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论文类型：期刊论文

发表时间：2013-01-01

发表刊物：ENGINEERING OPTIMIZATION

收录刊物：SCIE、EI、Scopus

卷号：45

期号：1

页面范围：1-18

ISSN号：0305-215X

关键字：topology optimization; geometric average displacement (GAD); finite elements

摘要：On the problem of maximum stiffness design of linear elastic structural topology optimization, the objective of most existing models is to achieve minimum mean compliance. However, in most applications the desired results are ones that achieve minimum maximum displacement. In this article, the comparison of the optimum design results between the maximum displacement and the conventional mean compliance is carried out by an example of optimal cross-sectional design of a continuous beam. The result emphasizes the limitations of the conventional minimum compliance method. An improved index, geometric average displacement (GAD), is introduced in the article for linear elastic structural optimization models, with a GAD-based design model. Several examples are provided to demonstrate the effectiveness of the new proposed formulation.