Comparison of different force calculation methods in 3D finite element modelling

Author

Ren, Z.

Author_Institution

Lab. de Genie Electrique de Paris, Ecole Superieure d´´Electr., Gif-sur-Yvette, France

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3471

Lastpage

3474

Abstract

Different methods for the local and total force calculation in 3D are examined. The accuracy and efficiency of these methods when applied to two dual formulations are compared through numerical examples. The local application of virtual work principle using edge elements permits calculation of local and total force in conductors as well as in magnetic materials. Concerning the equivalent sources methods (magnetising current method and magnetic charge method), they are theoretically equivalent to the Maxwell stress tensor method for total force calculation, while the numerical accuracy depends on the accuracy of the normal and tangential components of the field

Keywords

electromagnetic fields; electromagnetism; finite element analysis; magnetic fields; 3D finite element modelling; FEM; Maxwell stress tensor method; conductors; dual formulations; edge elements; equivalent sources methods; force calculation methods; magnetic charge method; magnetic materials; magnetising current method; virtual work principle; Conducting materials; Couplings; Finite element methods; Magnetic flux; Magnetic forces; Magnetic materials; Magnetostatics; Magnetostriction; Saturation magnetization; Tensile stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312686

Filename

312686