摘  要：本文对直流电动机主要故障表现特征进行总结,对相关的主要故障检测和诊断方法进行介绍和评述,提出直流电动机故障诊断的发展方向。
关键词：直流电动机;故障检测;故障诊断;专家系统

Abstract: This paper introduced a summary to the general faults in DC motor,presented the ways of fault detection and diagnosis and its development direction.
Key Words: DC motor;Fault detection;Fault diagnosis;Expert system