Proposal of an Electromagnetic Actuator for Prosthetic Knee Joints

概要

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This paper proposes an electromagnetic actuator for a prosthetic knee joint, which mainly consists of a ball screw and brushless motor. Energy consumption can be reduced by using the regenerated energy in the stance phase during the swing phase. The operational principle is described and the required torque-speed curve (N-T curve) is calculated by using the inverse kinematics. Then, a brushless motor that satisfies the required N-T curve is designed. Finally, the N-T curve of the brushless motor is computed by using a coupled magnetic field - electrical circuit - control analysis.
日本AEM学会の論文