Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear

Eccentric magnetic harmonic gears (EMHG) can achieve high speed ratio transmission and large torque output by modulating the air gap length between permanent magnets (PM). The analytical method is based on the boundary perturbation method. The vector magnetic potential perturbation equation in the a...

Full description

Bibliographic Details
Main Authors: Libing Jing, Jun Gong, Tong Ben
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9001080/
_version_ 1818736591722512384
author Libing Jing
Jun Gong
Tong Ben
author_facet Libing Jing
Jun Gong
Tong Ben
author_sort Libing Jing
collection DOAJ
description Eccentric magnetic harmonic gears (EMHG) can achieve high speed ratio transmission and large torque output by modulating the air gap length between permanent magnets (PM). The analytical method is based on the boundary perturbation method. The vector magnetic potential perturbation equation in the air gap region is established, and the general solution is obtained using the boundary conditions. According to the superposition principle, the air gap flux density of stator and rotor PMs acting alone is synthesized, and the electromagnetic torque and unbalanced magnetic pull are calculated. Last, we compare magnetic field distributions, electromagnetic torque and unbalanced magnetic pull computed by the analytical method with those obtained from finite-element method (FEM).
first_indexed 2024-12-18T00:39:35Z
format Article
id doaj.art-c1424ebf66804ba4aff6e49c209d4136
institution Directory Open Access Journal
issn 2169-3536
language English
last_indexed 2024-12-18T00:39:35Z
publishDate 2020-01-01
publisher IEEE
record_format Article
series IEEE Access
spelling doaj.art-c1424ebf66804ba4aff6e49c209d41362022-12-21T21:26:56ZengIEEEIEEE Access2169-35362020-01-018342363424510.1109/ACCESS.2020.29747779001080Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic GearLibing Jing0https://orcid.org/0000-0002-4457-9857Jun Gong1Tong Ben2College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaCollege of Electrical Engineering and New Energy, China Three Gorges University, Yichang, ChinaEccentric magnetic harmonic gears (EMHG) can achieve high speed ratio transmission and large torque output by modulating the air gap length between permanent magnets (PM). The analytical method is based on the boundary perturbation method. The vector magnetic potential perturbation equation in the air gap region is established, and the general solution is obtained using the boundary conditions. According to the superposition principle, the air gap flux density of stator and rotor PMs acting alone is synthesized, and the electromagnetic torque and unbalanced magnetic pull are calculated. Last, we compare magnetic field distributions, electromagnetic torque and unbalanced magnetic pull computed by the analytical method with those obtained from finite-element method (FEM).https://ieeexplore.ieee.org/document/9001080/Eccentric magnetic harmonic gearanalytical methodmagnetic fieldelectromagnetic torqueFEM
spellingShingle Libing Jing
Jun Gong
Tong Ben
Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
IEEE Access
Eccentric magnetic harmonic gear
analytical method
magnetic field
electromagnetic torque
FEM
title Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
title_full Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
title_fullStr Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
title_full_unstemmed Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
title_short Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear
title_sort analytical method for magnetic field of eccentric magnetic harmonic gear
topic Eccentric magnetic harmonic gear
analytical method
magnetic field
electromagnetic torque
FEM
url https://ieeexplore.ieee.org/document/9001080/
work_keys_str_mv AT libingjing analyticalmethodformagneticfieldofeccentricmagneticharmonicgear
AT jungong analyticalmethodformagneticfieldofeccentricmagneticharmonicgear
AT tongben analyticalmethodformagneticfieldofeccentricmagneticharmonicgear