2010•Unpublished venueRequires access

Transmission torque characteristics in a magnetic gear

Noboru Niguchi, Katsuhiro Hirata, Masari Muramatsu, Yuichi Hayakawa

Abstract

This paper describes the transmission torque characteristics in a surface permanent magnet-type (SPM-type) magnetic gear. The operating principle of this gear and its transmission torque under the synchronous operation in accordance with the gear ratio are formulated. And the high-order components contained in the cogging torque are verified by employing the 3-D finite element method (FEM) and carrying out measurements on a prototype. Furthermore, a method for reducing the cogging torque is discussed.

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Available abstract

Key concepts: Magnetic gear, Cogging torque, Torque, Finite element method, Magnet, Transmission (telecommunications), Direct torque control, Non-circular gear