因果分析与系统安全性风险评价方法

Cause-Effect Analysis and Method of Risk Assessment for System Safety

综合了故障树分析和事件树分析的方法，提出因果分析的框架，研究了基于因果分析建立事故脚本的方法。在此基础上，还对因果分析的概率风险评价方法进行研究，并利用该评价方法，对电机过热的安全性问题进行分析。

Framework of cause-effect analysis is suggested by combining the methods of FTA and ETA. Method for eatablishing the accident scenarios is studied according to this analysis. On this basis, method for risk probability assessment is provided, by which the safety problems in the overheat of electrical machinery are analyzed and the calculated results are obtained.