永電磁リフマグの原理を応用した制御用多板電磁ブレーキの開発

概要

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This study proposes a new type of electromagnetic multiple disk brake for controlling the friction torque of the brake by using a rare earth magnet which generates very strong magnetic fields. This brake consists of a rare earth permanent magnet, an electric magnet and multiple friction disks. In this system, a control device such as a microcomputer generates an electric current in a coil of the electric magnet, and controls the friction torque of the brake. In the analysis the design formulae for the brake is first derived, based on the theory of electro-magnetic fields and the theory of tribology, then the transient friction torque is derived using the theories of Dynamics of Machinery and Automatic Control. To verify the present system and the analytical method, experimental tests have been performed for a model of the above-mentioned brake.
一般社団法人日本機械学会の論文
1988-01-25