Numerical analysis of the dynamic behavior of rotor shafts in permanent magnet synchronous machines
Abstract
The optimization methodology described in this paper aioms at minimizing the noise and vibrations of
electric motors. It relies on a numerical workflow involving electromagnetic, dynamic and acoustic models.
Afterwards, a deterministic optimization method is described and applied to automotive traction motors. A
robust enhancement of the optimization is then presented. It aims at considering the effect of manufacturing
tolerances, materials properties dispersion and control uncertainties on the vibratory and acoustic levels to
minimize, so that the electric motors are really silent when manufactured and operated. An application case
of this robust optimization based on an automotive motor is then detailled
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