Adaptive Model Reference Sliding Mode Control of Structural Nonlinear Vibration

Table 2

Identified value and error of the unknown parameters.

Parameters	Actual value	Initial value	Identified by augmented observation		Identified by acceleration
			Value	Error (%)	Value	Error (%)
(10^7)	9.315	5.5890	9.3537	0.42	9.2308	0.9
(10^7)	7.605	4.5630	7.6404	0.47	7.5410	0.84
(10^7)	6.165	3.6990	6.2121	0.76	6.1211	0.71
	0.5	0.3	0.5070	1.41	0.5169	3.37
	1	0.6	0.9906	0.94	1.0176	1.76
	0.5	0.3	0.5190	3.80	0.3917	21.66
	0.5	0.3	0.5187	3.73	0.3893	22.13