Elastohydrodynamic lubrication studies on effects of crowning value in roller bearings
| 详细信息 | 推荐本文 | |
- 作者：Xiao-yang Chen (1) chen_x_y@citiz.net
Xue-jin Shen (1)
Wen Xu (2)
Jia-ju Ma (2) - 关键词：Key words roller bearings ; crowning value ; elastohydrodynamic lubrication
- 刊名：Journal of Shanghai University (English Edition)
- 出版时间：March 2001
- 出版年：2001
- 期刊代码：pc596_1007-6417
- 类别：mat
- 卷：5
- 期：1
- 页码：76-81
- 数据来源：sp
摘要
The purpose of this paper is to present a comparison of numerical calculations and experiment results of optical interferome-try in finite line contact for the elastohydrodynamic lubrication(EHL) problem of Lundberg’s profiled cylindrical roller under the conditions of flooded state, moderate load and material parameter. It shows clearly the effects of crowning value on the variations of oil film shape and thickness. The agreement between numerical analysis and experiment results is very good. The results indicate there must be an optimum crowning value that will induce the thickest and most even oil film in EHL state for a given working condition, and this value is larger than the design value in dry contact state for the same working conditions.