Analysis of magnetic shielding effect of layered shields based on homogenization

Author

Waki, Hiroshi ; Igarashi, Hajime ; Honma, Toshihisa

Author_Institution

Graduate Sch. of Inf. Sci. & Technol., Hokkaido Univ.

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

847

Lastpage

850

Abstract

This paper describes a nonlinear analysis of magnetic field based on homogenization. The analysis of a magnetic field is time-consuming when the problem includes magnetic substance with fine structure. Simplification of the fine structure by homogenization makes it possible to analyze them efficiently. The authors have introduced a homogenization method to estimate effective permeability of magnetic composite structure for a static field. This method can be applied not only for linear problems but also nonlinear ones. In this paper, the magnetic shielding effect of layered nonlinear material is analyzed by using the homogenization method, and the applicability of this method is discussed

Keywords

finite element analysis; heat treatment; magnetic permeability; magnetic shielding; effective permeability estimation; fine structure; homogenization method; layered shields; magnetic composite structure; magnetic shielding effect; magnetic substance; nonlinear analysis; static field; Boundary conditions; Composite materials; Magnetic analysis; Magnetic flux; Magnetic materials; Magnetic shielding; Magnetostatics; Periodic structures; Permeability; Steel; Effective permeability; homogenization; magnetic shielding; nonlinear analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.872480

Filename

1608339