Theoretical analysis and optimal design of permanent magnet assisted magnetic gears

ObjectiveAiming at the problems of low structural strength of surface-mounted magnetic gears and large torque pulsation of convex pole magnetic gears, a permanent magnet assisted magnetic gear was proposed.MethodsFirstly, the basic structure and working principle of the magnetic gear were introduced...

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Main Authors: SHANGGUAN Xuanfeng, LI Shihao, ZHANG Longqi, ZHAO Lei
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2025-04-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.011
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author SHANGGUAN Xuanfeng
LI Shihao
ZHANG Longqi
ZHAO Lei
author_facet SHANGGUAN Xuanfeng
LI Shihao
ZHANG Longqi
ZHAO Lei
author_sort SHANGGUAN Xuanfeng
collection DOAJ
description ObjectiveAiming at the problems of low structural strength of surface-mounted magnetic gears and large torque pulsation of convex pole magnetic gears, a permanent magnet assisted magnetic gear was proposed.MethodsFirstly, the basic structure and working principle of the magnetic gear were introduced. The inner rotor adopted a rotor structure similar to that of a permanent magnet assisted reluctance motor. Secondly, an analytical formula for calculating the magnetic flux density distribution of the internal and external air gaps of magnetic gears was derived and obtained, and the characteristics of magnetic gears were analyzed. Finally, multi-objective optimization design was carried out with the goal of increasing the electromagnetic torque and reducing the torque ripple.ResultsIt provide a reference for the design of magnetic gears assisted by permanent magnets.
format Article
id doaj-art-b70a67b3aad74fb79f255a614ea79f56
institution DOAJ
issn 1004-2539
language zho
publishDate 2025-04-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-b70a67b3aad74fb79f255a614ea79f562025-08-20T03:03:36ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392025-04-0149808689767848Theoretical analysis and optimal design of permanent magnet assisted magnetic gearsSHANGGUAN XuanfengLI ShihaoZHANG LongqiZHAO LeiObjectiveAiming at the problems of low structural strength of surface-mounted magnetic gears and large torque pulsation of convex pole magnetic gears, a permanent magnet assisted magnetic gear was proposed.MethodsFirstly, the basic structure and working principle of the magnetic gear were introduced. The inner rotor adopted a rotor structure similar to that of a permanent magnet assisted reluctance motor. Secondly, an analytical formula for calculating the magnetic flux density distribution of the internal and external air gaps of magnetic gears was derived and obtained, and the characteristics of magnetic gears were analyzed. Finally, multi-objective optimization design was carried out with the goal of increasing the electromagnetic torque and reducing the torque ripple.ResultsIt provide a reference for the design of magnetic gears assisted by permanent magnets.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.011Magnetic gearAnalytic methodAir-gap flux densityMulti-objective optimization
spellingShingle SHANGGUAN Xuanfeng
LI Shihao
ZHANG Longqi
ZHAO Lei
Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
Jixie chuandong
Magnetic gear
Analytic method
Air-gap flux density
Multi-objective optimization
title Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
title_full Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
title_fullStr Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
title_full_unstemmed Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
title_short Theoretical analysis and optimal design of permanent magnet assisted magnetic gears
title_sort theoretical analysis and optimal design of permanent magnet assisted magnetic gears
topic Magnetic gear
Analytic method
Air-gap flux density
Multi-objective optimization
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.04.011
work_keys_str_mv AT shangguanxuanfeng theoreticalanalysisandoptimaldesignofpermanentmagnetassistedmagneticgears
AT lishihao theoreticalanalysisandoptimaldesignofpermanentmagnetassistedmagneticgears
AT zhanglongqi theoreticalanalysisandoptimaldesignofpermanentmagnetassistedmagneticgears
AT zhaolei theoreticalanalysisandoptimaldesignofpermanentmagnetassistedmagneticgears