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Titolo:
Numerical simulation of piston ring in the mixed lubrication
Autore:
Wang, WH; Hu, YH; Wang, H; Liu, YH;
Indirizzi:
Tsing Hua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China Tsing Hua Univ Beijing Peoples R China 100084 ng 100084, Peoples R China
Titolo Testata:
SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
, volume: 44, anno: 2001, supplemento:, S
pagine: 34 - 39
SICI:
1001-6511(200108)44:<34:NSOPRI>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Keywords:
mixed lubrication; elastohydrodynamic lubrication; piston ring; surface roughness;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, WH Tsing Hua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China Tsing Hua Univ Beijing Peoples R China 100084 , Peoples R China
Citazione:
W.H. Wang et al., "Numerical simulation of piston ring in the mixed lubrication", SCI CHINA A, 44, 2001, pp. 34-39

Abstract

Piston and piston ring lubrication is a factor that strongly affects the performance of the reciprocating internal combustion engine. When the oil film thickness becomes smaller than a certain value, depending upon the roughness of the surfaces in contact, mixed lubrication has to be considered. This paper analyzes the lubrication of piston ring and predicts pressure distribution, lubricant film thickness and surface deformation. The work is based on a unified numerical approach assuming that the pressure distribution obeys Reynolds equation in hydrodynamic lubrication regions while in asperities contact regions, the contact pressure can be obtained through the so-called reduced Reynolds equation. The computation experience shows the unified equation system is stable and can deal with severe operating conditions.

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Documento generato il 03/04/20 alle ore 04:05:41