The film forming behavior at high speeds under oil-air lubrication
The film forming behavior at high speeds under oil-air lubrication
复制标题
油气润滑下高速成膜行为
DOI：
10.1016/j.triboint.2015.06.010
复制
发表时间：
2015
影响因子：
6.2
通讯作者：
Luo Jianbin
中科院分区：
文献类型：
--
作者：
Liang He;Guo Dan;Ma Liran;Luo Jianbin
研究了油气润滑条件下的油膜形成行为，并与喷油润滑条件下的油膜形成行为进行了比较。以高达30 m/s的速度获得微观油藏和干扰的图像。描述供油效应的参数η是喷油润滑的30倍，油膜厚度在缺油区的减小速度比喷油润滑慢得多。讨论了微米级油滴对成膜的贡献。更多的微米级油滴可以扩散到圆盘上，而更少的油滴被离心作用赶走。其结果是，油气润滑的供油效率提高。高压压缩空气可以吹走油，并加剧油膜振荡。
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 parameterηdescribing 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.