Noboru Niguchi
Dept. of Adaptive Machine Systems, Graduate School of Engineering, Osaka University
Abstract
Magnetic gears have some advantages such as maintenance-free operation and self-overload protection that are not observed in mechanical gears. They were not in practical use due to the low transmission-torque density. But, recently, the practical transmission-torque density could be obtained by developing a magnetic harmonic gear (MHG) operating with harmonic magnetic flux.
We have developed the cogging torque reduction method of MHG to reduce the vibration caused by the cogging torque. But, few studies regarding electromagnetic vibration have not been seen.
This paper describes the electromagnetic vibration of a MHG by employing the coupled analysis between magnetic field and structure, and the results are verified by carrying out measurements by a prototype.
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