Analysis of elastohydrodynamic lubrication friction of rolling element bearing

被引：0

作者：

School of Mechanical Engineering & Automation, Northeastern University, Shenyang ^{[1
]}

110819, China

机构：

[1] School of Mechanical Engineering & Automation, Northeastern University, Shenyang

来源：

Dongbei Daxue Xuebao | / 7卷 / 1000-1004期

关键词：

Deep groove ball bearing; Elastohydrodynamic lubrication; Friction coefficient; Point contact; Surface roughness;

D O I：

10.3969/j.issn.1005-3026.2015.07.019

中图分类号：

学科分类号：

摘要：

Based on a set of full non-Newtonian elastohydrodynamic lubrication (EHL) point contact numerical simulation method, the steady and transient EHL characteristics at ball element and raceway elliptical contact in deep groove ball bearing were investigated. According to the results of film pressure and thickness, the effects of surface roughness, surface geometrical morphology (rough surface heights), slide-to-roll ratio, contact load and rolling velocity on the friction coefficient of deep groove ball bearing were discussed. The results show that the effect of surface roughness on the friction coefficient is negligible, while different surface geometrical morphologies have weak influence on the friction coefficient. The friction coefficient increases with the increase of slide-to-roll ratio and the improvement of the contact force and rolling speed lead to the increase of the friction coefficient. ©, 2015, Northeastern University. All right reserved.

引用

页码：1000 / 1004

页数：4

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