Isogeometric topological shape optimization using dual evolution with boundary integral equation and level sets

详细信息    查看全文

• 作者：Seung-Wook Lee ; Minho Yoon ; Seonho Cho ; ^{secho@snu.ac.kr}
• 关键词：Topological Shape optimization ; Level set method ; Isogeometric analysis ; NURBS ; Boundary integral equation ; Dual evolution
• 刊名：Computer-Aided Design
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：82
• 期：Complete
• 页码：88-99
• 全文大小：2377 K
• 卷排序：82

文摘

A topological shape optimization method is developed using a dual evolution scheme. Design sensitivity at fixed grids is derived using isogeometric boundary integral equation. Transformation of implicit geometry from level sets into parametric NURBS curves. NURBS geometry is used for shape variations and the level sets for topological ones. Minimization of energy functional to resolve mismatch between level sets and NURBS.