计算力学学报2018，Vol.35Issue(1)：1-6,6.DOI:10.7511/jslx20161126001
柔性伸缩蒙皮支撑结构的多目标拓扑优化
Multi-objective topology optimization of support structure for flexible telescope skin
摘要
Abstract
NSGA-Ⅱ with connectivity analysis is employed for the multi-objective topology optimization of the support structure for flexible telescope skin,in which bit-matrix is used as the representation of a chromosome.The objective functions of multi-objective topology optimization are established by analyzing the optimization target of the support structure.The design domain is discretized by hexagon and the mapping between design domain and the bit-matrix is established subsequently.In order to improve the efficiency,the connectivity analysis is put forward.The objectives such as the performance of in-plane and out-of-plane of the feasible individuals are obtained by FEA,and the NSGA-Ⅱ is realized by penalizing the infeasible individuals.A sequence of the feasible configurations of the support structure is obtained finally.It can be seen from the results that the method in this paper can provide feasible and effective solutions for multi-objective topology optimization of the support structure for flexible telescope skin and also solve other multi-objective topology optimization problems in 2D.关键词
拓扑优化/多目标优化/柔性蒙皮/伸缩变形/遗传算法Key words
topology optimization/multi-objective optimization/flexible skin/telescope morphing/genetic algorithm分类
航空航天引用本文复制引用
纪斌,金栋平..柔性伸缩蒙皮支撑结构的多目标拓扑优化[J].计算力学学报,2018,35(1):1-6,6.基金项目
国家自然科学基金(91016022,91216103) （91016022,91216103）
装备预研基金(6140210010202) （6140210010202）
江苏高校优势学科建设工程资助项目. （）
