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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
Explicit topology optimization using IGA-based moving morphable void (MMV) approach
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论文类型:期刊论文
发表时间:2020-03-01
发表刊物:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
收录刊物:EI、SCIE
卷号:360
ISSN号:0045-7825
关键字:Topology optimization; Shape optimization; Moving Morphable Void (MMV); Isogeometric analysis (IGA); Trimmed surface analysis
摘要:In the present work, a new IGA-based MMV (moving morphable void) approach for structural topology optimization is developed. In this approach, the MMV-based topology optimization framework is seamlessly integrated into IGA by using TSA (trimming surface analysis) technique. Compared with existing works where TSA is also employed for topology optimization, the proposed approach provides a robust and flexible control of structural geometry/topology, and has the capability of preventing the occurrence of self-intersection and jagged boundaries in a straightforward manner. The newly developed method is also applied to topology optimization of shell structures, which are widely used in engineering applications. It is found that by using only a relatively small number of IGA-based elements, the present MMV and IGA-based method can obtain optimized shell structures with smooth boundaries with the same ease as for 2-D planar problems. Numerical examples are also provided to demonstrate the effectiveness of the proposed method. (C) 2019 Elsevier B.V. All rights reserved.