【摘要】 为减少FTA的NP困难,在充分研究故障树主要参数(最小割集、最小路集、不交化最小割集和不交化最小路集)之间内在联系的基础上,找到了它们间相互转化的方法,并通过割集矩阵的运算加以实现.这些转化方法,为减少NP困难、简化FTA开辟了新途径.更多还原

【Abstract】 In order to reduce nondeterministic polynominal (NP) difficulty in fault tree analysis (FTA), on the basis of studying internal relations of main parameters (minimum cut sets, minimum path sets, non-cross minimum cut sets and non-cross minimum path sets) in fault tree system , computation methods in FTA are defined by using Boolean algebra operation rule, and transformations of main parameters are performed by matrixing method.By means of parameterical transformation techniques,several new ways to analyze various fault trees are provided,and these ways are of great importance in the reduction of NP difficulty in FTA.更多还原