TY - JOUR
T1 - The influence of sea water in oil emulsion on bearing performance
AU - Liu, H.
AU - Xu, H.
AU - Zhang, Y.
AU - Ji, H.
AU - Ge, Y.
AU - Ellison, P.
AU - Jin, Z.
PY - 2009/5/1
Y1 - 2009/5/1
N2 - The lubricant in the bearings of ships can be easily polluted by sea water. Too much sea water may deteriorate the bearing performance and result in catastrophic failure; therefore, the lubricant should be changed regularly to prevent this. It is important to investigate the effect of adding sea water to mineral oil on the tribological performance of these bearings. In the present study, different amounts of sea water of 1, 2, and 3 per cent (by mass) were mixed with a typical mineral oil with a viscosity of 46 mm2/s at 40 °C and tested in 12 identical journal bearings under different operation conditions of rotational speed and load. For each case, the temperature within the oil film, the loci of the shaft centre, the power consumption, and the viscosity of the emulsion were measured. In parallel to these measurements, a CFD simulation was performed for the test bearings to estimate the friction force and load capacity. The experimental measurements and the computational predictions were compared. A maximum amount of sea water that can be tole-rated in the mineral oil was established for the normal working conditions of the journal bearing.
AB - The lubricant in the bearings of ships can be easily polluted by sea water. Too much sea water may deteriorate the bearing performance and result in catastrophic failure; therefore, the lubricant should be changed regularly to prevent this. It is important to investigate the effect of adding sea water to mineral oil on the tribological performance of these bearings. In the present study, different amounts of sea water of 1, 2, and 3 per cent (by mass) were mixed with a typical mineral oil with a viscosity of 46 mm2/s at 40 °C and tested in 12 identical journal bearings under different operation conditions of rotational speed and load. For each case, the temperature within the oil film, the loci of the shaft centre, the power consumption, and the viscosity of the emulsion were measured. In parallel to these measurements, a CFD simulation was performed for the test bearings to estimate the friction force and load capacity. The experimental measurements and the computational predictions were compared. A maximum amount of sea water that can be tole-rated in the mineral oil was established for the normal working conditions of the journal bearing.
KW - CFD computational simulation
KW - Experimental
KW - Journal bearing
KW - Sea water in oil emulsion
KW - Tribology
UR - https://www.scopus.com/pages/publications/70349658788
U2 - 10.1243/13506501JET521
DO - 10.1243/13506501JET521
M3 - 文章
AN - SCOPUS:70349658788
SN - 1350-6501
VL - 223
SP - 457
EP - 468
JO - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
JF - Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
IS - 3
ER -