基于模糊经验方程的航空发动机机械故障诊断

Mechanical Fault Diagnosis for Aero-engine based on Fuzzy Empirical Equation

针对航空发动机机械故障发生概率增高问题,探讨了基于模糊故障经验方程的航空发动机机械故障诊断方法。针对飞行试验中的某型双转子涡扇发动机,根据实际飞行采集参数,结合工程经验,建立了其模糊经验方程。采用所建立的方程对该型发动机某次实际故障进行诊断,诊断结果与实际故障结论一致。

To solve the problems of mechanical fault occurred increasingly in aero-engine,fault diagnosis for aero-engine based on fuzzy empirical equation is discussed.The fuzzy empirical equation of the certain double rotor turbofan engine in flight test is built based on engineering experience and the acquisition parameter in flight test.The equation is utilized to diagnose the actual faults of aeroengine,and the diagnosis result is consistent with the actual fault.