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

Table 1

The identified spring constants of MREs listed against applied current. All values are represented in units of N/mm. Numbers shown in parentheses are the elastic shear moduli in MPa.

MRE composition	Current
	0 A	1 A	2 A	3 A	4 A
30 vol% MRE	17.1 (0.27)	27.3 (0.44)	40.3 (0.65)	54.3 (0.87)	62.4 (1.00)
40 vol% MRE	28.5 (0.46)	53.9 (0.86)	91.8 (1.47)	135 (2.15)	157 (2.51)
50 vol% MRE	62.2 (1.00)	98.2 (1.57)	163 (2.61)	254 (4.06)	301 (4.81)