Abstract
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 η 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.
Original language | English |
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Pages (from-to) | 6-13 |
Number of pages | 8 |
Journal | Tribology International |
Volume | 91 |
DOIs | |
Publication status | Published - 11 Jul 2015 |
Externally published | Yes |
Keywords
- Elastohydrodynamic lubrication
- High speeds
- Oil-air lubrication
- Starvation