Torque Ripple Suppression in an External-Meshed Magnetic Gear Train

Magnetic gear trains transmit torque through noncontact magnetic couplings rather than conjugate gear teeth; they have the unique advantages of reduced maintenance and improved reliability, inherent overload protection, high efficiency, precise peak torque transmission, and tolerance for misalignmen...

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Main Authors: Yi-Chang Wu, Wan-Tsun Tseng, Yueh-Tung Chen
Format: Article
Language:English
Published: SAGE Publishing 2013-01-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1155/2013/178909
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author Yi-Chang Wu
Wan-Tsun Tseng
Yueh-Tung Chen
author_facet Yi-Chang Wu
Wan-Tsun Tseng
Yueh-Tung Chen
author_sort Yi-Chang Wu
collection DOAJ
description Magnetic gear trains transmit torque through noncontact magnetic couplings rather than conjugate gear teeth; they have the unique advantages of reduced maintenance and improved reliability, inherent overload protection, high efficiency, precise peak torque transmission, and tolerance for misalignment. Smooth and steadily transmitted torque is an important characteristic for a magnetic gear train. It is necessary for the reduction of possible mechanical vibration, position inaccuracy, and acoustic noise. This paper investigates the transmitted torque characteristics, especially torque ripple reduction, of an external-meshed magnetic gear train using finite-element analysis (FEA). The topological structure and working principles of a simple magnetic gear train with parallel axes are introduced. With the aid of a commercial FEA package, the transmitted torque waveform of a magnetic gear train is numerically calculated. The effects of geometrical parameters on the maximum transmitted torque and torque ripple are further discussed in terms of obtaining a magnetic gear train with high transmitted torque or low torque ripple. This examination offers insights beneficial to future magnetic gear mechanism design.
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spelling doaj.art-dc638324388f4eff8f197ff89fb5ca072022-12-22T00:28:11ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322013-01-01510.1155/2013/17890910.1155_2013/178909Torque Ripple Suppression in an External-Meshed Magnetic Gear TrainYi-Chang Wu0Wan-Tsun Tseng1Yueh-Tung Chen2 Department of Mechanical Engineering, National Yunlin University of Science & Technology, Douliou, Yunlin 640, Taiwan Department of Electrical Engineering, National Yunlin University of Science & Technology, Douliou, Yunlin 640, Taiwan Department of Mechanical Engineering, National Yunlin University of Science & Technology, Douliou, Yunlin 640, TaiwanMagnetic gear trains transmit torque through noncontact magnetic couplings rather than conjugate gear teeth; they have the unique advantages of reduced maintenance and improved reliability, inherent overload protection, high efficiency, precise peak torque transmission, and tolerance for misalignment. Smooth and steadily transmitted torque is an important characteristic for a magnetic gear train. It is necessary for the reduction of possible mechanical vibration, position inaccuracy, and acoustic noise. This paper investigates the transmitted torque characteristics, especially torque ripple reduction, of an external-meshed magnetic gear train using finite-element analysis (FEA). The topological structure and working principles of a simple magnetic gear train with parallel axes are introduced. With the aid of a commercial FEA package, the transmitted torque waveform of a magnetic gear train is numerically calculated. The effects of geometrical parameters on the maximum transmitted torque and torque ripple are further discussed in terms of obtaining a magnetic gear train with high transmitted torque or low torque ripple. This examination offers insights beneficial to future magnetic gear mechanism design.https://doi.org/10.1155/2013/178909
spellingShingle Yi-Chang Wu
Wan-Tsun Tseng
Yueh-Tung Chen
Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
Advances in Mechanical Engineering
title Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
title_full Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
title_fullStr Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
title_full_unstemmed Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
title_short Torque Ripple Suppression in an External-Meshed Magnetic Gear Train
title_sort torque ripple suppression in an external meshed magnetic gear train
url https://doi.org/10.1155/2013/178909
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AT wantsuntseng torqueripplesuppressioninanexternalmeshedmagneticgeartrain
AT yuehtungchen torqueripplesuppressioninanexternalmeshedmagneticgeartrain