Effect of friction coefficients on the dynamic response of gear systems
- 84 Downloads
The inevitable deterioration of the lubrication conditions in a gearbox in service can change the tribological properties of the meshing teeth. In turn, such changes can significantly affect the dynamic responses and running status of gear systems. This paper investigates such an effect by utilizing virtual prototype technology to model and simulate the dynamics of a wind turbine gearbox system. The change in the lubrication conditions is modeled by the changes in the friction coefficients, thereby indicating that poor lubrication causes not only increased frictional losses but also significant changes in the dynamic responses. These results are further demonstrated by the mean and root mean square values calculated by the simulated responses under different friction coefficients. In addition, the spectrum exhibits significant changes in the first, second, and third harmonics of the meshing components. The findings and simulation method of this study provide theoretical bases for the development of accurate diagnostic techniques.
Keywordsdynamic response friction coefficient wind loads wind turbine gearbox
Unable to display preview. Download preview PDF.
This work was supported by the National Natural Science Foundation of China (Grant No. 51575177), the China Scholarship Council, the China Postdoctoral Science Foundation, and the Science and Technology Department of Hunan Province (Grant No. 2015JC3108).
- 1.Facing up to the Gearbox Challenge: A survey of gearbox failure and collected industry Knowledge. Windpower Monthly, 2005, 21 (11)Google Scholar
- 3.Gao X. Finite element contact analysis of meshing gears in gearbox of wind turbine generator. Dissertation for the Doctoral Degree. Dalian: Dalian University of Technology, 2008 (in Chinese)Google Scholar
- 4.Shan G. Research on condition monitoring and fault diagnosis of MW wind turbine. Dissertation for the Doctoral Degree. Shenyang: Shenyang University of Technology, 2011 (in Chinese)Google Scholar
- 6.Vaishya M, Houser R. Modeling and analysis of sliding friction in gear dynamics. In: Proceedings of the ASME Design Engineering Technical Conferences. Baltemore, 2000, 200, 601–610Google Scholar
- 7.Houser D R, Vaishya M, Sorenson J D. Vibro-Acoustic Effects of Friction in Gears: An Experimental Investigation. SAE Technical Paper 2001-01-1516. 2001Google Scholar
- 9.Blankenship G W, Singh R. A comparative study of selected gear mesh force interface dynamic models. In: Proceedings of the 6th ASME International Power Transmission and Gearing Conference. Phoenix, 1992Google Scholar
- 10.Chen L. Dynamic Analysis of Mechanical System and ADAMS Application. Beijing: Tsinghua University Press, 2005 (in Chinese)Google Scholar
- 11.Yin S. Study on mechanical properties locomotive traction gear based on tribology. Dissertation for the Doctoral Degree. Dalian: Dalian Jiaotong University, 2013 (in Chinese)Google Scholar
- 12.Xu H. Development of a generalized mechanical efficiency prediction methodology for gear pairs. Dissertation for the Doctoral Degree. Ohio: The Ohio State University, 2005Google Scholar
- 14.Rebbechi B, Oswald F B, Townsend D P. Measurement of Gear Tooth Dynamic Friction. NASA Technical Report ARL-TR-1165. 1996Google Scholar
- 15.Liu G. Nonlinear dynamics of multi-mesh gear systems. Dissertation for the Doctoral Degree. Ohio: The Ohio State University, 2007Google Scholar
- 16.Liang X. Dynamic characteristics research based on load spectrum of megawatt level wind turbine gearbox. Dissertation for the Doctoral Degree. Chongqing: Chongqing University, 2013 (in Chinese)Google Scholar