| 基于PSO算法的结构损伤检测研究 |
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| 引用本文： | 熊建辉,万祖勇.基于PSO算法的结构损伤检测研究[J].武汉科技大学学报(自然科学版),2006,29(4):415-418. |
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| 作者姓名： | 熊建辉 万祖勇 |
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| 作者单位： | 1. 武汉科技大设计研究院,湖北,武汉,430070
2. 上海城建建设实业集团,上海,200081 |
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| 摘 要： | 结构损伤检测问题常常可转化为数学上的约束优化问题。采用粒子群算法（PSO）求解约束优化问题。可求解结构损伤检测问题。首先介绍基本粒子群算法，然后建立结构损伤检测问题的数学模型，采用悬臂梁单损伤和多损伤的数值仿真研究，验证了粒子群算法求解结构损伤检测问题的可行性，最后针对实际结构振型测试时振型的非完备性，直接利用非完备振型，求解损伤检测问题，数值仿真结果表明，利用非完备振型，仍可得到较好畴检测结果。
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| 关 键 词： | 粒子群算法 损伤检测 约束优化 悬臂梁 |
| 文章编号： | 1672-3090(2006)04-0415-04 |
| 收稿时间： | 2006-02-24 |
| 修稿时间： | 2006年2月24日 |
Structural Damage Detection Based on PSO |
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| XIONG Jian-hui,WAN Zu-yong.Structural Damage Detection Based on PSO[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2006,29(4):415-418. |
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| Authors: | XIONG Jian-hui WAN Zu-yong |
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| Institution: | 1. Wuhan University of Science and Technology, Wuhan 430070, China; 2. Shanghai Citi-Raise Construction Group, Shanghai 200081, China |
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| Abstract: | Structural damage detection can often be converted into the problem of constrained optimization.Since the particle swarm optimization(PSO) algorithm is effective for the constrained optimization problem,it can also be a useful method for structural damage detection.The theory of PSO is first explained in this paper,and then the mathematic model of structural damage detection is proposed.The numerical simulation of a cantilever,in both single and multi damage,shows that PSO is valid for structural damage detection.In light of the incompletion of model shapes of the real structure,the incomplete model is used to calculate the objective function.The results suggest that the method doesn't need the reduction of the finite elemental model and the model shape expansion,and is successful for structural damage detection. |
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| Keywords: | PSO structural damage detection constrained optimization cantilever beam |
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