Design of a Magnetic Gear Set with Low Torque Ripple

Yi Chang Wu; Wan Tsun Tseng; Yueh Dung Chen

doi:10.4028/www.scientific.net/AMM.479-480.187

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 479-480Design of a Magnetic Gear Set with Low Torque...

Design of a Magnetic Gear Set with Low Torque Ripple

Abstract:

Non-contact magnetic gears have gained significant attention due to no mechanical fatigue, no lubrication, reduced maintenance, improved reliability, overload protection, physical isolation between input and output shafts, and potential for very high efficiency. However, it inherently suffers from a main disadvantage on the ripple of the transmitted torque that may causes vibration of the output shaft. This paper presents an external magnetic gear set with section-shaped magnets with low torque ripple. Finite-element method is used as an assistant tool for the magnetic field analysis and transmitted torque analysis. The effects of number of magnet poles on the maximum transmitted torque and torque ripple of the magnetic gear set are also discussed. It is of benefit to the further design purposes of magnetic gear mechanisms

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Periodical:

Applied Mechanics and Materials (Volumes 479-480)

Pages:

187-191

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.479-480.187

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Online since:

December 2013

Authors:

Yi Chang Wu, Wan Tsun Tseng, Yueh Dung Chen

Keywords:

Finite Element Analysis (FEA), Magnetic Gear Set, Torque Ripple

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