A MODIFIED SENSITIVITY FILTERING TECHNIQUE FOR THE SUPPRESSION OF CHECKERBOARD PATTERNS AND GRAY ELEMENTS

摘要：

To suppress checkerboard patterns and gray elements in topology optimization of continuum structures, a modified updating scheme for sensitivities information is proposed by using the updating technique of particle states in particle swarm optimization (PSO) algorithm for reference.This method can be used in conjunction with the solid isotropic microstructures with penalization (SIMP) material description.The optimization objective is the compliance of structure achieves minimal value.Topology optimization model of continuum structure is established basing on SIMP approach.This model is solved by using optimality criteria method.The validity of the proposed method and strategy are substantiated by several typical two-dimensional topology optimization problems.

关键词： Topology Optimization Sensitivity Analysis Particle Swarm Optimization

作者: Du Yixian Wang Wei Tian Qihua Fang Zifan

作者单位: College of Mechanical & Material Engineering,China Three Gorges University,443002,Yichang,China Hube College of Mechanical & Material Engineering,China Three Gorges University,443002,Yichang,China

会议类型: 国际会议

会议名称: The 7th China-Japan-Korea Joint Symposium on Optimization of Structural and Mechanical Systems 第七届中日韩结构和机械系统优化会议

会议地点: 黄山

会议语种:英文

页码: 1-6

在线出版日期: 2012-06-18（万方平台首次上网日期，不代表论文的发表时间）