Dot sensitivity analysis of ferromagnetic materials for topology optimization in an axi-symmetric magnetostatic system

被引:1
|
作者
Hong, SeungGeon [1 ]
Lee, Kang Hyouk [1 ]
Park, Il Han [1 ]
机构
[1] Sungkyunkwan Univ, Sch Elect & Elect Engn, Suwon, South Korea
关键词
Topology optimization; Dot sensitivity analysis; Axi-symmetric magnetostatic system; Shape sensitivity; Level set method; SHAPE;
D O I
10.1108/COMPEL-10-2018-0413
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Purpose The purpose of this paper is to propose dot sensitivity analysis of ferromagnetic materials for topology optimization in an axi-symmetric magnetostatic system. Design/methodology/approach The dot sensitivity formula for the axi-symmetric system is derived as a closed form using the continuum shape sensitivity formula. The dot sensitivity method is combined with the level set method to perform topology optimization. Findings Derived dot sensitivity analysis can generate a ferromagnetic ring torus in a vacant region. Thus, an initial design is not needed for the design material. Two design problems are tested to demonstrate the usefulness of dot sensitivity. Originality/value By simultaneously using the shape sensitivity and dot sensitivity, in axi-symmetric magnetic system, the design space is expanded and it includes the interface and the inside of the vacant region. This property can reduce the possibility of local optimum convergence.
引用
收藏
页码:990 / 998
页数:9
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