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  • 1 Laboratory of Electromechanics, Faculty of Electrical Engineering, Helsinki University of Technology P.O. Box 3000, FI-02015 TKK, Finland
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The measurements done on magnetic bearings usually give higher losses than have been expected through the simulations. One of the reasons for the difference might be that the stresses introduced by mechanical or thermal treatments are not taken into account when a model is developed. In this paper, a core loss model of the magnetic bearings, taking the stresses in the laminations of the rotor into account is proposed. The model is used in the finite element analysis of radial magnetic bearings.

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