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Research Article | Open Access

A combined experimental and analytical method to determine the EHL friction force distribution between rollers and outer raceway in a cylindrical roller bearing

Yu HOU1, Xi WANG1( ), Di YANG1, Zeliang XIAO2
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Hunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha 410114, China
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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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Keywords

cylindrical roller bearing (CRB)elastohydrodynamic lubrication (EHL)friction force distributionfriction torquecombined method

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Friction
Volume 11 Issue 8,
August 2023
Pages 1455-1469
DOI: 10.1007/s40544-022-0678-6

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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, 2023, 11(8): 1455-1469. https://doi.org/10.1007/s40544-022-0678-6

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Received: 12 March 2022
Revised: 17 June 2022
Accepted: 20 July 2022
Published: 17 January 2023
© The author(s) 2022.

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