Magnetorheological Elastomer Stiffness Control for Tunable Vibration Isolator

Abstract

Most of the vibration isolator has fixed stiffness such as a passive vehicle mounting system. Objective of this research is to develop a Magneto-rheological Elastomer (MRE) as a vibration isolator; stiffness of vibration absorber can be controlled by an applied magnetic field. An MRE was fabricated by mixing silicon rubber, silicon oil and carbonyl iron particles together and then cured for 24 hours in a circular mold. The experimental result shows the absorption capacity of the developed MRE is better than the traditional MRE in time and frequency domains.