Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition
When cracks are initiated in a helical gear pair, the mesh stiffness and vibration response of the gear pair will be affected. Unlike previous studies on gear crack, in which only the transverse gear stiffnesses are calculated due to gear crack, or purely uniformly distributed gear crack are modelle...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/161788 |
| _version_ | 1826118425224675328 |
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| author | Wang, Siyu Zhu, Rupeng Xiao, Zhongmin |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wang, Siyu Zhu, Rupeng Xiao, Zhongmin |
| author_sort | Wang, Siyu |
| collection | NTU |
| description | When cracks are initiated in a helical gear pair, the mesh stiffness and vibration response of the gear pair will be affected. Unlike previous studies on gear crack, in which only the transverse gear stiffnesses are calculated due to gear crack, or purely uniformly distributed gear crack are modelled, however, in the current study, an improved model is proposed for the calculation of mesh stiffness of helical gear system due to gear crack, in which the gear tooth stiffness, and gear foundation stiffness in both transverse and axial direction have been comprehensively considered. Two typical cracking cases, namely, the addendum extended crack and end face extended crack have been investigated. Furthermore, the analytical mesh stiffness calculation results are validated with the simulated results that obtained from finite-element method, both results show acceptable coincidence. Based on the proposed method, the dynamic model of the cracked helical gear system has been established to analyze the vibration response of the system with the propagation of gear cracks. The obtained results indicate that cracks in gear could cause substantial mesh stiffness reduction. The vibration response in time-domain experience sudden change when the cracked gear tooth is engaged in mesh, and the spectrum shows that the side frequency components become more abundant with higher amplitude under more severe crack conditions. The findings in our study have wide applications in vibration-based fault diagnosis of helical gear systems. |
| first_indexed | 2024-10-01T04:43:12Z |
| format | Journal Article |
| id | ntu-10356/161788 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:43:12Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1617882022-09-20T04:39:29Z Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition Wang, Siyu Zhu, Rupeng Xiao, Zhongmin School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Helical Gear Pair Crack Propagation Path When cracks are initiated in a helical gear pair, the mesh stiffness and vibration response of the gear pair will be affected. Unlike previous studies on gear crack, in which only the transverse gear stiffnesses are calculated due to gear crack, or purely uniformly distributed gear crack are modelled, however, in the current study, an improved model is proposed for the calculation of mesh stiffness of helical gear system due to gear crack, in which the gear tooth stiffness, and gear foundation stiffness in both transverse and axial direction have been comprehensively considered. Two typical cracking cases, namely, the addendum extended crack and end face extended crack have been investigated. Furthermore, the analytical mesh stiffness calculation results are validated with the simulated results that obtained from finite-element method, both results show acceptable coincidence. Based on the proposed method, the dynamic model of the cracked helical gear system has been established to analyze the vibration response of the system with the propagation of gear cracks. The obtained results indicate that cracks in gear could cause substantial mesh stiffness reduction. The vibration response in time-domain experience sudden change when the cracked gear tooth is engaged in mesh, and the spectrum shows that the side frequency components become more abundant with higher amplitude under more severe crack conditions. The findings in our study have wide applications in vibration-based fault diagnosis of helical gear systems. This work is supported by the National Natural Science Foundation of China (Grant No. 51775265, 51775277), and the China Scholarship Council (202006830075). 2022-09-20T04:39:29Z 2022-09-20T04:39:29Z 2022 Journal Article Wang, S., Zhu, R. & Xiao, Z. (2022). Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition. Ocean Engineering, 250, 110972-. https://dx.doi.org/10.1016/j.oceaneng.2022.110972 0029-8018 https://hdl.handle.net/10356/161788 10.1016/j.oceaneng.2022.110972 2-s2.0-85125958317 250 110972 en Ocean Engineering © 2022 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Helical Gear Pair Crack Propagation Path Wang, Siyu Zhu, Rupeng Xiao, Zhongmin Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title | Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title_full | Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title_fullStr | Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title_full_unstemmed | Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title_short | Investigation on crack failure of helical gear system of the gearbox in wind turbine: mesh stiffness calculation and vibration characteristics recognition |
| title_sort | investigation on crack failure of helical gear system of the gearbox in wind turbine mesh stiffness calculation and vibration characteristics recognition |
| topic | Engineering::Mechanical engineering Helical Gear Pair Crack Propagation Path |
| url | https://hdl.handle.net/10356/161788 |
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