Analysis and design optimisation of magnetic couplings using 3D finite element modelling

Accurate analysis and optimal design of magnetic couplings are essential to minimise the volume of magnet material and to avoid the construction and testing of multiple models to achieve a given design goal. This paper compares the results of using 3D and 2D finite element analysis (FEA) and analyti...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1997-09, Vol.33 (5), p.4083-4094
Main Authors: Wu, W., Lovatt, H.C., Dunlop, J.B.
Format: Article
Language:English
Subjects:
Coupling circuits
Design optimization
Finite element methods
Iron
Magnetic analysis
Magnetic circuits
Magnetic materials
Magnetic separation
Permanent magnets
Torque
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Summary:Accurate analysis and optimal design of magnetic couplings are essential to minimise the volume of magnet material and to avoid the construction and testing of multiple models to achieve a given design goal. This paper compares the results of using 3D and 2D finite element analysis (FEA) and analytical methods with experiment. It is found that 3D analysis provides superior agreement. Design of FEA meshes in 3D and 2D are discussed. A method of correcting 2D FEA for end leakage is presented. Optimisation using 3D FEA, combined with computer search techniques, is demonstrated.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.619670