Research on Vibration Characteristics of Spur Gear System with Pitting Fault Considering the Elastohydrodynamic Lubrication Condition
Pitting fault is easily observed in gear system, dynamics models are commonly established to study the vibration characteristics affected by pitting fault. However, most of the dynamics models ignore the elastohydrodynamic lubrication (EHL) in gear system, which plays an important role in early fati...
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Published in | 2018 18th International Conference on Control, Automation and Systems (ICCAS) pp. 1295 - 1299 |
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Main Authors | , , , , |
Format | Conference Proceeding |
Language | English |
Published |
Institute of Control, Robotics and Systems - ICROS
01.10.2018
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Abstract | Pitting fault is easily observed in gear system, dynamics models are commonly established to study the vibration characteristics affected by pitting fault. However, most of the dynamics models ignore the elastohydrodynamic lubrication (EHL) in gear system, which plays an important role in early fatigue failure of gears. Therefore, a dynamics model is proposed to study the vibration characteristics of spur gear system with pitting fault based on the three-dimensional line contact elastohydrodynamic lubrication (3D-EHL) model. In this model, both the transverse torsional dynamics model with gear pitting fault and the 3D-EHL model are coupled through an iterative method. Firstly, the transient rolling and sliding velocity, radius of curvature, and dynamic tooth force will be calculated based on the transverse torsional dynamics model, and which are then applied in the 3D-EHL model to perform contact analysis on a single continuously meshing teeth pair. Secondly, the transient pressure and film thickness distribution calculated based on the 3D-EHL model are used to determine the rolling, sliding friction, and viscous damping of the gear pair. After that, these parameters are substituted into the dynamics model to obtain the vibration characteristics of gear system with pitting fault. Finally, different working conditions are compared based on the proposed model, the results show that the EHL has an effect on the vibration characteristics of gear system with pitting fault. |
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AbstractList | Pitting fault is easily observed in gear system, dynamics models are commonly established to study the vibration characteristics affected by pitting fault. However, most of the dynamics models ignore the elastohydrodynamic lubrication (EHL) in gear system, which plays an important role in early fatigue failure of gears. Therefore, a dynamics model is proposed to study the vibration characteristics of spur gear system with pitting fault based on the three-dimensional line contact elastohydrodynamic lubrication (3D-EHL) model. In this model, both the transverse torsional dynamics model with gear pitting fault and the 3D-EHL model are coupled through an iterative method. Firstly, the transient rolling and sliding velocity, radius of curvature, and dynamic tooth force will be calculated based on the transverse torsional dynamics model, and which are then applied in the 3D-EHL model to perform contact analysis on a single continuously meshing teeth pair. Secondly, the transient pressure and film thickness distribution calculated based on the 3D-EHL model are used to determine the rolling, sliding friction, and viscous damping of the gear pair. After that, these parameters are substituted into the dynamics model to obtain the vibration characteristics of gear system with pitting fault. Finally, different working conditions are compared based on the proposed model, the results show that the EHL has an effect on the vibration characteristics of gear system with pitting fault. |
Author | Du, Minggang Deng, Chunlong Shao, Yimin Zheng, Hongling Yang, Yang |
Author_xml | – sequence: 1 givenname: Chunlong surname: Deng fullname: Deng, Chunlong organization: State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China – sequence: 2 givenname: Yimin surname: Shao fullname: Shao, Yimin organization: State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China – sequence: 3 givenname: Hongling surname: Zheng fullname: Zheng, Hongling organization: State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing, China – sequence: 4 givenname: Minggang surname: Du fullname: Du, Minggang organization: China North Vehicle Research Institute, Beijing, China – sequence: 5 givenname: Yang surname: Yang fullname: Yang, Yang organization: China North Vehicle Research Institute, Beijing, China |
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Snippet | Pitting fault is easily observed in gear system, dynamics models are commonly established to study the vibration characteristics affected by pitting fault.... |
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SubjectTerms | 3D-EHL Dynamics Friction Gear Gears Lubrication Pitting fault Surface topography Vehicle dynamics Vibration characteristics Vibrations |
Title | Research on Vibration Characteristics of Spur Gear System with Pitting Fault Considering the Elastohydrodynamic Lubrication Condition |
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