Noise radiated by electric motors – simulation process and overview of the optimization approaches

Abstract

The automotive industry has entered a phase of change due to environmental considerations. Hybrid and electric vehicles have emerged. The vibroacoustic behaviour (knowledge of the source mechanisms and expertise regarding the integration of this source of noise and vibration inside the vehicle structure) of combustion engines is now well controlled. This knowledge cannot be directly transferred to these new vehicles, either hybrid or electric. Therefore, it is necessary to build a new expertise and new tools in order to understand and optimize electric motors and their integration. This paper takes part in this process: the goal is to predict the vibroacoustic characteristics of a motor during the design phase.