鉄粉層内蔵永電磁式ばね形アクチュエータの開発と設計法(機械力学,計測,自動制御)

概要

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A new spring type actuator is presented in which controls are possible by using usual control methods such as PID control. The actuator consists of a usual helical coil spring and a number of iron (ferrite) particle layers inside. The iron layers are made of silicon based adhesive material involving iron particles. The layers are pasted to the coil spring with a certain air gap between each layer. To achieve both extensive and compressive motions, a permanent magnet is attached to the top of the spring and electromagnet to the base, and the motion of the top of the actuator is controlled by electric currents in the coil of the electromagnet. A method of forming the actuator is presented, and its design formulae are presented. The present actuator works well under the control. Especially, the work area is large enough in spite of the size being small in comparison with other actuators.
社団法人日本機械学会の論文
2006-12-25