一种故障树模糊重要度分析的新方法

A New Method of the Importance Analysis of FTA

本文在经典故障树重要度分析方法的基础上，引入模糊集合理论，对基于故障树各底事件发生概率为模糊数情形的重要度分析方法作了研究，最后给出了一个应用实例。

In this paper,based on conventional importance analysis of FTA,we present a new importance analysis of FTA where each elementary event's probability is considered as fuzzy number after the introduction to extension principle in fuzzy mathematics. Finally, an example is given.