DYNAMIC UNBALANCE CALCULATING METHOD AND DYNAMIC UNBALANCE TESTING DEVICE

摘要

The magnitude and angular position of dynamic unbalance of a rotary body are calculated from the original vibration vector. The original vibration vector (magnitude and angular position) obtained by measurement using a vibration sensor in bearings supporting the rotary body has its specific unbalance calculated from the dynamic unbalance vector (magnitude, angular position) of the rotary body obtained by a vector calculation method on the basis of the ratio of the spacing between the bearings to the spacing between two corrected surfaces optionally set on the rotary body.