Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect

Coaxial Magnetic Gear (CMG) has unstable dynamic characteristics by hunting or pull-out action of the output rotor when the load or speed are changed, unlike traditional mechanical gears. These dynamic characteristics need to be improved in order to secure the reliability of mechanical power transmi...

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Main Authors: Seokhoon Jo, Homin Shin, Junghwan Chang
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9740120/
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author Seokhoon Jo
Homin Shin
Junghwan Chang
author_facet Seokhoon Jo
Homin Shin
Junghwan Chang
author_sort Seokhoon Jo
collection DOAJ
description Coaxial Magnetic Gear (CMG) has unstable dynamic characteristics by hunting or pull-out action of the output rotor when the load or speed are changed, unlike traditional mechanical gears. These dynamic characteristics need to be improved in order to secure the reliability of mechanical power transmission system by fast and accurate response. In this paper, the damper bar used in synchronous machines is considered as a method to improve the dynamic characteristics of CMG. The Surface-mounted Permanent Magnet (SPM) type CMG is selected as the analysis model. The space harmonics of the magnetic flux density of stationary and rotary members of CMG namely, modulating pieces, inner and outer rotor, are analyzed and characterized the influence of them on the improvement of dynamic characteristics as well as torque reduction. Also, the magnetic flux density characteristics and the damping effect are compared according to the position of the damper bars on two rotors and the modulating pieces. In conclusion, the considerations about the perspective for design and application are presented when using the damper bar for SPM type CMG.
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spelling doaj.art-5bf0224b6b1144518137a517e2023e432022-12-21T18:20:48ZengIEEEIEEE Access2169-35362022-01-0110336163362710.1109/ACCESS.2022.31616339740120Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation EffectSeokhoon Jo0https://orcid.org/0000-0002-4845-8235Homin Shin1https://orcid.org/0000-0001-8088-0551Junghwan Chang2https://orcid.org/0000-0002-2598-3950Department of Electrical Engineering, Mechatronics System Research Laboratory, Dong-A University, Busan, South KoreaDepartment of Electrical Engineering, Masan University, Changwon, South KoreaDepartment of Electrical Engineering, Mechatronics System Research Laboratory, Dong-A University, Busan, South KoreaCoaxial Magnetic Gear (CMG) has unstable dynamic characteristics by hunting or pull-out action of the output rotor when the load or speed are changed, unlike traditional mechanical gears. These dynamic characteristics need to be improved in order to secure the reliability of mechanical power transmission system by fast and accurate response. In this paper, the damper bar used in synchronous machines is considered as a method to improve the dynamic characteristics of CMG. The Surface-mounted Permanent Magnet (SPM) type CMG is selected as the analysis model. The space harmonics of the magnetic flux density of stationary and rotary members of CMG namely, modulating pieces, inner and outer rotor, are analyzed and characterized the influence of them on the improvement of dynamic characteristics as well as torque reduction. Also, the magnetic flux density characteristics and the damping effect are compared according to the position of the damper bars on two rotors and the modulating pieces. In conclusion, the considerations about the perspective for design and application are presented when using the damper bar for SPM type CMG.https://ieeexplore.ieee.org/document/9740120/Coaxial magnetic geardamper bardynamic analysismagnetic field modulation effectspace harmonics
spellingShingle Seokhoon Jo
Homin Shin
Junghwan Chang
Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
IEEE Access
Coaxial magnetic gear
damper bar
dynamic analysis
magnetic field modulation effect
space harmonics
title Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
title_full Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
title_fullStr Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
title_full_unstemmed Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
title_short Dynamic Analysis of Surface-Mounted Permanent Magnet Type Coaxial Magnetic Gear With Damper Bar Considering Magnetic Field Modulation Effect
title_sort dynamic analysis of surface mounted permanent magnet type coaxial magnetic gear with damper bar considering magnetic field modulation effect
topic Coaxial magnetic gear
damper bar
dynamic analysis
magnetic field modulation effect
space harmonics
url https://ieeexplore.ieee.org/document/9740120/
work_keys_str_mv AT seokhoonjo dynamicanalysisofsurfacemountedpermanentmagnettypecoaxialmagneticgearwithdamperbarconsideringmagneticfieldmodulationeffect
AT hominshin dynamicanalysisofsurfacemountedpermanentmagnettypecoaxialmagneticgearwithdamperbarconsideringmagneticfieldmodulationeffect
AT junghwanchang dynamicanalysisofsurfacemountedpermanentmagnettypecoaxialmagneticgearwithdamperbarconsideringmagneticfieldmodulationeffect