Dynamic Characteristics of a Novel Right-Angle Viscoelastic Damper (RVD) Using Polyurethane Damping Materials

Table 7

Comparison of maximum acceleration for each layer between the frame without control and the frame with control.

Loading conditions			Maximum acceleration (m/s^2)
			First floor	Second floor	Third floor	Fourth floor
EI centro wave	0.1 g	Without control	1.13	1.99	2.91	3.72
		With control	1.09	1.38	2.17	2.73
		Damping rate (%)	3.54	30.65	25.43	26.61
	0.2 g	Without control	2.26	3.98	5.82	7.45
		With control	2.03	2.70	4.33	5.28
		Damping rate (%)	10.18	32.16	25.60	29.13
	0.4 g	Without control	4.53	7.95	11.65	14.89
		With control	4.07	5.61	8.80	10.85
		Damping rate (%)	10.15	29.43	24.46	27.13