The film forming behavior at high speeds under oil-air lubrication

被引：27
|
作者：
Liang, He [1 ]
Guo, Dan [1 ]
Ma, Liran [1 ]
Luo, Jianbin [1 ]
机构：
[1] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2015年 / 91卷
基金：
中国国家自然科学基金;
关键词：
High speeds; Elastohydrodynamic lubrication; Oil-air lubrication; Starvation; PHOSPHORIC-ACID; THICKNESS; MIST; EHL; SUPERLUBRICITY; STARVATION; TRANSITION; BEARINGS; CONTACTS; LAYER;
D O I：
10.1016/j.triboint.2015.06.010
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The film forming behavior has been investigated under oil-air lubrication, compared with that under oil-jet lubrication in present work. Images of microscopic oil reservoir and interference were obtained up to 30 m/s. A parameter eta describing the oil supply effects is 30 times higher and the film thickness reduces in starved regime much slower under oil - air lubrication compared with that under oil-jet lubrication. The contribution of micron-order oil droplets on film forming is discussed. More micron-order oil droplets can spread onto the disc while less of them are driven away by centrifugal effects. As a result, the oil supply efficiency of oil - air lubrication is improved. The high pressure compressed air can blow off the oil and intensify the film oscillation. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6 / 13
页数：8
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