薄鋼板の磁気浮上コンピュータシミュレーション

概要

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This paper describes a 3D computer simulation method of magnetic levitation of thin steel plate using electromagnets. In this magnetic levitation system, five electromagnets are used. We obtain magnitude of the attractive force with the help of 3D nonlinear analysis by the finite element method. In the analysis, we use soft-steel B-H curve. The steel plate is levitated by controlling the coil current of the electromagnets. The motion equation of the steel plate is analyzed by using the finite difference method. As the attractive magnetic levitation system is essentially unstable, feedback control is indispensable to stabilize the system. The attractive force is controlled by feedback signals from gap sensors. We simulated the displacement of the steel plate by the impulsive disturbance to the magnetic levitation system. The impulsive response was almost the same as experimental one.
東海大学の論文