基于APDL语言的网架结构优化设计

journal6 ›› 2008, Vol. 29 ›› Issue (2): 35-38.

基于APDL语言的网架结构优化设计

（1.西安建筑科技大学土木工程学院，陕西西安710055；2.北京交通大学土木建筑工程学院，北京100044）

出版日期:2008-03-25 发布日期:2012-05-25
作者简介:邢海东（1976－），男，河南荥阳人，博士研究生，主要从事钢结构研究.
基金资助:
湖南省自然科学基金资助项目（06JJ30040）

Optimum Design of Grid Structure Based on APDL

(1.School of Civil Eng.，Xi’an University of Architecture & Technology,Xi’an 710055，China；2.School of Civil Eng.& Arch.，Beijing Jiaotong University,Beijing 100044,China)

Online:2008-03-25 Published:2012-05-25

摘要/Abstract

摘要：以通用有限元分析软件Ansys的二次开发语言APDL为开发工具，以网架结构的杆件截面面积作为设计变量，以网架结构的总质量作为目标函数，并考虑网架的强度、稳定、刚度、挠度以及截面规格等约束条件，采用改进的一维搜索算法和满应力准则法，分刚度、应力两步骤对网架结构进行优化.工程实例表明，该优化设计原理简单，收敛速度快，Ansys的分析结果可直接作为优化设计结果使用.

关键词： 网架结构, 优化设计, APDL

Abstract: APDL,the re-development language of the common finite element analysis software ANSYS,was adopted as development tool.Member cross section areas of the grid structure were taken as the design variables.The total weight of the grid was considered as the objective function.The restrain conditions such as strength,stability,rigidity,deflection and cross section dimensions were considered.The improved one-dimensional search method and full-stress method were selected as the optimization method.The two steps,rigidity optimization and stress optimization,were taken as optimization process.The calculated results show that the optimal method has simple principle and good convergence rate.The result of Ansys can be directly used as the optimization of design.

Key words: grid structure, optimum design, APDL

邢海东, 郝际平, 徐国彬 . 基于APDL语言的网架结构优化设计[J]. journal6, 2008, 29(2): 35-38.

XING Hai-Dong, HAO Ji-Ping, XU Guo-Bin- . Optimum Design of Grid Structure Based on APDL[J]. journal6, 2008, 29(2): 35-38.