Elastic force amplification mechanism of Magneto-Rheological Elastomer for semi-active vibration control

Abstract

Some methods of semi-active vibration control using Magneto-Rheological Elastomers which can change its stiffness are suggested. However, a Magneto-Rheological Elastomer (MRE) can change their stiffness in a very narrow range. Therefore, it is impossible to change elastic force drastically, and accordingly it is impossible to change the vibration characteristics significantly. In this paper, we proposed a mechanism that changes the resonance characteristics by amplifying the elastic force generated from a MRE using a lever mechanism. Moreover, we derived calculation method of amplification rate of the elastic force by using an old type of the Frequency Based Substructuring (FBS) method known as Building Block Approach (BBA).