故障树定性和定量分析的算法

Algorithms for Qualitative and Quantitative Analysis of Fault Tree

本文从工程实际出发，提出了故障树定性和定量分析的算法。定性分析算法基于Ｆｕｓｓｌｌ下行法，它与素数法相结合，可以算出故障树的全割集和最小割集。定量分析算法以最小割集为媒介，根据最小割集的事件性质，采用不同的计算方法，可以计算出顶事件的发生概率、各底事件的结构重要度和概率重要度。

In this paper,the algorithms for qualitative and quantitative analysis of fault tree have been developed to meet the needs of engineering practice. Being basis of FUSSLL′S method and primenumber method, the algorithm for qualitative analysis of fault tree could be used to obtain cut sets of fault tree. The algorithm for quantitative analysis of fault tree could be used in the calculation of the probability of top event and structure importance and probability importance of every basic event with different calculation methods according to minimal cut sets.