文章基本信息

标题：Fixed-grid hole-shape optimization for opening structures using smoothly deformable implicit curve:
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作者：Wentao Xu ; Honglu Wang ; Shouyu Cai 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2019
卷号：11
期号：2
DOI：10.1177/1687814019826676
语种：English
出版社：Sage Publications Ltd.
摘要：Hole-shape optimization for opening structures can effectively alleviate the hole-edge stress concentration; however, it requires high precision of stress analysis and high geometrical deformation capacity of the hole-edge curves. Therefore, the finite cell method is adopted in this work for high-precision numerical analysis within the fixed mesh, and the smoothly deformable implicit curve is proposed to describe the boundary to be optimized. After deriving analytical sensitivity analysis formulas, we built a hole-shape optimization design framework having high precision and high efficiency. Through hole-shape optimization in opening structures under different load boundary conditions, the proposed framework exhibited several advantages such as no mesh updating, simple sensitivity derivation, high analytical precision, and large design space.
关键词：Shape optimization; opening structure; topological optimization; finite cell method; implicit curve