界面黏附功与润滑油膜厚度的相关性研究  

Correlation of Interface Adhesion Work and Hydrodynamic Lubrication

作　　者：王志君[1] 郭峰[1] 田鹏晖 

机构地区：[1]青岛理工大学机械工程学院,山东青岛266520

出　　处：《润滑与密封》2016年第12期52-56,73,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(51275252);博士点基金项目(20133721110002;20133721110003)

摘　　要：利用不同的润滑剂与不同的滑块表面组合成亲和性不同的界面,在不同载荷下,使用面接触润滑油膜光学测量系统对各界面组合的油膜厚度-速度关系进行测量。以黏附功来评价固液界面亲和性,研究固液界面亲和性与流体动压润滑油膜的相关性。试验结果表明:接触角与接触角滞后不能作为判定界面润湿性与油膜厚度关系的唯一参数,且对于黏度相似的润滑液体,高黏附功更易产生高油膜厚度;载荷对界面效应也有影响,且载荷较高时,界面效应比较明显。The interfaces with different affinity were generated with different materials of slider surfaces and different lu- bricants.Under different loads, the relation of film thickness versus speed was measured for different interfaces.The inter- face affinity was differentiated by the adhesive work, and the correlation of interface affinity and hydrodynamic lubrication was studied.The results show that the contact angle and contact angle hysteresis aren＇ t the only parameter to judge the re- lationship between interface affinity and film thickness.High adhesion work is more likely to produce high film thickness for the similar viscosity of lubricants.Loads can influence the interface effect and heavy loads can enhance the interface effect.

关 键 词：面接触 界面亲和性 黏附功 油膜厚度 

分 类 号：TH117[机械工程—机械设计及理论]