It is found that in the grinding chatter signals,beat wave phenomenon in the time domain and sidebands phenomenon in the frequency domain are both resulted from grinding wheel unbalance.

• 对磨削颤振信号进行了实验分析，证明了由于砂轮回转不平衡的影响，造成磨削颤振信号在时域上的拍波和频域上的边频带现象。