汽车电机噪声机理和降噪方法

Automobile Dynamo's Noise Generation Principle and Some Ways to Cut Noise Down

对汽车电机噪声的机理进行了综述 ,通过噪声和振动测试得出汽车电机噪声频谱随转速的变化规律 ,最后提出一些降低电机噪声的方法 ,供汽车电机设计和厂家参考。

A description of the automobile dynamo's noise generation principle is given in this paper.By testing the dynamo's noise and vibration,the relation between the dynamo's speed and its noise's spectrum shape is given.Then several methods to reduced automobile dynamo's noise are put forward.