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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:机械工程学院
电子邮箱:guodm@dlut.edu.cn
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.