Structural Control and Health Monitoring

Research Article

Theoretical and Experimental Analysis of a Winding Rope Fluid Viscous Damper

Table 4

Maximum damping force and energy dissipation of the specimen (f = 0.4 Hz and F₀ = 2 kN).


Specimens	u₀ (mm)	F_{WRFVD, max} (kN)	F_{FVD, max} (kN)	W_WRFVD (kJ)	W_FVD (kJ)	W_FD (kJ)	R_FVD (%)	R_FD (%)	A_FVD (%)	A_FD (%)

D1N1R14	10	13.26	4.21	0.31	0.08	0.22	27.09	70.63	29.98	68.93
	20	17.69	5.78	1.00	0.31	0.68	31.19	67.97
	50	25.21	8.06	4.12	1.30	2.80	31.57	67.91
	70	30.09	8.82	6.89	2.07	4.77	30.06	69.20

D2N1R14	10	14.97	6.17	0.32	0.12	0.20	36.56	60.81	37.64	61.39
	20	19.08	7.76	1.08	0.42	0.64	39.50	59.90
	50	25.54	9.84	4.23	1.64	2.58	38.75	61.04
	70	30.33	10.65	7.17	2.56	4.57	35.74	63.82

D3N1R14	10	10.83	3.80	0.28	0.09	0.18	31.49	66.40	33.13	65.92
	20	13.81	5.18	0.84	0.30	0.53	36.05	63.20
	50	21.77	7.21	3.63	1.21	2.41	33.24	66.41
	70	24.79	7.86	5.98	1.90	4.05	31.75	67.68

Note. “F_{WRFVD, max}” and “F_{FVD, max}” denote the maximum damping force of the WRFVD and FVD, respectively, “W_WRFVD,” “W_FVD,” and “W_FD” denote the energy dissipation for one loop of the WRFVD, FVD, and FD, respectively, “R_FVD” denotes the ratio of “E_FVD” to “E_WRFVD” for each specimen, “R_FD” denotes the ratio of “E_FD” to “E_WRFVD” for each specimen, and “A_FVD” and “A_FD” denote average values of the energy consumption ratio of the FVD and FD, respectively.