| 基于免疫算法的岩土工程可靠度分析 |
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| 引用本文： | 郑俊杰,郭嘉,李福豪.基于免疫算法的岩土工程可靠度分析[J].岩土工程学报,2007,29(5):785-788. |
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| 作者姓名： | 郑俊杰 郭嘉 李福豪 |
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| 作者单位： | 华中科技大学岩土与地下工程研究所；新加坡国立大学土木系 湖北武汉430074；湖北武汉430074；新加坡119223； |
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| 摘 要： | 基于免疫算法原理和可靠度指标的几何涵义,提出了计算岩土工程可靠度指标和设计验算点的全局优化算法。该方法模拟了生物免疫系统,其主要步骤包括:B细胞与抗原之间的亲和度计算与选择、B细胞的克隆、变异和记忆细胞的产生等。对于功能函数的非线性和复杂性,避免了繁复的求导数工作。通过两个工程实例,证明了本文提出的方法进行岩土工程可靠度分析的有效性。
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| 关 键 词： | 免疫算法 遗传算法 可靠度 岩土工程 非线性功能函数 |
| 文章编号： | 1000-4548（2007）05-0785-04 |
| 修稿时间： | 2006-04-11 |
Immune algorithm for reliability analysis of geotechnical engineering |
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| ZHENG Jun-jie,GUO Jia,LEE Fook Hou.Immune algorithm for reliability analysis of geotechnical engineering[J].Chinese Journal of Geotechnical Engineering,2007,29(5):785-788. |
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| Authors: | ZHENG Jun-jie GUO Jia LEE Fook Hou |
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| Affiliation: | 1.Institute of Geotechnical and Underground Engineering Huazhong University of Science and Technology Wuhan 430074 China 2.Department of Civil Engineering National University of Singapore Singapore 119223 Singapore |
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| Abstract: | Based on the immune algorithm and geometric implication of the reliability index,a global optimization method was put forward to calculate the reliability index.The algorithm simulated the natural process of biological immune systems,and the basic steps of the algorithm included: computing affinity between the B-cells and the antigen and selecting;cloning and mutating of the B-cells and producing of memory cells etc.By this method,reliability of the nonlinear and complex performance function of geotechnical engineering could be obtained without derivation.It was shown by two practical cases that the present method was reliable and accurate in the reliability analysis of geotechnical engineering. |
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| Keywords: | immune algorithm genetic algorithm reliability geotechnical engineering nonlinear performance function |
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