Morphology-based black and white filters for topology optimization

被引:102
|
作者
Ole Sigmund
机构
[1] Technical University of Denmark,Department of Mechanical Engineering, Solid Mechanics
来源
Structural and Multidisciplinary Optimization | 2007年 / 33卷
关键词
Topology optimization; Regularization; Image processing; Morphology operators; Manufacturing constraints;
D O I
暂无
中图分类号
学科分类号
摘要
To ensure manufacturability and mesh independence in density-based topology optimization schemes, it is imperative to use restriction methods. This paper introduces a new class of morphology-based restriction schemes that work as density filters; that is, the physical stiffness of an element is based on a function of the design variables of the neighboring elements. The new filters have the advantage that they eliminate grey scale transitions between solid and void regions. Using different test examples, it is shown that the schemes, in general, provide black and white designs with minimum length-scale constraints on either or both minimum hole sizes and minimum structural feature sizes. The new schemes are compared with methods and modified methods found in the literature.
引用
收藏
页码:401 / 424
页数:23
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