PMMA-玻璃面接触流体润滑特性研究  

On the Hydrodynamic Lubrication of PMMA-Glass Conformal Contacts

作　　者：沈万辉[1] 郭峰[1] 李霞[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》2010年第12期74-77,共4页Lubrication Engineering

基　　金：教育部新世纪优秀人才支持计划(NCET-07-0474)

摘　　要：以静止的PMMA平面滑块和旋转的光学透明玻璃盘为润滑副,利用基于光干涉原理的微型面接触润滑油膜测量系统,对PMMA-玻璃形成的润滑油膜厚度及形状进行测量。结果表明,由于润滑面的低弹性,在润滑油膜压力作用下固体表面发生明显的弹性变形,该变形随速度、载荷和PMMA滑块倾角的变化而变化;油膜厚度随速度的增加而明显增加,随载荷增加明显降低,滑块倾角对油膜形状也有明显影响。With a rotating transparent disc sliding against a stationary PMMA flat slider,the oil film thickness and shape between PMMA and glass were measured using an apparatus of interferometry.The results show that due to the low elastic modulus of the contact surfaces,there is clear elastic deformation on the contact surfaces under the oil film pressure,and the elastic deformation is influenced by speeds,loads and angles of the slider.The oil film thickness increases significantly with increasing speeds,and decreasing loads.The slider inclination also has clear influence on the film shape.

关 键 词：软材料 油膜厚度测量 弹性变形 

分 类 号：TH117[机械工程—机械设计及理论]