Particle Swarm Optimization Algorithm for Topological Optimization of Truss Structures
-
摘要: 为了解决有应力和位移约束的桁架结构的拓扑优化问题,将微粒群算法用于桁架结构拓扑优化.用罚函数法将应力和位移约束下的结构优化问题转化为无约束优化问题,用微粒群算法迭代计算.为了证明此方法的可行性,给出了2个具有应力和位移约束的桁架结构拓扑优化的算例.计算结果表明,微粒群算法与现有算法获得的桁架结构拓扑优化结果一致.Abstract: To solve the problem of topological optimization of truss structures with stress and displacement constraints,particle swarm optimization(PSO) algorithm was adopted.With this method,the penalty function approach is applied to turn the constrained optimization problem to a no-constrained optimization problem,and then the particle swarm optimization algorithm is used to iterative calculation.Two examples of topological optimization of truss structures with stress and displacement constraints were given to show the validity of this method.The results indicate that the identical results are got by PSO and another topological optimization algorithm.
-
Key words:
- particle swarm optimization /
- truss /
- penalty function /
- structural topology optimization
-
KENNEDY J,EBERHART R C.Particle swarm optimization[C]// In:Proc IEEE Int'l.Conf.on Neural Networks,Ⅳ.Piscataway:IEEE Service Center,1995:1942-1948.[2] 曾建潮,介婧,崔志华.微粒群算法[M].北京:科学出版社,2004:1-23,116-139.[3] 谢晓锋,张文俊,杨之廉.微粒群算法综述[J].控制与决策,2003,18(2):129-134.XIE Xiaofeng,ZHANG Wenjun,YANG Zhilian.Overview of particle swarm optimization[J].Control and Decision,2003,18(2):129-134.[4] 柴山,王跃方,刘书田.桁架结构拓扑优化设计可行域研究[J].力学季刊,2004,25(3):403-409.CHAI Shan,WANG Yuefang,LIU Shutian.A study on feasible domain in topology optimization of truss[J].Chiness Quarterly of Mechanics,2004,25(3):403-409.[5] 隋允康,于新,叶宝瑞.应力和位移约束下桁架拓扑优化的有无复合体方法[J].固体力学学报,2004,25(3):355-358.SUI Yunkang,YU Xin,YE Baorui.The topology optimization for truss structures with stress and displacement constraints based on the exist-null combined model[J].Acta Mechanics Solida Sinica,2004,25(3):355-358. -
点击查看大图
计量
- 文章访问数: 1593
- HTML全文浏览量: 50
- PDF下载量: 427
- 被引次数: 0
下载: