圆锥滚子的等温弹流润滑数值分析  

Numerical Analysis of Isothermal EHL for Tapered Roller

作　　者：杨萍[1] 杨沛然[1] 刘晓玲[1] 

机构地区：[1]青岛理工大学机械工程学院,山东青岛266033

出　　处：《摩擦学学报》2005年第5期456-460,共5页Tribology

基　　金：山东省自然科学基金资助项目(Z2003F01);青岛市科技局研究基金资助项目(03-2-JZP-15)

摘　　要：通过数值求解研究了圆台与平面之间的等温弹流润滑问题,分析了两固体所形成的弹流润滑区内压力和膜厚分布曲面,并且讨论了端部修形对接触区内压力和膜厚的影响.结果表明:由于圆锥滚子几何形状的特点,导致接触区内压力和膜厚的分布曲面出现斜度;圆锥滚子的端部修形可以降低端部高压,增加端部油膜厚度.Isothermal elastohydrodynamic lubrication （EHL） between a tapered roller and an infinite plane was investigated. Distributions of the EHL pressure and film thickness in the contact were analyzed. Influences of the end modification on pressures and film thicknesses were discussed. It is found from numerical results that, geometrical characteristics of tapered roller can lead to conical shaped distributions of EHL pressures and film thicknesses. It is also found that end modification decreases high pressures and increases film thicknesses in the regions of roller＇s ends.

关 键 词：圆锥滚子 等温 弹流润滑 端部修形 

分 类 号：TH117.22[机械工程—机械设计及理论]