Analysis on Vibration Characteristics of Air Film Damping with Open Boundaries

Table 5

Vibration information at different AF thickness.

AF thickness (mm)	Theoretical damping ratio	Experimental damping ratio	Error (%)
0.125	0.633	0.55	15.09
0.15	0.48	0.41	18.29
0.2	0.25	0.21	19.05
0.25	0.13	0.12	8.33
0.5	0.022	0.026	15.38
0.75	0.0094	0.012	21.67
1	0.005	0.0067	25.37