Effects of Tooth Surface Crack Propagation on Meshing Stiffness and Vibration Characteristic of Spur Gear System
| Autor: | Liming Wang, Wei-wei Jiang, Lu-ke Zhang, Lantao Yang, Jin Xu, Yimin Shao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
02 engineering and technology Fault (power engineering) lcsh:Technology 01 natural sciences lcsh:Chemistry 0203 mechanical engineering 0103 physical sciences Six degrees of freedom General Materials Science lcsh:QH301-705.5 010301 acoustics Instrumentation surface crack dynamic response Fluid Flow and Transfer Processes gear meshing stiffness lcsh:T business.industry Process Chemistry and Technology General Engineering Tooth surface Fracture mechanics Structural engineering fault diagnosis Spall lcsh:QC1-999 Computer Science Applications Vibration Mechanism (engineering) 020303 mechanical engineering & transports lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 spalling Fault model lcsh:Engineering (General). Civil engineering (General) business lcsh:Physics |
| Zdroj: | Applied Sciences Volume 11 Issue 4 Applied Sciences, Vol 11, Iss 1968, p 1968 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11041968 |
| Popis: | Tooth surface cracks are considered as the early stage of the development of tooth surface spalling failure. Understanding the excitation mechanism of surface cracks has a great significance in the early diagnosis of spalling faults. However, there are few studies on the dynamic modelling of surface cracks, and the influence mechanism of surface cracking on the dynamic characteristics of a gear system is also not yet clear during its propagation process. Thus, an analytical calculation model of the meshing stiffness of gear with tooth surface crack is developed. Then, a dynamic model of a spur gear system with six degrees of freedom (DOF) is established based on the proposed surface crack calculation model. The effects of surface crack propagation on the meshing stiffness and dynamic characteristics of gear system are investigated. The results show that the side frequencies of dynamic transmission error (DTE) are more sensitive than those of the acceleration responses during the surface crack propagation, which is more favorable to the surface crack fault diagnosis. Compared to the traditional spalling fault model, the proposed model can accurately characterize the dynamic characteristics of a gear system with the early spalling defect. |
| Databáze: | OpenAIRE |
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