| 基于离散变量的桁架结构截面优化及软件实现 |
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| 引用本文： | 杨涛,刘忠,周长顺.基于离散变量的桁架结构截面优化及软件实现[J].钢结构,2008,23(3):73-76. |
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| 作者姓名： | 杨涛 刘忠 周长顺 |
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| 作者单位： | 湘潭大学,土木工程与力学学院,湘潭,411105;湘潭大学,土木工程与力学学院,湘潭,411105;湘潭大学,土木工程与力学学院,湘潭,411105 |
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| 摘 要： | 以杆件横截面为设计变量，以结构重量为目标函数，采用基于离散变量的序列两级优化方法对桁架结构进行优化设计；在优化设计过程中采用了0阶修正，并且利用PCL语言在有限元软件MSC．NASTRAN和MSC．PATRAN上开发出了解决含应力约束和位移约束的桁架结构离散截面优化问题的程序。
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| 关 键 词： | 离散变量 结构优化 相对差商 PCL语言 二次开发 |
| 修稿时间： | 2007年12月5日 |
SIZE OPTIMIZATION DESIGN OF TRUSS STRUCTURES BASED ON DISCRETE VARIABLES AND SOFTWARE IMPLEMENTATION |
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| Yang Tao,Liu Zhong,Zhou Changshun.SIZE OPTIMIZATION DESIGN OF TRUSS STRUCTURES BASED ON DISCRETE VARIABLES AND SOFTWARE IMPLEMENTATION[J].Steel Construction,2008,23(3):73-76. |
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| Authors: | Yang Tao Liu Zhong Zhou Changshun |
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| Affiliation: | Yang Tao Liu Zhong Zhou Changshun (College of Civil Engineering , Mechanical,Xiangtan University Xiangtan 411105) |
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| Abstract: | Taking the sizes of cross sections as design variables and structure we ight as objective function,the size optimization design of truss structures cons idering the stress and displacement constraints is developed by means of two lev el algorithm based on discrete variables. At the end of every optimization cycle ,zero step modification is considered to improve the computational precision. Lo cal optimal solution is obtained. In addition,secondly development of optimum de sign program on MSC.PATRAN and MSC.... |
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| Keywords: | discrete variable structural optimization relative difference qu otient PCL language secondly development |
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