| 基于可能性理论的结构模糊可靠性方法 |
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| 引用本文： | 郭书祥,吕震宙,等.基于可能性理论的结构模糊可靠性方法[J].计算力学学报,2002,19(1):89-93. |
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| 作者姓名： | 郭书祥 吕震宙 |
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| 作者单位： | 1. 空军工程大学,工程学院力学教研室,陕西,西安,710038
2. 西北工业大学,飞机工程系,陕西,西安,710072 |
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| 基金项目： | 国家自然科学基金 ( 5 95 75 0 40，5 9775 0 32 )，航空基金 ( 0 0 B5 30 10 )资助项目 |
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| 摘 要： | 利用模糊变量描述结构的不确定性 ,基于可能性理论和模糊区间分析 ,依据基于区间分析的非概率可靠性方法 ,建立了用于模糊结构和系统的能度可靠性模型。该模型可给出模糊可靠性指标的可能性分布和结构失效的可能性度量 ,并提供更多的关于结构安全程度的有用信息 ,且应用简便。算例分析说明了文中方法的应用
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| 关 键 词： | 模糊变量 能度可靠性 可能度 结构可靠性 |
| 文章编号： | 1007-4708(2002)01-0089-05 |
| 修稿时间： | 2000年4月11日 |
A fuzzy reliability approach for structures in the possibility context |
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| Guo Shuxiang,Lv Zhenzhou,Feng Lifu.A fuzzy reliability approach for structures in the possibility context[J].Chinese Journal of Computational Mechanics,2002,19(1):89-93. |
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| Authors: | Guo Shuxiang Lv Zhenzhou Feng Lifu |
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| Abstract: | In this paper, the uncertainty structures are described by the fuzzy variables. Based on the fuzzy interval analysis and the non-probabilistic reliability method provided by authors, a theory of fuzzy reliability for mechanical and structural systems in the possibility context is established in this paper. An independent fuzzy index of reliability possibility and a measure of failure are proposed to measure the safety of fuzzy structures or systems. The developed procedure is easy to implement, and some more useful information can be offered for the evaluation of structural reliability. A numerical example is given to illustrate the applicability and effectiveness of the proposed procedure. |
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| Keywords: | fuzzy variable possibilistic reliability possibility structural reliability |
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