| Elastohydrodynamic Lubrication Studies on Effects of Crowning Value in Roller Bearings |
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| 作者姓名： | CHENXiao－yang SHENXue－jin |
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| 作者单位： | SchoolofElectromechanicalEngineeringandAutomation,ShanghaiUniversity,Shanghai200072,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina!
(5 9475 0 37)，theScienceFoundationofShanghaiMunicipal
CommissionofScienceandTec |
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| 摘 要： | The purpose of this paper is to present a comparison of numerical calculations and experiment results of optical interferometry 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 coditiona.
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| 关 键 词： | 弹性液动润滑 滚珠轴承 凸起效应 |
| 收稿时间： | 8 May 2000 |
Elastohydrodynamic lubrication studies on effects of crowning value in roller bearings |
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| Xiao-yang Chen Ph. D.,Xue-jin Shen,Wen Xu,Jia-ju Ma.Elastohydrodynamic Lubrication Studies on Effects of Crowning Value in Roller Bearings[J].Journal of Shanghai University(English Edition),2001,5(1):76-81. |
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| Authors: | Xiao-yang Chen Ph D Xue-jin Shen Wen Xu Jia-ju Ma |
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| Institution: | 1. School of Electromechanical Engineering and Automation, Shanghai University,
2. Department of Mechanical Engineering, Zhejiang University, |
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| Abstract: | The purpose of this paper is to present a comparison of numerical calculations and experiment results of optical interferometry 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. |
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| Keywords: | roller bearings crowning value elastohydrodynamic lubrication |
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