Advanced computational methods for the simulation of lubrified contacts
| Full text | |
| Author(s): |
Checo, Hugo M.
[1]
;
Ausas, Roberto F.
[1]
;
Jai, Mohammed
[2]
;
Cadalen, Jean-Paul
[3]
;
Choukroun, Franck
[3]
;
Buscaglia, Gustavo C.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Inst Ciencias Matemat & Comp, BR-13560970 Sao Carlos, SP - Brazil
[2] INSA Lyon Pole Math, ICJ, F-69621 Villeurbanne - France
[3] RENAULT, F-92508 Rueil Malmaison - France
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | TRIBOLOGY INTERNATIONAL; v. 72, p. 131-142, APR 2014. |
| Web of Science Citations: | 45 |
| Abstract | |
Numerical simulations of the ring/liner contact in which the liner exhibits a periodic texture (pockets) are reported. The mass-conservative Elrod-Adams model is used to treat cavitation, and the dynamics of the ring is considered with a linear mass that corresponds to actual engine compression rings. The results, computed at a Siribeck number of 10(-3) and thus in the hydrodynamic lubrication regime, show that the ring profile determines whether pocketing is beneficial or not. For strongly non-conformal contacts pocketing is detrimental, but for quasi-conformal contacts friction reductions of up to 73% are predicted. The largest reduction in friction was obtained for textures consisting of close-packed arrays of circular pockets of diameter comparable to the size of the contact. (C) 2013 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 12/14481-8 - Numerical approximation of microfluidic interfaces with mechano-bio-chemical coupling |
| Grantee: | Gustavo Carlos Buscaglia |
| Support type: | Regular Research Grants |
| FAPESP's process: | 11/24147-5 - Advanced computational methods for the simulation of lubrified contacts |
| Grantee: | Hugo Marcial Checo Silva |
| Support type: | Scholarships in Brazil - Doctorate |