Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear

For permanent magnetic gears (PMGs), each transmission ratio can be made by several combinations of the numbers of magnetic pole pairs (NMPP) on the driving and driven rotors. In order to investigate the influence of NMPP on transmission efficiency and output torque, transmission ratio <italic>...

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Main Authors: Lei Xiao, Hai Zhang, Baoyu Xu, Chengzhe Wang, Xiaoru Hao
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2019-05-01
Series:Jixie chuandong
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Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.05.001
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author Lei Xiao
Hai Zhang
Baoyu Xu
Chengzhe Wang
Xiaoru Hao
author_facet Lei Xiao
Hai Zhang
Baoyu Xu
Chengzhe Wang
Xiaoru Hao
author_sort Lei Xiao
collection DOAJ
description For permanent magnetic gears (PMGs), each transmission ratio can be made by several combinations of the numbers of magnetic pole pairs (NMPP) on the driving and driven rotors. In order to investigate the influence of NMPP on transmission efficiency and output torque, transmission ratio <italic>i</italic>=5 is selected, PMGs with 6 combinations of NMPP and corresponding two groups (each group has 6 combinations) are analyzed, the 6 combinations of NMPP on driving/driven rotors are 2/10, 3/15, …, 7/35. Finite element analysis (FEA)simulations indicate that variations of output torque to NMPP on driving rotor (<italic>P<sub>h</sub></italic>) are quadratic curves with peak values occurring at <italic>P<sub>h</sub></italic>=4, variations of transmission efficiency to Ph also show quadratic curves basically but with slow change and a little higher values occurring at <italic>P<sub>h</sub></italic>=4~7. So it is concluded that considering output torque and transmission efficiency together, for PMGs with transmission ratio i being close to 5, the NMPP on driving/driven rotors (<italic>P<sub>h </sub></italic>/<italic>P</italic><sub>l</sub>) should be selected as 4/19 to get a better transmission characteristics.
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institution Kabale University
issn 1004-2539
language zho
publishDate 2019-05-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-a22918fb92ed438888923f88afdb589c2025-01-10T14:00:31ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392019-05-01431530644872Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic GearLei XiaoHai ZhangBaoyu XuChengzhe WangXiaoru HaoFor permanent magnetic gears (PMGs), each transmission ratio can be made by several combinations of the numbers of magnetic pole pairs (NMPP) on the driving and driven rotors. In order to investigate the influence of NMPP on transmission efficiency and output torque, transmission ratio <italic>i</italic>=5 is selected, PMGs with 6 combinations of NMPP and corresponding two groups (each group has 6 combinations) are analyzed, the 6 combinations of NMPP on driving/driven rotors are 2/10, 3/15, …, 7/35. Finite element analysis (FEA)simulations indicate that variations of output torque to NMPP on driving rotor (<italic>P<sub>h</sub></italic>) are quadratic curves with peak values occurring at <italic>P<sub>h</sub></italic>=4, variations of transmission efficiency to Ph also show quadratic curves basically but with slow change and a little higher values occurring at <italic>P<sub>h</sub></italic>=4~7. So it is concluded that considering output torque and transmission efficiency together, for PMGs with transmission ratio i being close to 5, the NMPP on driving/driven rotors (<italic>P<sub>h </sub></italic>/<italic>P</italic><sub>l</sub>) should be selected as 4/19 to get a better transmission characteristics.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.05.001Radial modulatedPermanent magnetic gearOutput torqueTransmission efficiencyFinite element analysis
spellingShingle Lei Xiao
Hai Zhang
Baoyu Xu
Chengzhe Wang
Xiaoru Hao
Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
Jixie chuandong
Radial modulated
Permanent magnetic gear
Output torque
Transmission efficiency
Finite element analysis
title Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
title_full Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
title_fullStr Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
title_full_unstemmed Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
title_short Study on Influence of Number of Permanent Magnetic Pole Pair on Transmission Characteristic of Radial Modulated Permanent Magnetic Gear
title_sort study on influence of number of permanent magnetic pole pair on transmission characteristic of radial modulated permanent magnetic gear
topic Radial modulated
Permanent magnetic gear
Output torque
Transmission efficiency
Finite element analysis
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2019.05.001
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AT haizhang studyoninfluenceofnumberofpermanentmagneticpolepairontransmissioncharacteristicofradialmodulatedpermanentmagneticgear
AT baoyuxu studyoninfluenceofnumberofpermanentmagneticpolepairontransmissioncharacteristicofradialmodulatedpermanentmagneticgear
AT chengzhewang studyoninfluenceofnumberofpermanentmagneticpolepairontransmissioncharacteristicofradialmodulatedpermanentmagneticgear
AT xiaoruhao studyoninfluenceofnumberofpermanentmagneticpolepairontransmissioncharacteristicofradialmodulatedpermanentmagneticgear