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Method for monitoring a no-back device of an adjustable horizontal trim actuator, corresponding system and aircraft
Method for monitoring a no-back device of an adjustable horizontal trim actuator, corresponding system and aircraft
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机译:监控可调水平微调致动器的无后退装置的方法,相应的系统和飞机
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摘要
A method and a system for monitoring an actuator equipped with a no-back device or no-back brake, particularly an adjustable horizontal trim actuator provided in aircraft, the method including the steps of: determining a value representative of mechanical work produced by the actuator and comparing the determined value with ranges of values so as to detect a dysfunctioning of the said no-back device. If the actuator is a screw/nut type with a hydraulic motor, the value representative of the mechanical work is determined from an algebraic velocity of the motor and an algebraic differential of hydraulic pressure at terminals of the motor. A negative value corresponding to negative mechanical work then identifies a failure of the no-back device.
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