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本文采用分段运转、动平衡、功率谱和相干分析四种方法相结合，鉴别了家用果汁机的振源与噪声源，在此基础上，对家用果汁机采取了积极减振、主动隔振和局部阻尼处理，获得了比较好的减振降噪效果：振动减小了８４％，噪声由９２ｄＢ（Ａ）下降到７４ｄＢ（Ａ）以下。
In this paper, a combination of four methods of segmented operation, dynamic balance, power spectrum and coherence analysis were used to identify the vibration source and noise source of household blender. On this basis, the active blender And local damping treatment, the better vibration and noise reduction effects are obtained: the vibration is reduced by 84% and the noise is reduced from 92dB (A) to 74dB (A) or less.