Abstract:
An elastic device for coupling between an aircraft landing gear wheel and a coaxial motorization member for motorization of the wheel. The elastic device comprises a plurality of arms to be rotationally coupled to the motorization member adjacent a first radially inner end and which are to be linked to the wheel adjacent their radially outer opposite end, the arms being substantially rigid in a plane perpendicular to the rotational axis of the wheel and flexible in directions substantially transverse to the plane.
Abstract:
This disclosure relates to a method for the nondestructive testing, using laser ultrasonics, of a composite part having a fibrous reinforcement in a resin that optically scatters the laser, includes: a) taking a measurement of the thickness of the resin of the part on the surface that is illuminated during the laser shot, which is capable of generating a thermoelastic effect in said resin and which is referred to as an ultrasonic laser shot; b) adjusting 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 at the power determined during step b). The device used for implementing the method comprises a combined photoacoustic imaging and low time-coherence interferometry (OCT) system.
Abstract:
A front engine attachment, intended to fix an engine to a structure of an aircraft, includes a first attachment including a base intended to be fixed to the structure, a first fixture articulated on the base, two first connecting rods, each being articulated by a first end to the engine and by a second end to the fixture, and a first cylindrical nose mounted on the base. The front engine attachment includes a second attachment including a cradle including an orifice into which the cylindrical nose is fitted, and a second cylindrical nose being threaded into a piercing of the engine, and two second connecting rods, each being intended to be articulated by a first end to the engine, and by a second end to the cradle.
Abstract:
A method for detecting a spacing defect between two adjacent strands of a layer of a fiber fabric includes displacement of an inductive sensor relative to the fiber fabric, and identification of a defect based on a signal generated by the inductive sensor. The invention also relates to a device for its implementation.
Abstract:
Method and monopole antenna for making uniform the radiation of the antenna, when disposed inside a radome. According to the invention, on the surface of the monopole antenna is formed a protruding longitudinal ridge which is disposed at least approximately opposite an area of the radiating pattern of the assembly radome (1)-monopole antenna having a reduced gain in comparison with the radiating pattern of said monopole antenna alone.
Abstract:
Methods and devices for automatically managing audio air control messages on an aircraft are described. The device comprises a unit for automatically transcribing an audio message received on board an aircraft into a textual message, a unit for automatically processing the textual message in order to extract all the indications included in this message, and a unit for automatically displaying, for each extracted indication, on at least one screen of the aircraft cockpit, an information message relating to the indication and a validation request for the pilot.
Abstract:
The system comprises at least one lift generator element that is able to modify directly the lift of the aircraft and means for defining a deflection instruction upon actuation by a pilot of the aircraft of a control column of the aircraft generating a vertical load factor control value and applying it to an elevator and simultaneously defining a command instruction and applying it to the lift generator element to generate a direct lift.
Abstract:
A method and device for determining and presenting cost impacts generated by lateral route deviations of an aircraft. The device includes a computation unit for determining different flight trajectories, called alternative trajectories, each of which is offset laterally in the horizontal plane relative to a reference trajectory, notably the current trajectory of the aircraft, and a computation unit configured to compute, for each of the alternative trajectories, an associated overall cost which provides an indication of the cost generated by a flight of the aircraft along this alternative trajectory, the device also includes a display unit configured to present, on a navigation screen, indication elements which provide indications concerning the position and the associated overall cost for at least some of the alternative trajectories.
Abstract:
An aircraft nacelle comprising a spacing system to maintain two cowls spaced apart. A nacelle comprises two cowls each having a lower edge and an indexer in the region of the lower edge, the two cowls being mounted to be movable in terms of rotation about an opening axis between a closed position and an open position, a spacing system comprising a base fixed to a fixed portion of the nacelle. For each cowl, a lever which is independent of the lever associated with the other cowl and which has a housing in which the indexer is received in a closed position, and a stop against which the indexer is positioned in an open position, the lever being movable in terms of rotation on the base between an engagement position and a disengagement position, and for each lever, a return intended to urge the lever into the engagement position.
Abstract:
A method and device for automatically determining an optimized approach and/or descent profile for an aircraft are provided. The device comprises means for optimizing an approach and/or descent profile of an aircraft avoiding long and steep geometric segments, the device to this end inserting an idle segment, if it satisfies the restrictions, in the profile relating to the descent phase and/or to the approach phase, wherein said idle segment can be followed by a geometric segment.