Mechanical Properties of Improved Multiple-Layers Viscoelastic Damper

Table 4

Comparison between model results and experimental results.

Strain (%)	Damping force (kN)			Loss factor			Storage modulus (MPa)			Loss modulus (MPa)
	Test	Model	Error (%)	Test	Model	Error (%)	Test	Model	Error (%)	Test	Model	Error (%)
25	113	108	4.18	0.34	0.33	4.41	1.07	1.02	4.61	0.36	0.34	6.49
50	176	190	8.18	0.32	0.35	10.0	0.92	0.85	7.23	0.29	0.27	7.28
75	220	235	6.73	0.26	0.28	6.06	0.78	0.75	3.51	0.21	0.22	4.76
100	301	311	3.51	0.27	0.26	2.62	0.72	0.75	4.62	0.19	0.20	4.58
125	322	350	8.78	0.23	0.25	10.13	0.70	0.63	10.16	0.16	0.18	12.36
150	411	418	1.64	0.21	0.22	1.90	0.69	0.67	2.60	0.15	0.16	3.33
200	510	525	2.89	0.20	0.21	2.94	0.65	0.63	2.49	0.13	0.14	3.73
250	648	657	1.28	0.18	0.17	2.86	0.64	0.66	2.56	0.11	0.10	2.80
300	778	851	9.31	0.14	0.16	10.71	0.66	0.72	9.37	0.09	0.11	13.51
	Equivalent stiffness (kN/mm)			Equivalent damping (kN·s/mm)			Equivalent damping ratio			Dissipated energy (N·mm)
	Test	Model	Error (%)	Test	Model	Error (%)	Test	Model	Error (%)	Test	Model	Error (%)
25	38.4	36.7	4.50	2.08	1.99	4.46	0.200	0.189	5.50	35.04	33.45	4.54
50	32.9	29.8	9.64	1.67	1.53	8.33	0.188	0.173	7.98	129.92	118.46	8.82
75	28.0	27.0	3.51	1.18	1.22	3.57	0.181	0.172	4.97	147.20	155.95	5.95
100	25.9	27.1	4.62	1.10	1.15	4.45	0.173	0.181	4.62	235.17	246.34	4.75
125	25.3	22.80	10.17	0.92	1.02	11.11	0.166	0.183	10.24	323.51	359.34	11.07
150	24.9	23.58	5.35	0.84	0.86	2.99	0.159	0.165	3.77	411.20	425.02	3.36
200	23.2	22.43	3.56	0.75	0.78	3.45	0.156	0.149	4.49	628.68	648.76	3.19
250	23.5	22.93	2.74	0.66	0.64	2.44	0.145	0.139	4.14	849.89	820.00	3.52
300	23.7	25.87	9.16	0.53	0.60	13.58	0.124	0.112	9.68	1,085.02	1,184.55	9.17