ERF의 항복응력에 따른 댐퍼 성능 고찰

This paper presents performance investigation of a continuously variable ER(electro-rheological) damper operating with different ER fluids. A dynamic model of the damper is formulated by incorporating electric field-dependent Bingham properties of the ER fluids. The Bingham properties are experimentally obtained through an electro-viscometer. After analyzing damper performance through computer simulation, important model parameters of the ER damper are determined. The damping forces of the ER damper featuring two different ER fluids are experimentally evaluated by changing the intensity of the electric field. In addition, continuous controllability of the damping force is also demonstrated by implementing skyhook control algorithm.