考虑底事件失效相关情况下的故障树分析方法研究

Fault tree analysis method based on failure dependence of bottom event

根据哈马邱尔算子的性质,给出了将故障树的全部最小割集转换成单一方式(并联或串联)的方法,然后再应用文献[3]的软件进行可靠度计算。这样,考虑了故障树底事件失效相关来进行的故障树分析,更贴近于现实,也为系统故障预见提供更科学的指导。

In this paper, according to the characteristics of Hamacher operator, the method of transferring the total minimum cut set of fault tree into the single form (parallel connection or series connection) is presented and then its reliability is calculated based on the reference 3. Therefore, the fault tree analysis (FTA), taking the ending events failure dependence of fault tree into considerations, is closer to the reality of research and provides more scientific directions to the forecast of system faults.