机械故障诊断学科的现状及发展

故障诊断学是近二十年发展起来的新学科，就目前发展的状况而言，已基本形成了自己的体系。本文从学科的角度，指明了本学科的基础是故障机理及故障特性研究，其基本方法是信号处理及特征提取。从技术与理论方法的角度描述了整个学科体系；对诊断理论和方法进行了分类；文中对目前发展的各种诊断理论和方法的出发点、特点、基本内容，不足之处以及发展趋势进行了较为详细的评述。最后，讨论了本学科的发展方向。

The State and Devclopment of The Mechanical Fault Diagnosis Subject at Present

Mechnical fault diagnosis is a developing new subject.In view of the developing state,it has formed it’s own system. The base of the subject is studying the fault mechanism and fault feature. The basic method is signal process and charactor abstractive method.This paper reviews thc idea,content,feature,disadvantage and future trend of the diagnosis theories and methods at present.Finally the fu-ture developmental trends of the subject is discussed briefly.