<title>Vibration control of a passenger car using MR engine mounts</title>

Abstract

This paper proposes a semiactive controllable magneto-rheological(MR) engine mount for vibration control of a passenger vehicle. A mixed-mode type MR engine mount is devised and incorporated with a full-vehicle model. The governing equation of the model is derived by considering engine excitation force and a semiactive skyhook controller is designed to attenuate unwanted vibrations. The controller is implemented through a hardware-in-the-loop simulation(HILS) and control responses such as acceleration at the driver's position are evaluated in time and frequency domains.

Geometry optimization of MR valves constrained in a specific volume using the finite element method

“…The process is fully variable and reversible. This interesting property of the MR fluid has led to numerous research activities in various engineering applications such as MR valves [3][4][5][6][7], shock absorbers and dampers [8,9], engine mounts [10] and clutch/brake systems [11]. When the MR fluid is employed in valve systems, the rheological change of the fluid causes a pressure drop of the control volume, which can be continuously tuned by controlling the intensity of the imposed magnetic field.…”