Analytical Surface Charge Method for Rotated Permanent Magnets: Boundary Element Method Comparison and Experimental Validation

Analytical Surface Charge Method for Rotated Permanent Magnets: Boundary Element Method Comparison and Experimental Validation

This paper is concerned with the analytical calculation of the interaction force between two permanent magnets (PMs) under relative rotation by means of the surface charge method, taking into account the non-unity relative permeability of the PMs. This model combines high accuracy and short calculat...

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Veröffentlicht in:IEEE transactions on magnetics 2016-07, Vol.52 (7), p.1-4
Hauptverfasser: van Dam, J. R. M., Paulides, J. J. H., Robertson, W. S. P., Dhaens, M., Lomonova, E. A.
Format: Artikel
Sprache:eng
Schlagworte:
3D printing
Analytical models
Boundary element method
electromagnetic fields
electromagnetic forces
Exact solutions
Finite element analysis
Force
Magnetism
Magnetostatics
Mathematical analysis
Mathematical model
Mathematical models
Numerical models
Permanent magnets
Permeability
Structural beams
Surface charge
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Beschreibung
Zusammenfassung:This paper is concerned with the analytical calculation of the interaction force between two permanent magnets (PMs) under relative rotation by means of the surface charge method, taking into account the non-unity relative permeability of the PMs. This model combines high accuracy and short calculation time. As the considered PM configuration is a free-space, unbounded problem, the results from the surface charge method are compared with its numerical counterpart, the boundary element method. The analytical expressions were validated by means of the measurement results obtained from a 3-D printed test setup.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2016.2517658