过去几十年中,故障分析与诊断方法的研究得到了飞速发展,出现了一些新的理论与方法。本文对基于信号处理的方法、基于解析模型的方法和基于知识的智能诊断方法等发动机故障诊断方法进行了逐一说明,并介绍了近年来航空发动机故障诊断技术的现状及发展趋势。 In the past few decades, the research on fault analysis and diagnosis method has been developed rapidly, and some new theories and methods have appeared. In this paper, the method of engine fault diagnosis based on signal processing method, analytical model-based method and knowledge-based intelligent diagnosis method are described one by one. The current status and development trend of aero-engine fault diagnosis technology in recent years are introduced.