Airbus Helicopters

Lohr Industrie

Herve Morel

Jonathan Rodriguez

Nicolas Queiras

Stephane Cerqueira

Jeremy Jouve

A method for checking a level of damage of at least one part of an aircraft. According to the disclosure, such a method comprises at least: a collection step for receiving data representative of measurements of at least one flight parameter, the data being generated during a mission of the aircraft by at least one embedded sensor; a projection step for projecting points onto a map in order to form an image point; an identification step for identifying, for each image point, an image zone in which the image point is located; and an analysis step for statistically analyzing the identified image zones and determining the level of damage of the at least one aircraft part.

Method and system for checking a level of damage of at least one aircraft part, and associated aircraft

A method of analyzing a vibratory signal derived from rotation of at least one moving part belonging to a rotary mechanism forming all or part of a drive train for transmitting drive torque, the rotary mechanism being fitted to an aircraft and the method comprising at least one first measurement step including measuring vibration in at least one direction and generating a vibratory signal representative of the operation of the rotary mechanism as a function of time, the first measurement step being performed by means of at least one vibration sensor; and at least one second measurement step including measuring an angular position of the moving part, the moving part having at least one degree of freedom to move in rotation about a respective axis of rotation Z. Such an analysis method makes it possible to determine at least one usable range for the vibratory signal.

Method of analyzing a vibratory signal derived from rotation of at least one moving part belonging to a rotary mechanism

A method for monitoring and detecting the formation of damage in at least one moving part of a rotary mechanism forming all or part of a kinematic transmission chain of an engine torque, the rotary mechanism equipping an aircraft, the method being implemented by a monitoring and detection system including at least one vibration sensor for measuring accelerations in at least one direction and generating a vibration signal as a function of time, the at least one vibration sensor being secured to a fixed casing of the aircraft and arranged near the rotary mechanism, at least one measuring member for measuring an angular position of the at least one moving part, each moving part including at least one degree of rotational freedom around a rotation axis.

Method for monitoring and detecting the formation of degradation in at least one moving part of a rotating mechanism and associated system

A method of controlling a deflection angle of pitching stabilizer means for an aircraft. The method includes a preliminary stage for preparing at least one control relationship delivering a setpoint angle that is to be reached by the deflection angle as a function of at least one flight parameter of the aircraft and of an incidence parameter of the pitching stabilizer means. During an operational stage an operational stage (STP), a 'flight' value is determined for each of the flight parameters, a 'setpoint' value is determined for the incidence parameter, a setpoint angle is determined by inputting the flight values and setpoint value into the control relationship, and at least one actuator is actuated in order to cause the deflection angle of the pitching stabilizer means to reach the setpoint angle.

Advanced control relationship for a deflectable stabilizer

The present invention relates to a mechanical assembly () provided with a sun gear () and a plurality of planet gears () co-operating with said sun gear (). Each planet gear () includes a vibration sensor () forming part of structural anomaly monitoring means, said monitoring means being provided with a control member () that communicates with each vibration sensor () in order to receive a measurement signal coming from each vibration sensor () in order to enable anomaly monitoring to be performed.

Mechanical assembly provided with means for monitoring for a structural anomaly, a gearbox provided with such a mechanical assembly, and a method of monitoring for a structural anomaly

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Lamanon, France

Herve Morel