Recentering Shape Memory Alloy Passive Damper for Structural Vibration Control

Table 1

Comparison between the experimental and theoretical results.

Peak displacement (mm)	Energy dissipation per cycle (N·mm)			Secant stiffness (N/mm)			Equivalent viscous damping (%)
	Experimental data	Numerical results	Difference	Experimental data	Numerical results	Difference	Experimental data	Numerical results	Difference
2.3	573.90	545.00	5.0%	150.90	150.44	0.3%	11.40	10.90	4.4%
3.4	1021.10	1026.81	0.6%	109.17	108.27	0.8%	12.80	13.06	2.0%
4.6	1534.70	1586.28	3.4%	85.77	84.78	1.2%	13.40	14.08	5.1%
5.7	2097.80	2099.43	0.1%	72.37	71.92	0.6%	14.20	14.30	0.7%