| 基于混合PSO算法的桁架动力响应优化 |
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| 引用本文： | 魏德敏,文星宇.基于混合PSO算法的桁架动力响应优化[J].振动与冲击,2011,30(5):174-178. |
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| 作者姓名： | 魏德敏 文星宇 |
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| 作者单位： | 1. 华南理工大学土木工程系，广州510640；2. 华南理工大学亚热带建筑科学国家重点实验室，广州510640 |
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| 摘 要： | 摘 要：本文针对以结构动力响应为约束，最小重量为目标的桁架拓扑优化问题，提出了一种将微粒群算法和优化准则法结合的混合PSO算法。利用优化准则法的迭代关系找出群体中适应度最好的微粒，将其作为特殊微粒，其他微粒的寻优采用PSO的基本进化规则，位移响应约束利用特殊微粒的灵敏度信息近似计算。算例的计算结果表明，混合PSO算法适用于受简谐荷载以及脉冲荷载作用桁架结构的拓扑优化。混合PSO的计算效率比PSO算法高，其优化效果比优化准则法好。
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| 关 键 词： | 混合PSO 动力响应优化 拓扑优化 位移响应约束 |
| 收稿时间： | 2009-9-21 |
| 修稿时间： | 2010-3-23 |
Dynamic response optimization for a truss structure based on hybrid PSO algorithm |
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| WEI De-min,WEN Xing-yu.Dynamic response optimization for a truss structure based on hybrid PSO algorithm[J].Journal of Vibration and Shock,2011,30(5):174-178. |
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| Authors: | WEI De-min WEN Xing-yu |
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| Affiliation: | 1. Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China; 2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China |
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| Abstract: | A hybrid algorithm was proposed for dynamic topology optimization of a truss structure.In optimization analyses the dynamic displacement responses of nodes were constrainted and the minimum weight of the truss structure was taken as the objective function.A particle having the best fitness from a swarm was chosen as the special particle,and it moved by means of iteration expressions in the optimality criterion method.The other particles complied with the evolution rules of PSO algorithm,and their displaceme... |
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| Keywords: | hybrid PSO algorithm dynamic response optimization topology optimization displacement response constraint |
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