机械科学与技术2018，Vol.37Issue(5)：675-682,8.DOI:10.13433/j.cnki.1003-8728.2018.0504
二维桁架结构拓扑优化的特征线提取方法及算例分析
Feature-line Extraction Method for Two-dimensional Truss Structure Topology Optimization
摘要
Abstract
A truss structure topology optimization feature-line (axis of the turss) extraction method is proposed for the problem of the two-dimensional truss structure topology optimization manufacturing.The continuum structure is optimized based on the evolutionary structural optimization method (ESO).The center point coordinates of the topological area are extracted according to the truss topology optimization result.The topological area is divided based on the truss linear characteristics and then the topological area feature-line mathematical model is established.The truss nodes are determined and combined with the feature-line mathematical model and then the radius of the nodes merging area is introduced to establish the truss nodes position quadratic optimization mathematical model.Finally,the truss topology optimization result(feature-line) oriented to manufacturing is extracted based on the optimal truss node position.Three classical examples are used to verify the effectiveness of the feature-line extraction method.关键词
桁架结构优化/拓扑优化/特征线提取方法/面向制造/渐进结构优化方法(ESO)Key words
truss structure optimization/topology optimization/feature-line extraction method/oriented to manufacturing/evolutionary structure optimization (ESO) method分类
机械制造引用本文复制引用
程自然,颜健,彭佑多,刘永祥,彭黎..二维桁架结构拓扑优化的特征线提取方法及算例分析[J].机械科学与技术,2018,37(5):675-682,8.基金项目
国家自然科学基金(51641504)、湖南省自然科学基金项目(2016JJ2052)及湖南省研究生科研创新项目(CX2016B549)资助 （51641504）
