A Hybrid Fault Tree Based on Average Chance and its Applications
This paper proposes a method to construct and analyze a hybrid fault tree based on average chance of a random fuzzy event.If the base event is obtained by the reliability manual,the fault rate of the tree is represented by a determined number.If the base event is obtained by the expert experience but not the statistics data,the fault rate of the tree is represented by a fuzzy variable.If the base event has a probability distribution with undetermined parameters,the fault rate of the tree is represented by a random fuzzy variable.Then average chance of the top event is calculated by hybrid simulation.At last,an example on internal-combustion engine is employed to illustrate the feasibility and efficiency of the fault tree.
fault tree hybrid fault tree fuzzy variable random fuzzy variable average chance
Yufu Ning Jianjun Liu
Department of Computer Science,Dezhou University,Dezhou 253023,China;Uncertainty Theory Laboratory,Dezhou University,Dezhou 253023,China
国内会议
开封
英文
247-252
2012-05-25（万方平台首次上网日期，不代表论文的发表时间）