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论文类型：期刊论文

发表时间：2010-10-01

发表刊物：ACTA MECHANICA SINICA

收录刊物：SCIE、EI、ISTIC、Scopus

卷号：26

期号：5

页面范围：767-775

ISSN号：0567-7718

关键字：Design-dependent loads; Topology optimization; 3D structures; Load surface; Pressure loading

摘要：Topology optimization of continuum structures with design-dependent loads has long been a challenge. In this paper, the topology optimization of 3D structures subjected to design-dependent loads is investigated. A boundary search scheme is proposed for 3D problems, by means of which the load surface can be identified effectively and efficiently, and the difficulties arising in other approaches can be overcome. The load surfaces are made up of the boundaries of finite elements and the loads can be directly applied to corresponding element nodes, which leads to great convenience in the application of this method. Finally, the effectiveness and efficiency of the proposed method is validated by several numerical examples.