Airbus Helicopters

Southdary Beaud

Emmanuel Camhi

Laurent Martin

A method of failure simulation for an aircraft () having a power plant () with at least two turbine engines (), together the two engines develop an overall power, each engine () being capable of delivering at least one contingency power in order to compensate for a total failure of other engines (). The device serves during a failure simulation to modify the overall power delivered by the power plant, with this modification being performed with the help of first adjustment means (). Second adjustment means () serve to modify also the difference between the minimum power obtained during the simulated failure and the stabilized overall power, and also the time between said failure stabilizing on said overall power.

Method of simulating a failure on an aircraft

A regulator device () for reducing the risk of surging in a turbine engine () that includes a gas generator (), an air extractor (), and a mechanical power take-off device (). An engine computer () includes storage () that stores a plurality of acceleration regulation relationships, each acceleration regulation relationship corresponding to air extraction in a first range, and to mechanical power take-off in a second range. The regulator device () including a first measurement device () for measuring current air extraction, and a second measurement device () for measuring current mechanical power take-off, with the engine computer () controlling acceleration of the turbine engine () by implementing the acceleration regulation relationship corresponding to the current air extraction and to the current mechanical power take-off.

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Carpentras, France

Southdary Beaud