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Permanent-magnet motors constitute a favored choice for electric drive applications in high-speed ranges due to their increased efficiency, compact rotor structure, and relative robustness. The respective design involves analysis of coupled electromagnetic, thermal, and mechanical phenomena imposing respective limitations. Direct coupling of such a multiphysics problem results in computational onerous optimization schemes; in order to tackle this difficulty, an innovative weak coupling design procedure is introduced considering the interdependence of the phenomena involved during both preliminary and final design stages foreseen. The proposed methodology has been applied in a surface-mounted permanent-magnet motor case.
Koronides et al. (Tue,) studied this question.