Localized boundary effect on elastohydrodynamic lubricated film shape
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 471-479 |
| Journal / Publication | Tribology Letters |
| Volume | 56 |
| Issue number | 3 |
| Publication status | Published - 20 Nov 2014 |
Link(s)
Abstract
The study aimed to determine the formation of an adsorption film at elastohydrodynamic lubricated (EHL) contacts and its effects on EHL film shape and friction. Experiments were conducted on an optical EHL test rig with surfaces of different surface energies. A new type of "abnormal" EHL film shape characterized with three dimples in the inlet of the contact was obtained in pure ball sliding experiments with long-chain polybutene. The adsorption layer was inferred to be the main cause for the "tri-dimple" phenomenon. The "tri-dimple" formation was examined. Under a fixed speed, a single inlet dimple gradually broke into three dimples with increasing number of ball rotation, and it happened with slight increase in friction force. Three zones, namely a central and two lateral zones, of the contact were classified and characterized with different levels of influence on the adsorption layer.
Research Area(s)
- Adsorption layer, Boundary slip, Coefficient of friction, Elastohydrodynamic lubrication, Viscoelastic
Citation Format(s)
Localized boundary effect on elastohydrodynamic lubricated film shape. / Fu, Z.; Wong, P. L.; Guo, F.
In: Tribology Letters, Vol. 56, No. 3, 20.11.2014, p. 471-479.
In: Tribology Letters, Vol. 56, No. 3, 20.11.2014, p. 471-479.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
