| 工程结构可靠度指标计算的混沌搜索方法 |
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| 引用本文： | 徐军,郑颖人.工程结构可靠度指标计算的混沌搜索方法[J].工程力学,2002,19(3):6-9. |
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| 作者姓名： | 徐军 郑颖人 |
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| 作者单位： | 后勤工程学院军事土木工程系,重庆,400041 |
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| 摘 要： | 基于可靠度指标b的几何涵义提出了一种用混沌搜索工程结构可靠度指标和设计验算点的新方法该方法利用混沌内在的随机性与遍历性进行求解最终获得全局最优算例结果表明该方法简单实用性能良好能够处理基本随机变量的非正态分布和变量之间的相关性是解决非线性功能函数可靠度问题的有效途径
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| 关 键 词： | 混沌 可靠度指标 工程结构 非线性功能函数 变量相关 |
| 文章编号： | 1000-4750(2002)03-006-04 |
| 修稿时间： | 2000年11月27 |
CHAOTIC SEARCH METHOD FOR CALCULATION OF RELIABILITY INDEX OF ENGINEERING STRUCTURES |
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| XU Jun,ZHENG Ying-ren.CHAOTIC SEARCH METHOD FOR CALCULATION OF RELIABILITY INDEX OF ENGINEERING STRUCTURES[J].Engineering Mechanics,2002,19(3):6-9. |
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| Authors: | XU Jun ZHENG Ying-ren |
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| Abstract: | In this paper, a new method for calculation of the reliability index and the test point is developed based on chaotic search. The optimization problem is solved based on the ergodicity and intrinsic randomness of chaos. Numerical results show that the new method is simple and effective. It is a new way to solve reliability problem of nonlinear performance functions. It can deal with problem with abnormal distribution of basic random variables or the correlation between variables. |
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| Keywords: | chaos reliability index engineering structures nonlinear performance function correlation of variables |
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