Transverse Vibration of a Moving Viscoelastic Hard Membrane Containing Scratches

Table 2

Frequency ratios versus the scratch depth.

Speed v	Initial	Frequency ratio (%)
		Scratch depth
		0.1	0.2	0.3	0.4	0.5
0	39.09	99.86	99.43	98.67	97.38	95.13
2	37.80	99.85	99.42	98.64	97.31	95.00
4	33.98	99.84	99.37	98.52	97.08	94.56
6	27.69	99.81	99.25	98.24	96.52	93.48
8	19.03	99.73	98.92	97.45	94.93	90.39