Vibration and Electromagnetic noise analysis in claw pole machine


Jean-Claude Mipo, Valeo Equipement Electrique Moteur FRANCE


During this last decade, the engine audible noise was drastically reduced, especially at low speed.
In order to improve the comfort of driver, car makers imposed new requirements concerning the audible noise of all equipments in the car.
We have to reduce the magnetic audible noise of alternators, which are claws pole machines.
The aim of our study is to find the parameters which can influence on the noise. In this paper, we focused on the claws shape . Using a DOE (Design Of experiment) method, we optimized the claws shape in order to minimize the noise.


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