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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:力学与航空航天学院
学科:计算力学. 工程力学. 固体力学
办公地点:综合实验一号楼609
联系方式:weishengzhang@dlut.edu.cn
电子邮箱:weishengzhang@dlut.edu.cn
基于SAND列式的桁架结构优化问题序列线性规划算法
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发表时间:2022-10-10
发表刊物:工程力学
卷号:29
期号:3
页面范围:21-26
ISSN号:1000-4750
摘要:In this paper,a SLP(Sequential linear Programming) algorithm based on
SAND(Simultaneous Analysis and Design) formula is proposed.It is
different from the traditional practice of a linear expansion of
implicit response functions(e.g.displacement,stress etc.) at the
designed variable(e.g.cross sectional area of bar members).Taking a
truss structure as an example,using SAND formula,with both bar cross
sectional areas and node displacements as the design variables,a linear
approximation to the compatibility conditions using explicit bilinear
function is made and an LP sub-problem is constructed.By solving a
series of LP sub-problems,a best approximat solution for this
optimization problem can be obtained.Comparing to the SLP algorithm
under traditional optimization formula,this method has 2 advantages: The
choice of the move limit of the designed variable is easier;the error
involved in the linear approximation can be accurately estimated.Worked
examples demonstrate that this algorithm is able to obtain the
approximate optimized solution to the optimization problem in a fast yet
stable manner.
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