| 不完全共因失效系统动态故障树模型分析方法 |
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| 引用本文： | 王家序,周青华,肖科,秦毅,黄彦彦.不完全共因失效系统动态故障树模型分析方法[J].系统工程与电子技术,2012,34(5):1062-1067. |
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| 作者姓名： | 王家序 周青华 肖科 秦毅 黄彦彦 |
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| 作者单位： | 1. 重庆大学机械传动国家重点实验室， 重庆 400040；2. 重庆大学材料科学与工程学院， 重庆 400040 |
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| 基金项目： | 国家自然科学基金(50735008,50905189);机械传动国家自主科研项目;中央高校基本科研业务费科研专项“研究生科技创新基金”(CDJXS11110012);重庆市百名杰出科技领军人才培养计划资助课题 |
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| 摘 要： | 提出了不完全共因失效的概念，认为共因只能以一定概率作用于共因失效组的元件上，并产生一定程度的损伤。介绍了动态故障树分析方法常用的逻辑门结构，并在此基础上引入了新的逻辑门结构用于对不完全共因失效进行有效描述。指出了目前用于求解不完全共因失效系统动态故障树模型的马尔可夫链方法存在的不足，修正了现有研究给出的马尔可夫链状态转移图，并提出不完全共因失效系统失效概率的通用公式。最后给出应用实例，证明该方法的有效性。
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| 关 键 词： | 可靠性 共因失效 动态故障树 马尔可夫链 逻辑门 |
Dynamic fault tree model analysis of systems subjected to incomplete common-cause failure |
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| WANG Jia-xu
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ZHOU Qing-hua
,
XIAO Ke
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QIN Yi
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HUANG Yan-yan.Dynamic fault tree model analysis of systems subjected to incomplete common-cause failure[J].System Engineering and Electronics,2012,34(5):1062-1067. |
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| Authors: | WANG Jia-xu ZHOU Qing-hua XIAO Ke QIN Yi HUANG Yan-yan |
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| Institution: | 1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400040, China；;
2. College of Materials Science and Engineering, Chongqing University, Chongqing 400040, China |
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| Abstract: | The conception of incomplete common-cause failure(ICCF) is proposed,and the common-cause is considered to affect components in a common-cause group only with a certain probabilities accompanied with a certain degrees of damage.The common logic gates of a dynamic fault tree analysis method are introduced,and based on it,a new logic gate is introduced for describing ICCF efficiently.Moreover,the problem existing in the Markov chain method of dynamic fault tree model of systems subjected to ICCF is pointed out,the state transition diagram is revised,and the reliability analytical formula of systems subjected to ICCF is proposed.The availability of the proposed approach is illustrated by a quantitative analysis of an example system. |
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| Keywords: | reliability common-cause failure(CCF) dynamic fault tree(DFT) Markov chain(MC) logic gate |
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