The fault propagation disciplines of feedback system are inferred from its principle and its corresponding FRM. And the range of applications of EFRM-based FMEA is extended.

• 在分析反馈系统工作原理及其功能角色模型构造特点的基础上，提出了反馈系统的故障传播分析方法和技术，充实和扩展了功能角色模型的应用范围。