Vibration Suppression Effect of Magnetically Levitated Thin Steel Plate by Magnetic Field from Edge Direction(Basic Study on Levitation Performance)

Abstract

　Contact conveyance by roller is carried out on the thin steel plate production line. The surface of the thin steel plate was scratched, and the quality of the steel plate deteriorates. Therefore, non-contact magnetic levitation conveyance of thin steel plate using the attractive force of electromagnets has been proposed. On the other hand, the levitation stability of thin steel plates has been improved by applying a magnetic field in the horizontal direction to suppress the deflection of the thin steel plates. We also have studied a curved magnetic levitation system using the flexibility of thin steel plates. In this study, we constructed electromagnetic levitation system which has vertical levitation control system with tilted electromagnet and horizontal positioning control system by electromagnet installed in horizontal direction. We performed transportation experiment of the bending levitated steel plate and investigate the effect of bending for transportation performance. From the results, the different tendency from previous study for levitation stability was obtained.