Identification of Sudden Stiffness Change in the Acceleration Response of a Nonlinear Hysteretic Structure

Table 8

Identification results for the MR damper experiment.

Case	c (N·s/m)	k (N/m)	α	β	γ	N	f0 (N)
Case 1	1.22 × 10^7	1.76 × 10^7	6.76 × 10^5	16.51	16.39	15.70	3286.92
Case 2	1.38 × 10^7	8.02 × 10^6	2.42 × 10^6	18.12	12.81	23.96	3668.17
Case 3	9.95 × 10^6	3.60 × 10^6	4.80 × 10^5	4.53	6.33	28.94	3000.00
Case 4	7.31 × 10^6	1.90 × 10^6	4.73 × 10^5	5.65	8.55	29.53	3000.00