TY - GEN
T1 - Modeling the pressure-density relationship in thin films at asperity contacts in mixed lubrication
AU - Martini, A.
AU - Cantrell, R.
AU - Wang, Q.
AU - Snurr, R. Q.
PY - 2005
Y1 - 2005
N2 - In mixed lubricated contact, the asperity contact regions may be separated by a thin layer of lubricant film. Simulations of mixed lubrication often use empirical formulae to describe the change of density with pressure in the lubricated areas. However, these models may not be applicable to molecularly thin films at asperity contact regions. We present a molecular simulation approach for density characterization of the fluid at asperity contact regions in mixed lubrication. The resultant density-pressure relationship is compared to the traditional Dowson-Higginson model. It is found that the two models predict comparable densities at low pressures but diverge at higher pressures.
AB - In mixed lubricated contact, the asperity contact regions may be separated by a thin layer of lubricant film. Simulations of mixed lubrication often use empirical formulae to describe the change of density with pressure in the lubricated areas. However, these models may not be applicable to molecularly thin films at asperity contact regions. We present a molecular simulation approach for density characterization of the fluid at asperity contact regions in mixed lubrication. The resultant density-pressure relationship is compared to the traditional Dowson-Higginson model. It is found that the two models predict comparable densities at low pressures but diverge at higher pressures.
UR - http://www.scopus.com/inward/record.url?scp=32844474964&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=32844474964&partnerID=8YFLogxK
U2 - 10.1115/wtc2005-64347
DO - 10.1115/wtc2005-64347
M3 - Conference contribution
AN - SCOPUS:32844474964
SN - 0791842010
SN - 9780791842010
T3 - Proceedings of the World Tribology Congress III - 2005
SP - 933
EP - 934
BT - Proceedings of the World Tribology Congress III - 2005
PB - American Society of Mechanical Engineers
T2 - 2005 World Tribology Congress III
Y2 - 12 September 2005 through 16 September 2005
ER -