The invention provides a method and a system for aircraft engine fault detection, the method comprising: for each pressure parameter of a plurality of pressure parameters, determining a fault of the aircraft engine; a first air pressure signal, corresponding to the pressure parameter, of the first engine and a second air pressure signal, corresponding to the pressure parameter, of the second engine are obtained; when the difference value between the first air pressure signal and the second air pressure signal exceeds a preset threshold value, the pressure parameter is judged as an abnormal pressure parameter; determining a reference value for the abnormal pressure parameter based on the pressure parameters except the abnormal pressure parameter in the plurality of pressure parameters; determining a first difference value between the reference value and the first air pressure signal and a second difference value between the reference value and the second air pressure signal; and judging the air pressure signal corresponding to the larger one of the first difference value and the second difference value as a pressure signal fault.

    本发明提供了一种用于飞行器发动机故障检测的方法和系统,所述方法包括:对于多个压力参数中的每个压力参数,获取所述第一发动机与该压力参数相对应的第一空气压力信号和所述第二发动机与该压力参数相对应的第二空气压力信号;在所述第一空气压力信号与所述第二空气压力信号的差值超过一预设的阈值时,该压力参数被判定为异常压力参数;基于所述多个压力参数中除所述异常压力参数之外的压力参数确定针对所述异常压力参数的参考值;确定所述参考值与所述第一空气压力信号的第一差值、以及所述参考值与所述第二空气压力信号的第二差值;以及将所述第一差值和所述第二差值中的较大者所对应的空气压力信号判定为压力信号故障。


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    Title :

    System and method for aero-engine air pressure pipeline and signal fault detection


    Additional title:

    航空发动机空气压力管路及信号故障检测的系统和方法


    Contributors:
    ZHAO ZHENKE (author) / WANG CHUNXIAO (author) / TAO WENHUA (author) / LIANG HUI (author) / ZHU YUCHAO (author)

    Publication date :

    2022-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE



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