Characterization and Evaluation of Rotation Accuracy of Hydrostatic Spindle under the Influence of Unbalance

Table 3

Ratio of simulated value to experimental value at different speeds.

Rotating speed (r/min)	x simulation value/x experimental value (%)	y simulation value/y experimental value (%)	z simulation value/z experimental value (%)
300	85.91	87.29	83.33
600	87.69	95.61	81.35
900	87.87	81.20	71.22
1200	85.71	87.87	81.52