Design of a Real-Time Adaptively Tuned Dynamic Vibration Absorber with a Variable Stiffness Property Using Magnetorheological Elastomer

Table 3

Tunable frequency range of the dynamic absorber with variable stiffness.

Iron concentration	Frequency variation range [Hz]	Bandwidth [Hz]	Magnification to the baseline	Damping ratio
30 vol%	21.1–29.2	8.1	1.38	0.13
40 vol%	25.8–36.0	10.2	1.39	0.12
50 vol%	36.6–46.8	10.2	1.28	0.18