Analysis of the shielding performance of ferromagnetic screens

Author

Araneo, Rodolfo ; Celozzi, Salvatore

Author_Institution

Dept. of Electr. Eng., Univ. of Rome "La Sapienza", Italy

Volume

39

Issue

2

fYear

2003

fDate

3/1/2003 12:00:00 AM

Firstpage

1046

Lastpage

1052

Abstract

We present a method for the analysis of ferromagnetic shields under low-frequency excitation conditions and demonstrate its validity. The source types are arbitrarily oriented current loops or multiconductor lines. We account for hysteresis by means of the Jiles-Atherton model and solve the relevant equations in the time domain by adopting a finite-element time-domain procedure.

Keywords

computational electromagnetics; electromagnetic field theory; ferromagnetic materials; finite element analysis; magnetic hysteresis; magnetic permeability; magnetic shielding; time-domain analysis; EM field penetration; Jiles-Atherton model; LF excitation conditions; electromagnetic field penetration; ferromagnetic screens; ferromagnetic shields; finite-element time-domain procedure; hysteresis; low-frequency excitation conditions; magnetic shielding; shielding performance analysis; Electromagnetic fields; Electromagnetic propagation; Finite element methods; Magnetic hysteresis; Magnetic materials; Magnetic shielding; Performance analysis; Permeability; Power cables; Time domain analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.808604

Filename

1190067