Topology optimization with closed B-splines and Boolean operations

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• 作者：Weihong Zhang^a ; ^{zhangwh@nwpu.edu.cn} ; Linying Zhao^a ; Tong Gao^a ; Shouyu Cai^b
• 关键词：Closed B-splines ; Boolean operations ; Finite cell method ; Level-set function ; Topology optimization
• 刊名：Computer Methods in Applied Mechanics and Engineering
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：315
• 期：Complete
• 页码：652-670
• 全文大小：5556 K
• 卷排序：315

文摘

The free-form curve of closed B-splines is introduced as basic design primitives to realize topology optimization with small number of design variables. Complex shape of design domain is rigorously modelled by means of level-set description and Boolean operation. Topology optimization is carried out conveniently within the framework of fixed grid. Computing accuracy is ensured effectively with the use of finite cell method.