A Numerical Prediction Model for Vibration and Noise of Axial Flux Motors.

A numerical procedure to predict vibration and acoustic noise due to electromagnetic excitation forces in an axial flux motor (AFM) is presented and applied to a motor with ferrite magnets for electric vehicles. The methodology includes the calculation of radial magnetic forces exerted on stator inner surfaces using electromagnetic solver to account for vibration and noise of the motor. Fundamenta...