Design sensitivity analysis for shape optimization of 3-D electromagnetic devices

Author

Koh, Chang-Seop ; Hahn, Song-Yop ; Lee, Ki-Sik ; Choi, Kyung

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1753

Lastpage

1757

Abstract

A three-dimensional shape optimization algorithm is developed by combining design sensitivity analysis and the boundary element method (BEM). The design sensitivity is derived by implicitly differentiating the boundary integral equation with respect to the design variables. The proposed algorithm is validated by applying it to the pole shape optimization of three-dimensional electromagnets. The objective function has been observed to monotonically converge, and the final optimized shape is obtained within a reasonable number of iterations

Keywords

Maxwell equations; boundary-elements methods; electromagnetic devices; electromagnets; integral equations; iterative methods; optimisation; sensitivity analysis; 3D EM devices; BEM; Maxwell equations; boundary element method; boundary integral equation; convergence; design sensitivity analysis; iterative method; pole shape optimization; three-dimensional electromagnets; three-dimensional shape optimization algorithm; Algorithm design and analysis; Boundary element methods; Design optimization; Electromagnetic devices; Integral equations; Jacobian matrices; Magnetic materials; Magnetostatics; Sensitivity analysis; Shape;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250744

Filename

250744