Magnetic field computation in a physically large domain with thin metallic shields

Author

Buccella, C. ; Feliziani, M. ; Maradei, F. ; Manzi, G.

Author_Institution

Dept. of Electr. Eng., L´´Aquila Univ., Italy

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1708

Lastpage

1711

Abstract

A three-dimensional edge element procedure is presented to analyze the magnetic field around thin shields embedded in a physically large domain. The shield region is eliminated from the computational domain and coupled boundary conditions named impedance network boundary conditions are imposed on the new boundary surfaces to take into account the field discontinuity produced by the eliminated shield. An experimental setup is built and the measured magnetic fields are compared to the results obtained by the proposed procedure.

Keywords

computational electromagnetics; finite element analysis; magnetic fields; magnetic separation; boundary surfaces; coupled boundary conditions; edge element; field discontinuity; finite-element method; impedance network boundary conditions; magnetic field computation; thin metallic shields; Boundary conditions; Eddy currents; Finite element methods; Frequency; Integral equations; Magnetic analysis; Magnetic field measurement; Magnetic shielding; Physics computing; Surface impedance; Coupled boundary conditions; edge elements; finite-element method (FEM); impedance network boundary condition (INBC); physically large domain; shielding;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.846059

Filename

1430946