Magnetostriction and magnetic forces in electrical steel: finite element computations and measurements

Author

Vandevelde, L. ; Hilgert, T.G.D. ; Melkebeek, J.A.A.

Author_Institution

Dept. of Electr. Energy, Ghent Univ., Belgium

Volume

151

Issue

6

fYear

2004

Firstpage

456

Lastpage

459

Abstract

The experimental determination of the magnetoelastic characteristics of ferromagnetic materials by means of strain gauges and the computation of the deformation due to magnetic forces and magnetostriction by using the finite element method are presented. For measuring the magnetoelastic properties of electrical steel sheet, a small single sheet tester has been build. The measurement setup has been simulated by means of the two-dimensional finite element method. Two geometries of the steel samples have been considered, namely with and without an airgap. The difference between the measured strain in the sheet with and without the airgap (due to the so-called form effect) closely agrees with the simulation results.

Keywords

deformation; ferromagnetic materials; finite element analysis; iron alloys; magnetic forces; magnetic variables measurement; magnetoelastic effects; magnetostriction; mechanical variables measurement; silicon alloys; air gaps; deformation; electrical steel sheet; ferromagnetic materials; form effect; magnetic forces; magnetoelastic properties; magnetostriction; small single sheet tester; steel geometry; strain gauges; two-dimensional finite element method;

fLanguage

English

Journal_Title

Science, Measurement and Technology, IEE Proceedings -

Publisher

iet

ISSN

1350-2344

Type

jour

DOI

10.1049/ip-smt:20040630

Filename

1389241