| Texto completo | |
| Autor(es): |
Checo, Hugo M.
[1]
;
Ausas, Roberto F.
[1]
;
Jai, Mohammed
[2]
;
Cadalen, Jean-Paul
[3]
;
Choukroun, Franck
[3]
;
Buscaglia, Gustavo C.
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [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
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | TRIBOLOGY INTERNATIONAL; v. 72, p. 131-142, APR 2014. |
| Citações Web of Science: | 40 |
| Resumo | |
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) | |
| Processo FAPESP: | 12/14481-8 - Aproximação numérica de interfaces microfluídicas com acoplamento mecânico-bioquímico |
| Beneficiário: | Gustavo Carlos Buscaglia |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 11/24147-5 - Métodos computacionais avançados para simulação de contatos lubrificados |
| Beneficiário: | Hugo Marcial Checo Silva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |