力学映射下板壳结构的截面离散优化设计  

DISCRETE OPTIMIZED DESIGN OF SHELL STRUCTURES BASED ON MECHANICS MAPPING

作　　者：隋允康[1] 袁晓兵[1] 叶宝瑞[1] 杜家政[1] 

机构地区：[1]北京工业大学工程数值模拟中心,北京100022

出　　处：《工程力学》2006年第8期1-5,11,共6页Engineering Mechanics

基　　金：国家自然科学基金委(10472003);北京市自然科学基金委(3042002);北京市教委(KM200410005019)项目资助;美国MSC公司资助课题

摘　　要：依据力学映射的方法把离散变量优化问题转换为连续变量优化问题,通过在连续优化最优解附近构造两节模型,采用无穷小单元的无穷组合方法和变量连接术对板壳结构进行优化。同时在MSC公司的Nastran软件平台上利用其PCL语言开发出优化模块,并进行了算例的优化设计。Discrete optimization is converted into continuous optimization using mechanics mapping. A two-node model is constructed close to the optimal result of continuous optimization. The optimization of shell structures is thus achieved using variable linking and the infinitesimal multiple-node element. Meanwhile discrete optimization module is developed with PCL language based on Nastran software and several examples are optimized.

关 键 词：板壳结构 离散优化 力学映射 PCL语言 Nastran软件 

分 类 号：O34[理学—固体力学]