Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness

The time-varying meshing stiffness (TVMS)of gear pair is a major parameter of mechanical dynamics analysis, and its accuracy directly affects the accuracy of dynamics analysis results. At first, the formula for computation of shear stiffness is derived theoretically, and it is applied in the case an...

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Main Authors: Junjie Lai, Yanxue Wang, Chaoyang Jiang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2021-04-01
Series:Jixie chuandong
Subjects:
Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.04.004
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author Junjie Lai
Yanxue Wang
Chaoyang Jiang
author_facet Junjie Lai
Yanxue Wang
Chaoyang Jiang
author_sort Junjie Lai
collection DOAJ
description The time-varying meshing stiffness (TVMS)of gear pair is a major parameter of mechanical dynamics analysis, and its accuracy directly affects the accuracy of dynamics analysis results. At first, the formula for computation of shear stiffness is derived theoretically, and it is applied in the case analysis, the obtained result is compared with and the result of finite element analysis, the result shows that the difference is small. Then, a kind of new crack failure model is established, which is called the gear tooth bilateral asymmetrical crack model. On the basis of the energy method based on the accurate full tooth profile, the calculation formula of TVMS of gear tooth bilateral asymmetrical crack model is derived. Then influence of crack shape on TVMS is analyzed. At last, the analysis validation is carried out by finite element method (FEM), and the results indicate, the results of finite element method and energy method are basically the same.
format Article
id doaj-art-61fdb594827a4c79ab37dd2b98130212
institution Kabale University
issn 1004-2539
language zho
publishDate 2021-04-01
publisher Editorial Office of Journal of Mechanical Transmission
record_format Article
series Jixie chuandong
spelling doaj-art-61fdb594827a4c79ab37dd2b981302122025-01-10T14:49:29ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-04-014520288813547Research of the Influence of Spur Gear Tooth Bilateral Crack on Its StiffnessJunjie LaiYanxue WangChaoyang JiangThe time-varying meshing stiffness (TVMS)of gear pair is a major parameter of mechanical dynamics analysis, and its accuracy directly affects the accuracy of dynamics analysis results. At first, the formula for computation of shear stiffness is derived theoretically, and it is applied in the case analysis, the obtained result is compared with and the result of finite element analysis, the result shows that the difference is small. Then, a kind of new crack failure model is established, which is called the gear tooth bilateral asymmetrical crack model. On the basis of the energy method based on the accurate full tooth profile, the calculation formula of TVMS of gear tooth bilateral asymmetrical crack model is derived. Then influence of crack shape on TVMS is analyzed. At last, the analysis validation is carried out by finite element method (FEM), and the results indicate, the results of finite element method and energy method are basically the same.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.04.004TVMSAsymmetrical crack modelAccurate full tooth profileEnergy methodFEM
spellingShingle Junjie Lai
Yanxue Wang
Chaoyang Jiang
Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
Jixie chuandong
TVMS
Asymmetrical crack model
Accurate full tooth profile
Energy method
FEM
title Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
title_full Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
title_fullStr Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
title_full_unstemmed Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
title_short Research of the Influence of Spur Gear Tooth Bilateral Crack on Its Stiffness
title_sort research of the influence of spur gear tooth bilateral crack on its stiffness
topic TVMS
Asymmetrical crack model
Accurate full tooth profile
Energy method
FEM
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.04.004
work_keys_str_mv AT junjielai researchoftheinfluenceofspurgeartoothbilateralcrackonitsstiffness
AT yanxuewang researchoftheinfluenceofspurgeartoothbilateralcrackonitsstiffness
AT chaoyangjiang researchoftheinfluenceofspurgeartoothbilateralcrackonitsstiffness