3D nonlinear magnetostatic analysis of a double-walled cylindrical shield

Author

Fauri, M. ; Sonato, P.

Author_Institution

EURATOM-ENEA-CNR, Padova, Italy

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

364

Lastpage

367

Abstract

The performance of a double-walled cylindrical shield for magnetostatic field has been optimized using a 3-D numerical code. The shielding factor of the double-walled screen has been evaluated by varying the geometrical parameters. The optimization of the screen and the design criteria are reported. The influence on the shielding factor of the presence of a hole perpendicular to the cylindrical shield has been evaluated by calculating the field penetration into the internal region of the screen. Finally, the FEM (finite-element method) results have been tested by means of measurements performed on a shield prototype. The comparison between the numerical and experimental data shows good agreement, especially in the region where the finite-element model has been refined with more elements

Keywords

finite element analysis; magnetic shielding; magnetostatics; numerical methods; 3D nonlinear magnetostatic analysis; 3D numerical code; FEM; design criteria; double-walled cylindrical shield; finite-element method; finite-element model; geometrical parameters; screen optimisation; shielding factor; Magnetic analysis; Magnetic confinement; Magnetic field measurement; Magnetic heads; Magnetic materials; Magnetic shielding; Magnetostatics; Prototypes; Saturation magnetization; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106329

Filename

106329