永久磁石と電磁石を利用した周辺自由鋼板の浮上制御に関する実験的考察

概要

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This paper proposes a method of magnetic levitation control of a thin steel plate with free edges by using permanent magnets and electromagnets. The attractive forces of electromagnets are controlled by feedback signals from gap sensors to stabilize the levitation behavior. In order to put the levitation system to practical use, the system using a small number of electromagnets and sensors should be designed. So, five electromagnets and sensors are used in this study. We propose that the several permanent magnets are used to make up for a deficiency of the attractive forces of five electromagnets. To verify the usefulness of using the permanent magnets an experiment of optimal digital levitation control was performed for a steel plate with free edges (length : 800mm, width : 600mm, thickness : 0.3mm). As a result, it was shown that the control performance was improved by using the permanent magnets and the control system could get the more stabilized levitation behavior.
東海大学の論文