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Media type:
E-Article
Title:
Finite element based expressions for Lorentz, reluctance and magnetostriction forces
Contributor:
Delaere, Koen;
Heylen, Ward;
Belmans, Ronnie;
Hameyer, Kay
Published:
Emerald, 2001
Published in:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 20 (2001) 1, Seite 20-31
Language:
English
DOI:
10.1108/03321640110359697
ISSN:
0332-1649
Origination:
Footnote:
Description:
The magnetic and mechanical finite element systems are combined into one magnetomechanical system. Investigating the coupling terms results in a finite element expression for the magnetic forces (Lorentz force and reluctance force) for both the linear and nonlinear case. The material deformation caused by magnetostriction is represented by an equivalent set of mechanical forces, giving the same strain to the material as magnetostriction does. The resulting magnetostriction force distribution is superposed onto other force distributions (external mechanical forces, magnetic forces) before starting the mechanical deformation or vibration analysis. This procedure is incorporated into a weakly‐coupled cascade solving of the magnetomechanical problem.