Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics

To improve the meshing performance of harmonic reducers and the working performance of robots, a novel tooth profile design method for harmonic gears based on the improved kinematics and transient dynamics is proposed. Firstly, based on the characteristics of common tangent double arc tooth profile...

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Main Authors: Deng Yang, He Xueming, Li Pengchao, Mu Yanming
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2023-11-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.11.006
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author Deng Yang
He Xueming
Li Pengchao
Mu Yanming
author_facet Deng Yang
He Xueming
Li Pengchao
Mu Yanming
author_sort Deng Yang
collection DOAJ
description To improve the meshing performance of harmonic reducers and the working performance of robots, a novel tooth profile design method for harmonic gears based on the improved kinematics and transient dynamics is proposed. Firstly, based on the characteristics of common tangent double arc tooth profile and S-type tooth profile, a new flexible tooth profile is proposed, which is the combination of S-type tooth profile and common tangent double arc tooth profile. Secondly, the tooth profile of the steel gear is calculated based on the improved kinematics method. Finally, the meshing backlash between the different tooth profiles and the stress of flexsplines without considering plastic deformation are analyzed based on the transient dynamics method. Through comparative analysis, it is found that the new tooth profile without considering plastic deformation has smaller meshing backlash and equivalent stress, the minimum meshing backlash is only 0.003 6 mm, the maximum equivalent stress under the given load condition is only 1 211.6 MPa, which are significantly lower than those of the double circular arc tooth profile flexspline, the S-shaped tooth profile flexspline, and the common tangent double circular arc tooth profile. The novel tooth profile design method can effectively improve the transmission performance of harmonic gears, which lays a theoretical foundation for the design of high-performance harmonic gears.
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institution Kabale University
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language zho
publishDate 2023-11-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-57c3fe6b081b4c8e949bf3d2338890682025-01-10T14:59:20ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-11-0147374244815515Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient DynamicsDeng YangHe XuemingLi PengchaoMu YanmingTo improve the meshing performance of harmonic reducers and the working performance of robots, a novel tooth profile design method for harmonic gears based on the improved kinematics and transient dynamics is proposed. Firstly, based on the characteristics of common tangent double arc tooth profile and S-type tooth profile, a new flexible tooth profile is proposed, which is the combination of S-type tooth profile and common tangent double arc tooth profile. Secondly, the tooth profile of the steel gear is calculated based on the improved kinematics method. Finally, the meshing backlash between the different tooth profiles and the stress of flexsplines without considering plastic deformation are analyzed based on the transient dynamics method. Through comparative analysis, it is found that the new tooth profile without considering plastic deformation has smaller meshing backlash and equivalent stress, the minimum meshing backlash is only 0.003 6 mm, the maximum equivalent stress under the given load condition is only 1 211.6 MPa, which are significantly lower than those of the double circular arc tooth profile flexspline, the S-shaped tooth profile flexspline, and the common tangent double circular arc tooth profile. The novel tooth profile design method can effectively improve the transmission performance of harmonic gears, which lays a theoretical foundation for the design of high-performance harmonic gears.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.11.006Harmonic gearImproved kinematicsTransient dynamicsNovel tooth profile designMeshing performance
spellingShingle Deng Yang
He Xueming
Li Pengchao
Mu Yanming
Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
Jixie chuandong
Harmonic gear
Improved kinematics
Transient dynamics
Novel tooth profile design
Meshing performance
title Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
title_full Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
title_fullStr Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
title_full_unstemmed Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
title_short Research on a Novel Tooth Profile Design of Harmonic Gears Based on Improved Kinematics and Transient Dynamics
title_sort research on a novel tooth profile design of harmonic gears based on improved kinematics and transient dynamics
topic Harmonic gear
Improved kinematics
Transient dynamics
Novel tooth profile design
Meshing performance
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.11.006
work_keys_str_mv AT dengyang researchonanoveltoothprofiledesignofharmonicgearsbasedonimprovedkinematicsandtransientdynamics
AT hexueming researchonanoveltoothprofiledesignofharmonicgearsbasedonimprovedkinematicsandtransientdynamics
AT lipengchao researchonanoveltoothprofiledesignofharmonicgearsbasedonimprovedkinematicsandtransientdynamics
AT muyanming researchonanoveltoothprofiledesignofharmonicgearsbasedonimprovedkinematicsandtransientdynamics