Fuzzy Semiactive Vibration Control of Structures Using Magnetorheological Elastomer

Table 1

Equivalent stiffness and damping coefficient versus excitation frequencies for different applied currents with excitation amplitude .

Frequency	0 A		2 A		4 A
	(N/mm)	(Ns/m)	(N/mm)	(Ns/m)	(N/mm)	(Ns/m)
1 Hz	13.2	0.79	23.0	0.82	27.9	0.92
3 Hz	14.2	0.79	26.0	0.81	31.3	0.90
6 Hz	15.1	0.81	27.6	0.87	33.4	0.93
9 Hz	15.6	0.82	28.5	0.92	34.6	0.97
12 Hz	16.1	0.83	29.0	0.95	35.1	1.0
15 Hz	16.4	0.86	29.5	0.98	35.6	1.03
18 Hz	17.0	0.90	29.9	1.08	35.7	1.11
22 Hz	17.5	0.92	30.6	1.12	36.2	1.18
26 Hz	17.9	0.94	31.6	1.13	37.3	1.21
30 Hz	18.0	0.96	32.3	1.14	37.5	1.21