Method of simulating a failure on an aircraft
AssigneeAirbus Helicopters
InventorsSouthdary Beaud, Emmanuel Camhi
Life of this patent
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Abstract
A method of failure simulation for an aircraft (7) having a power plant (10) with at least two turbine engines (11, 12), together the two engines develop an overall power, each engine (11, 12) being capable of delivering at least one contingency power in order to compensate for a total failure of other engines (11, 12). 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 (20). Second adjustment means (30) 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.
Claims19
A method of simulating a failure for an aircraft having a power plant, the power plant having at least two turbine engines together developing an overall power, each engine being capable of delivering at least one contingency power level in order to compensate for a failure of at least one other engine, wherein a low value, selected from any of a plurality of values lying between a minimum value and a maximum value, for the overall power is set manually with the help of first adjustment means and the overall power is reduced to the low value in order to simulate the failure and display means is used to display at least one OEI (one engine inoperative) contingency rating corresponding to the low value of the overall power.
A failure simulator device for an aircraft, comprising:
- a power plant having at least two turbine engines together developing an overall power, each engine being capable of delivering at least one contingency power in order to compensate for a failure of at least one other engine;
- and
- one control unit for each engine, each control unit being connected to the corresponding engine and controlling its power;
- wherein the device comprises first adjustment means suitable for controlling the control units and for setting a low value, selected from any one of a plurality of values lying between a minimum value and a maximum value, of the overall power when simulating the failure;
- wherein the device further comprises display means to display at least one OEI (one engine inoperative) contingency rating corresponding to the low value of the overall power.
A method of simulating a failure for an aircraft having a power plant, the power plant having at least two turbine engines together developing an overall power, each engine being capable of delivering at least one contingency power level in order to compensate for a failure of at least one other engine, wherein a low value, selected from any of a plurality of values lying between a minimum value and a maximum value, for the overall power is set manually with the help of first adjustment means and the overall power is reduced to the low value in order to simulate the failure;
- wherein at least one characteristic for the passage of the overall power to the low value is set with the help of second adjustment means prior to lowering the overall power;
- wherein the low value for the overall power is reached, the overall power dropping down to a minimum power before increasing and stabilizing at the low value for the overall power, and the characteristics include a difference A between the minimum power and the low value for the overall power and a time T between the instant at which the failure is simulated and the instant at which the overall power stabilizes at the low level.
A failure simulator device for an aircraft, comprising:
- a power plant having at least two turbine engines together developing an overall power, each engine being capable of delivering at least one contingency power in order to compensate for a failure of at least one other engine;
- and
- one control unit for each engine, each control unit being connected to the corresponding engine and controlling its power;
- wherein the device includes first adjustment means suitable for controlling the control units and for setting a low value, selected from any one of a plurality of values lying between a minimum value and a maximum value, of the overall power when simulating the failure;
- wherein the device further includes second adjustment means suitable for controlling the control units and for setting at least one characteristic for the passage of the overall power to the low value for the overall power;
- wherein the low value for the overall power is reached, the overall power dropping down to a minimum power before increasing and stabilizing at the low value for the overall power, and the characteristics include a difference A between the minimum power and the low value for the overall power and a time T between the instant of the simulated failure and the instant at which the overall power stabilizes at the low value.
Dependencies are inferred from the claim text.