摘要
数值模拟接触固体的横向振动对点接触热弹性流体动力润滑的影响。结果揭示出接触固体的微小横向振动就会造成接触区中油膜压力、膜厚和温度的显著变化,接触区中产生多重凹陷并不断移动。重载下由于动态效应产生的凹陷的移动和合并及热效应的作用,使得膜厚不但不随载荷的增加而减小,反而随载荷的增加而增加。
The influence of the transverse vibration of the contact solid on point contact thermal elastohydrodynamic lu-brication（EHL）was explored numerically. It is revealed that a tiny transverse vibration of the solid can cause significant changes in oil film pressure,film thickness and temperature,and multi-dimple featured film profile is formed and moved in the contact zone. Due to thermal effect,film thickness is increased but not decreased with the increase of load.
出处
《润滑与密封》
CAS
CSCD
北大核心
2014年第8期1-7,共7页
Lubrication Engineering
基金
国家自然科学基金项目(51305221)
关键词
热弹性流体动力润滑
点接触
时变效应
油膜凹陷
横向振动
thermal elastohydrodynamic lubrication
point contact
transient effect
dimple
transverse vibration
