DocumentCode :
856495
Title :
Computation of deformation of ferromagnetic material
Author :
Vandevelde, L. ; Melkebeek, J.A.A.
Author_Institution :
Electr. Energy Lab., Ghent Univ., Belgium
Volume :
149
Issue :
5
fYear :
2002
fDate :
9/1/2002 12:00:00 AM
Firstpage :
222
Lastpage :
226
Abstract :
Several different methods for computing the magnetic force distribution can be found in the literature. In addition to magnetic forces, magnetostriction also contributes to deformation. Magnetic forces and magnetostriction are often treated and computed as different phenomena. A method for modelling magnetic forces and magnetostriction in ferromagnetic material is presented, in which magnetic forces, magnetostriction and deformation are considered simultaneously. This method is discussed with regard to the theoretical background. In particular, phenomena such as the so-called ´form effect in magnetostriction´, which clearly illustrates the presence of both magnetostriction and long-range magnetic forces, are treated. Further, the method is compared with other methods. It can be shown that for some particular expressions of the constitutive laws, the method corresponds to other methods found in the literature. Finally, the numerical implementation of the method to compute the magnetic field and deformation in ferromagnetic material using the finite element method is discussed.
Keywords :
deformation; ferromagnetism; finite element analysis; magnetic forces; magnetostriction; deformation; ferromagnetic material; finite element method; form effect in magnetostriction; long-range magnetic forces; magnetic force distribution; magnetostriction;
fLanguage :
English
Journal_Title :
Science, Measurement and Technology, IEE Proceedings -
Publisher :
iet
ISSN :
1350-2344
Type :
jour
DOI :
10.1049/ip-smt:20020609
Filename :
1044818
Link To Document :
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