Abstract
The Electro-Magnetic-Suspension (EMS) system with a circle-cross-section rail succeeded the banking of a vehicle while running in curve. In the system, the damping in tilting motion is so small that any disturbance will make the vehicle oscillation without friction. So vibration control system made by the rotor with active control was proposed. The feedback control of the rotation of the rotor by sensing tilting angle with gyro sensor realizes equivalency skyhook damper for tilting motion of the vehicle. In this paper, simulation and experiment are carried out, and varying the position of the rotor in this vibration control system is investigated.