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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。
Aero-engine mechanical fault diagnosis method based on fuzzy fault empirical equation is discussed in view of the increasing probability of aero-engine mechanical failure. Aiming at a certain type of double-rotor turbofan engine in flight test, the fuzzy empirical equation is established based on actual flight acquisition parameters and engineering experience. The established equation is used to diagnose a certain actual fault of the engine, the result of the diagnosis is consistent with the actual fault.