter le démoulage d'objets, p. ex. des objets à contre-dépouille avec des moyens rétractables ou démontables élastiques
• B29C 70/44 - Façonnage ou imprégnation par compression pour la fabrication d'objets de longueur définie, c.-à-d. d'objets distincts utilisant une pression isostatique, p. ex. moulage par différence de pression, avec un sac à vide, dans un autoclave ou avec un caoutchouc expansible

Abrégé

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.

Classes IPC  ?

• B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires

Abrégé

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.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur
• G06Q 90/00 - Systèmes ou méthodes spécialement adaptés à des fins administratives, commerciales, financières, de gestion ou de surveillance, n'impliquant pas de traitement significatif de données
• G01R 31/28 - Test de circuits électroniques, p. ex. à l'aide d'un traceur de signaux

Abrégé

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.

Classes IPC  ?

• C09D 5/08 - Peintures anti-corrosion
• C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
• C23F 11/18 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs inorganiques
• C23C 18/12 - Revêtement chimique par décomposition soit de composés liquides, soit de solutions des composés constituant le revêtement, ne laissant pas de produits de réaction du matériau de la surface dans le revêtementDépôt par contact par décomposition thermique caractérisée par le dépôt sur des matériaux inorganiques, autres que des matériaux métalliques

Abrégé

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.

Classes IPC  ?

• B21D 7/12 - Cintrage des barres, profilés ou tubes avec une commande à programme
• B21D 7/14 - Cintrage des barres, profilés ou tubes combiné avec une mesure des courbures ou des longueurs
• G06F 17/50 - Conception assistée par ordinateur
• G01B 21/20 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer des contours ou des courbes, p. ex. pour déterminer un profil

Abrégé

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.

Classes IPC  ?

• B23K 20/12 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage la chaleur étant produite par frictionSoudage par friction

Abrégé

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.

Classes IPC  ?

• B23B 29/12 - Agencements particuliers des porte-outils
• B23B 47/34 - Agencements pour enlever les copeaux des trous pendant le perçageAgencements fixés à l'outil pour briser les copeaux
• B23B 37/00 - Alésage utilisant des vibrations de fréquence ultrasonore

Abrégé

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.

Classes IPC  ?

• B64C 1/06 - CadresLissesLongerons

Abrégé

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.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H01L 23/40 - Supports ou moyens de fixation pour les dispositifs de refroidissement ou de chauffage amovibles

Abrégé

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.

Classes IPC  ?

• B29C 70/30 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau

Abrégé

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.

Classes IPC  ?

• G06T 3/40 - Changement d'échelle d’images complètes ou de parties d’image, p. ex. agrandissement ou rétrécissement

Abrégé

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.

Classes IPC  ?

• B64C 1/40 - Insonorisation ou isolation calorifique

Abrégé

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.

Classes IPC  ?

• G01N 29/24 - Sondes
• G01N 29/28 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails pour établir le couplage acoustique

Abrégé

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.

Classes IPC  ?

• G06F 21/14 - Protection des logiciels exécutables contre l’analyse de logiciel ou l'ingénierie inverse, p. ex. par masquage

Abrégé

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.

Classes IPC  ?

• G06F 21/14 - Protection des logiciels exécutables contre l’analyse de logiciel ou l'ingénierie inverse, p. ex. par masquage