Report - 新能源动力传动系统NVH性能开发 - Vogel1.3 驱动电机典型NVH问题——电磁噪声 问题定义：whine，有明显 极槽数阶次及谐波特征的 噪声 产生机理：作用在定、转子之间气隙的径向交变电磁力

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