一、调相误差分析传动轴在动平衡试验机的不同相位测试,有时会产生动平衡机示值不等的现象,我们称这种现象为调相误差。对一根传动轴来说,只要回转轴线不变,对两个给定平面它的动不平衡量就是个确定值。因此,假定略去传动轴和动平衡机夹具间的间隙引起的误差,传动轴在动平衡机任意相位安装,动平衡机示值均应相等。但目前许多汽车传动轴生产厂在测试传动轴动平衡时都产生调 First, the phase error analysis Drive shaft in the dynamic balance test machine of different phase test, and sometimes there will be dynamic balancing machine ranging from the phenomenon, we call this phenomenon for the phase modulation error. For a drive shaft, as long as the axis of rotation unchanged, the two given plane its dynamic unbalance is a definite value. Therefore, given the omission of the error caused by the gap between the drive shaft and the dynamic balancer fixture, the drive shaft should be installed at any phase of the dynamic balancing machine, and the indication of the dynamic balancing machine should be equal. However, at present, many automobile drive shaft production plants generate torque when testing the drive shaft dynamic balance