| 基于分层抽样法的可靠性灵敏度分析 |
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| 引用本文： | 张峰,唐樟春,刘永寿,岳珠峰.基于分层抽样法的可靠性灵敏度分析[J].计算力学学报,2012,29(6):841-846. |
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| 作者姓名： | 张峰 唐樟春 刘永寿 岳珠峰 |
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| 作者单位： | 西北工业大学工程力学系飞行器可靠性工程研究所,西安,710129 |
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| 基金项目： | 高等学校学科创新引智计划项目(B07050); 西北工业大学基础研究基金(JC20100232) 资助项目. |
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| 摘 要： | 提出基于分层抽样的可靠性灵敏度分析方法。该方法将变量空间分割成多个互斥子空间，根据子空间对可靠性灵敏度估计值贡献率的大小来分配子空间的抽取的样本量，这种抽样策略使得更多的样本来源于失效域，从而达到降低估计方差、提高了收敛速度的目的。本文还推导了基于分层抽样法的可靠性灵敏度估计值的方差和变异系数。三个算例显示出分层抽样在单模式、多模式并联、多模式串联结构可靠性灵敏度分析上的可行性和优越性。
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| 关 键 词： | 可靠性 可靠性灵敏度 分层抽样法 Monte Carlo法 失效概率 |
| 收稿时间： | 2011/9/22 0:00:00 |
| 修稿时间： | 2012/3/20 0:00:00 |
Stratified sampling algorithm based reliability sensitivity |
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| ZHANG Feng,TANG Zhang-chun,LIU Yong-shou and YUE Zhu-feng.Stratified sampling algorithm based reliability sensitivity[J].Chinese Journal of Computational Mechanics,2012,29(6):841-846. |
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| Authors: | ZHANG Feng TANG Zhang-chun LIU Yong-shou and YUE Zhu-feng |
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| Institution: | Institute of Aircraft Reliability Engineering,Department of Engineering Mechanics, Northwestern Polytechnical University,Xi'an 710129,China;Institute of Aircraft Reliability Engineering,Department of Engineering Mechanics, Northwestern Polytechnical University,Xi'an 710129,China;Institute of Aircraft Reliability Engineering,Department of Engineering Mechanics, Northwestern Polytechnical University,Xi'an 710129,China;Institute of Aircraft Reliability Engineering,Department of Engineering Mechanics, Northwestern Polytechnical University,Xi'an 710129,China |
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| Abstract: | |
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| Keywords: | reliability reliability sensitivity stratified sampling method Monte Carlo method failure probability |
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