Test on the Influence of Geometric Parameters of an Annular Trench on the Vibration Isolation Area

Table 8

Test arrangement for the parameter l.

Test conditions	Excitation frequency (Hz)	L
3-1	30	0.16
3-2		0.27
3-3		0.38
3-4		0.49
3-5	60	0.33
3-6		0.55
3-7		0.76
3-8		0.98
3-9	120	0.65
3-10		1.09
3-11		1.53
3-12		1.96