Surface elements for modelling 3D fields around thin iron sheets

Author

Rodger, D. ; Leonard, P.J. ; Lai, H.C.

Author_Institution

Sch. of Electr. Eng., Bath Univ., UK

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1483

Lastpage

1486

Abstract

A method that allows thin iron sheets to be included in 3-D finite element models of magnetostatic fields is introduced. This method avoids having to model the sheet using volume elements. This is advantageous, as very fine meshes are conventionally required to model sheets which are thin compared to the other dimensions if elements with a poor aspect ratio are to be avoided. The technique has been available in the MEGA package and has proved useful in modeling electromagnetic compatibility problems, in shielding for magnetic resonance imaging magnets, and for the effects of ships and dockyards on the Earth´s magnetic field

Keywords

electrical engineering computing; finite element analysis; iron; magnetic fields; magnetostatics; physics computing; 3D fields; Earth´s magnetic field; MEGA package; dockyards; electromagnetic compatibility problems; finite element models; magnetic resonance imaging magnets; magnetostatic fields; shielding; ships; surface elements; thin Fe sheets; Earth; Electromagnetic compatibility; Electromagnetic modeling; Finite element methods; Iron; Magnetic resonance imaging; Magnetostatics; Magnets; Marine vehicles; Packaging;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250683

Filename

250683