| 引用本文: | 周经伦,刘波,孙权.非单调关联故障树顶事件失效概率的新算法.[J].国防科技大学学报,1999,21(2):104-107.[点击复制] |
| Zhou Jinglun,Liu Bo,Sun Quan.A New Algorithm for Calculating Top-Event Failure Probability of Non-coherent Fault Tree[J].Journal of National University of Defense Technology,1999,21(2):104-107[点击复制] |
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| 非单调关联故障树顶事件失效概率的新算法 |
| 周经伦, 刘波, 孙权 |
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(国防科技大学 系统工程与数学系 湖南 长沙 410073)
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| 摘要: |
| 提出了一种计算非单调关联故障树顶事件失效概率的新方法, 其基本思想是利用BDD进行故障树中顶事件的不交化工作, 可避免求PIS和PIS的最小覆盖的运算过程, 为有效解决其运算的NP困难问题提供了一条新的途径。 |
| 关键词: 非单调关联故障树, 顶事件失效概率, BDD, FTA |
| DOI： |
| 投稿日期：1998-09-14 |
| 基金项目: |
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| A New Algorithm for Calculating Top-Event Failure Probability of Non-coherent Fault Tree |
| Zhou Jinglun, Liu Bo, Sun Quan |
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(Department of System Engineering and Mathematics, NUDT, Changsha, 410073)
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| Abstract: |
| Calculating Top-Event failure probability is an important aspect of non-coherent FTA (Fault Tree Analysis). Because of the complexity of non-coherent system, all existing algorithms can't satisfy the requirements of exactness and speediness in application. In this article, we adopt a new algorithm for calculating Top-Event failure probability of non-coherent fault tree, which is based on BDD to decompose Top-Event of the fault tree and avoid seeking PIS and the smallest cover of PIS. So the new algorithm provides a new method for solving the NP problem effectively. |
| Keywords: non-coherent fault tree, top-event failure probability, BDD, FTA |
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