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基于重要度的系统可靠性分配方法
引用本文:何明礼,向晓东,郭尹亮.基于重要度的系统可靠性分配方法[J].安全与环境工程,2009,16(4):62-65.
作者姓名:何明礼  向晓东  郭尹亮
作者单位:1. 武汉科技大学冶金资源高效利用与造块湖北省重点实验室,武汉,430081
2. 东北大学资源与土木工程学院,沈阳,110004
摘    要:将系统的可靠性分配理论与故障树分析方法相结合,提出按故障树中各个基本事件(元件)的重要度大小进行可靠性分配的新方法.该方法可靠度的分配过程分两步:首先按可靠性再分配原理将系统的可靠度分配到各个最小割集;然后将需要调整可靠度的最小割集看成一个子系统,将最小割集的可靠度按基本事件重要度的大小分配到各个基本事件,即所谓二次分配模型.该方法不仅适用于仅有串、并联的简单系统,而且能够解决具有桥联结构的复杂系统的可靠性分配问题.

关 键 词:可靠性分配  故障树分析法  复杂系统  重要度  最小割集

New Approach on System Reliability Distribution by Component Importance in FTA
HE Ming-li,XIANG Xiao-dong,GUO Yin-liang.New Approach on System Reliability Distribution by Component Importance in FTA[J].Safety and Environmental Engineering,2009,16(4):62-65.
Authors:HE Ming-li  XIANG Xiao-dong  GUO Yin-liang
Institution:1.Hubei Key Laboratory for Efficient Utilization and Agglomeration of MetallurgicMineral Resources;Wuhan University of Science and Technology;Wuhan 430081;China;2.College of Resources and Civil Engineering;Northeastern University;Shenyang 110004;China
Abstract:The reliability distribution of complex system is one of unsolved issues in system safety engineering.In this paper,the Fault Tree Analysis(FTA) is introduced into the system reliability distribution.It would be more reasonable to distribute the reliability from system to basic events(components) according to the value of the component importance.There are two steeps to achieve the reliability distribution.First,the target reliability of a system is distributed to all the minimum cut sets based on reliabili...
Keywords:reliability distribution  FTA  complex system  component importance  minimum cut set  
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