线接触往复运动的热弹流润滑特性研究  

A Study on the Thermal Elastohydrodynamic Lubrication in Line Contact under Reciprocating Motion

作　　者：杨志强[1] 王静[1] 杨沛然[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：《润滑与密封》2008年第2期9-12,共4页Lubrication Engineering

基　　金：国家自然科学基金项目(50575108)

摘　　要：应用数值分析方法求解了线接触往复运动工况下的热弹性流体动力润滑特性。假设所研究的润滑油服从Ree-Eyring流变模型。计算结果显示:由于挤压效应,油膜在行程末端形成凹陷。在行程中由于楔形效应和挤压效应的共同作用出现波动。即使油膜中温升很小,热效应对摩擦因数和膜厚仍起重要作用。Using numerical techniques,the thermal elastohydrodynamic lubrication(EHL) in line contact under reciprocating motion was investigated.The oil used was assumed to be Ree-Eyring fluid.It is revealed that the oil film is entrapped at stroke end due to squeeze effect and breathes cyclically because of the combined wedge and squeeze actions.There is a significant discrepancy between transient and steady-state solutions.Even though the temperature rise is small,thermal effect plays an important role in the tract...

关 键 词：线接触 热弹流润滑 往复运动 

分 类 号：TH117.2[机械工程—机械设计及理论]