Experimental Study on Modified MR Damper

Abstract

Many systems in Industrial sector face the problems of vibrations. Vibration control equipment like MR damper is employed to minimize these vibrations. In this context, magenetorheological fluid (MR Fluid) is introduced as a damper fluid to improve the damper’s vibration reduction capacity significantly. This damper is known as Magnetorheological damper (MR damper) in which electromagnetic piston produces attractive impact to enact MR liquid. However, some problems are observed in MR damper due to internal electromagnetic piston configuration. Therefore, modification is proposed in the damper. The proposed design consists of a conventional MR damper filled with MR fluid and an external assembly of permanent magnet fitted around the damper. The modified MR damper has been tested under different parametric conditions with MR fluid AMT-Dampro. The results convincingly indicate that the modified damper delivers excellent performance by generating effective damping capacity that can be utilized for necessary applications.