Abstract
Friction force is a crucial factor causing power loss and fatigue spalling of rolling element bearings. A combined experimental and analytical method is proposed to quantitatively determine the elastohydrodynamic lubrication (EHL) friction force distribution between rollers and outer raceway in a cylindrical roller bearing (CRB). An experimental system with the instrumented bearing and housing was developed for measuring radial load distribution and friction torque of bearings. A simplified model of friction force expressed by dimensionless speed, load, and material parameters was given. An inequality constrained optimization problem was established and solved by using an experimental data-driven learning algorithm for determining the uncertain parameters in the model. The effect of speed, load, and lubricant property on friction force and friction coefficient was discussed.
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This research is supported by the Joint Funds of the National Natural Science Foundation of China (Grant No. U1834202).
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Yu HOU. He received his Ph.D. degree in mechanical engineering from Beijing Jiaotong University, Beijing, China, in 2022. Now he works as a postdoctoral fellow in Frontier Science Center of Intelligent High-speed Rail System at Beijing Jiaotong University. His research focuses on the measurement technology of contact mechanical parameters in rolling element bearings.
Xi WANG. He received his Ph.D. degree in engineering science from Harvard University, Cambridge, USA, in 2007. He was a postdoc at Harvard University, Cambridge, USA, and Johns Hopkins University, Baltimore, USA, from 2007 to 2009. He then worked as an associate professor at Institute of Mechanics, Chinese Academy of Sciences, Beijing, China. He has joined the School of Mechanical, Electronic and Control Engineering of Beijing Jiaotong University, Beijing, China, as a full professor since 2013. His research areas cover the condition monitoring and reliability assessment of rolling element bearings in drivetrain as well as the mechanics of materials and structures in railway vehicles.
Di YANG. He received his bachelor’s degree in mechanical engineering in 2018 from Beijing Jiaotong University, Beijing, China. Currently he is a Ph.D. candidate at Beijing Jiaotong University. His research interests include rolling element bearing dynamics and elastohydrodynamic lubrication.
Zeliang XIAO. He received his Ph.D. degree in mechanical engineering in 2021 from Shanghai Jiaotong University, Shanghai, China. He works as a lecturer at the College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha, China, now. His research focuses on the elastohydrodynamic lubrication and tribo-dynamics in involute gears and rolling element bearings.
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Hou, Y., Wang, X., Yang, D. et al. A combined experimental and analytical method to determine the EHL friction force distribution between rollers and outer raceway in a cylindrical roller bearing. Friction 11, 1455–1469 (2023). https://doi.org/10.1007/s40544-022-0678-6
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DOI: https://doi.org/10.1007/s40544-022-0678-6