Table 10.

Comparison of theoretical and experimental root mean square values of the unstable region of the system at different frequencies.

	$\mathbf{External} \mathbf{Force} \mathit{\epsilon }=0.4$
Input FrEq.	16.2	13	16.2	19	28.8	27.5	28.8	30
Theo. (V)	1.6967	0.8997	1.6967	0.7504	3.2076	2.3210	3.2076	1.3783
Exp. (V)	1.6039	0.8587	1.5549	0.7066	3.0251	2.1551	3.0664	1.2554
Error (%)	5.47	4.56	8.35	5.84	5.69	7.15	4.40	8.92