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

Autor: Yu Hou, Xi Wang, Di Yang, Zeliang Xiao
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Friction, Vol 11, Iss 8, Pp 1455-1469 (2023)
Druh dokumentu: article
ISSN: 2223-7690
2223-7704
DOI: 10.1007/s40544-022-0678-6
Popis: 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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