| 含模糊变量和区间变量的结构可靠性优化设计方法 |
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| 引用本文： | 乔心州,仇原鹰,盛英.含模糊变量和区间变量的结构可靠性优化设计方法[J].计算力学学报,2010,27(3):537-541. |
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| 作者姓名： | 乔心州 仇原鹰 盛英 |
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| 作者单位： | 1. 西安科技大学,机械工程学院,西安,710054;西安电子科技大学,电子装备结构教育部重点实验室,西安,710071
2. 西安电子科技大学,电子装备结构教育部重点实验室,西安,710071 |
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| 基金项目： | 教育部留学回国人员实验室基金 |
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| 摘 要： | 提出了基于能度可靠性理论的含模糊变量和区间变量的结构优化设计方法.运用能度可靠性理论建立了含模糊变量和区间变量的结构混合可靠性模型,采用结构的最大失效可能度作为混合模型的可靠性度量,给出最大失效可能度的计算方法,并以混合可靠性模型的最大失效可能度为约束条件建立了混合结构优化设计模型.实例计算表明了本文方法的有效性.
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| 关 键 词： | 结构可靠性优化 混合可靠性模型 失效可能度 能度可靠性 |
| 收稿时间： | 6/4/2008 12:00:00 AM |
Reliability-based optimization of structures with fuzzy and interval variables |
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| QIAO Xin-zhou,QIU Yuan-ying and SHENG Ying.Reliability-based optimization of structures with fuzzy and interval variables[J].Chinese Journal of Computational Mechanics,2010,27(3):537-541. |
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| Authors: | QIAO Xin-zhou QIU Yuan-ying and SHENG Ying |
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| Abstract: | A new reliability-based optimization method of structures with fuzzy and interval variables is presented. Based on possibilistic reliability theory, a hybrid reliability model of structures with fuzzy and interval variables is developed. The maximum failure possibility is utilized as the measurement of structural reliability with the variables. The calculation methods for the maximum failure possibility are given. Moreover, by regarding the hybrid model reliability as constraints, the reliability-based optimization model is established. A numerical example illustrates the feasibility and validity of the new method. |
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| Keywords: | structural reliability optimization hybrid reliability model failure possibility possibilistic reliability |
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