| 蚁群优化算法及其在可靠指标计算中的应用 |
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| 引用本文： | 韩宪军,武清玺,杨明珠. 蚁群优化算法及其在可靠指标计算中的应用[J]. 河海大学学报(自然科学版), 2007, 35(6): 664-667 |
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| 作者姓名： | 韩宪军 武清玺 杨明珠 |
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| 作者单位： | 河海大学土木工程学院,江苏,南京,210098;河海大学土木工程学院,江苏,南京,210098;河海大学土木工程学院,江苏,南京,210098 |
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| 摘 要： | 从可靠指标的几何意义出发,结合罚函数法,将结构可靠指标的求解问题转化成相应的无约束优化问题.在求解过程中,为避免因结构功能函数的高度非线性给求导运算等带来的复杂性,尝试用蚁群优化算法进行结构可靠指标的优化计算,推导了有关公式并编制了计算程序.实例应用表明,用蚁群优化算法进行结构可靠指标计算是可行的.
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| 关 键 词： | 工程结构 蚁群优化算法 可靠指标 |
| 文章编号： | 1000-1980（2007）06-0664-04 |
| 收稿时间： | 2007-01-23 |
| 修稿时间： | 2007-01-23 |
Ant colony optimization algorithm and its application to calculation of structural reliability index |
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| HAN Xian-jun,WU Qing-xi,YANG Ming-zhu. Ant colony optimization algorithm and its application to calculation of structural reliability index[J]. Journal of Hohai University (Natural Sciences ), 2007, 35(6): 664-667 |
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| Authors: | HAN Xian-jun WU Qing-xi YANG Ming-zhu |
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| Abstract: | From the geometric meaning of reliability index,the problem of structural reliability index was converted to the corresponding unconstrained optimization problem by use of the penalty function method.During the solving process,the ant colony optimization algorithm was adopted for optimal calculation of structural reliability index so as to avoid the complexity in derivation of the structural function induced by its high nonlinearity.Relevant formulas were derived and a computer program was compiled.Case studies show that the ant colony optimization algorithm is feasible for calculating the structural reliability index. |
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| Keywords: | engineering structure ant colony optimization algorithm(ACA) reliability index |
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