郭东明

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:机械工程学院

电子邮箱:guodm@dlut.edu.cn

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Topology optimization for stable non-linear structures

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论文类型:期刊论文

发表时间:2002-01-01

发表刊物:International Conference on Mico and Nano Systems (ICMNS 2002)

收录刊物:SCIE、CPCI-S、Scopus

卷号:3

期号:3-4,SI

页面范围:589-593

ISSN号:1565-1339

摘要:Linear elastic analysis is often used in the inner loop of topology optimization procedures. In order to design stable structures that avoid buckling, nonlinear structural analysis has to be considered, i.e., analysis that incorporates the effects of geometrically large deformations. In this paper, the deformation of a structure is modeled by an updated Lagrangian formulation, and the sensitivity analysis is done with an adjoint variable method. The numerical examples show that the resultant topologies from nonlinear analysis are more stable w. r. t. Buckling collapse and snap-through than those obtained from linear analysis.