An experimental study of the influence of oil supply temperature and supply pressure on the performance of a plain journal bearing with two axial grooves located at to the load line was carried out. The hydrodynamic pressure at the mid-plane of the bearing, temperature profiles at the oil-bush and oil-shaft interfaces, bush torque, oil flow rate, and the position of the shaft were measured for variable operating conditions. Shaft rotational speed ranged from to and two different values of applied load were tested (2 and ). The supply temperature ranged from to , whereas the oil supply pressure range was to . Bearing performance is strongly dependent on the supply conditions. It was found that the existence of the downstream groove significantly affects the temperature profile at the oil-bush interface except for the low load, low feeding pressure cases, where the cooling effect of the upstream groove is significant. Feeding temperature has a strong effect on the minimum film thickness. The increase in maximum temperature is significantly lower than the corresponding increase in supply temperature. Increases in supply pressure lead to a significant rise in oil flow rate but have little effect on the maximum temperature and power-loss, except in the case of the lightly loaded bearing. Shaft temperature was found to be close to the bearing maximum temperature for low applied loads, being significantly smaller than this value for high loads. The mean shaft temperature is only significantly higher than the outlet temperature at high shaft speeds.
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January 2007
Technical Papers
Experimental Investigation of the Influence of Supply Temperature and Supply Pressure on the Performance of a Two-Axial Groove Hydrodynamic Journal Bearing
F. P. Brito,
F. P. Brito
Mechanical Engineering Department,
University of Minho
, 4810 Guimarães, Portugal
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A. S. Miranda,
A. S. Miranda
Mechanical Engineering Department,
University of Minho
, 4810 Guimarães, Portugal
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J. Bouyer,
J. Bouyer
Laboratoire de Mécanique des Solides,
University of Poitiers
, U.M.R. C.N.R.S. 6610, SP2MI, BP 30179, 86962 Futuroscope cedex, France
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M. Fillon
M. Fillon
Laboratoire de Mécanique des Solides,
University of Poitiers
, U.M.R. C.N.R.S. 6610, SP2MI, BP 30179, 86962 Futuroscope cedex, France
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F. P. Brito
Mechanical Engineering Department,
University of Minho
, 4810 Guimarães, Portugal
A. S. Miranda
Mechanical Engineering Department,
University of Minho
, 4810 Guimarães, Portugal
J. Bouyer
Laboratoire de Mécanique des Solides,
University of Poitiers
, U.M.R. C.N.R.S. 6610, SP2MI, BP 30179, 86962 Futuroscope cedex, France
M. Fillon
Laboratoire de Mécanique des Solides,
University of Poitiers
, U.M.R. C.N.R.S. 6610, SP2MI, BP 30179, 86962 Futuroscope cedex, FranceJ. Tribol. Jan 2007, 129(1): 98-105 (8 pages)
Published Online: June 23, 2006
Article history
Received:
March 15, 2006
Revised:
June 23, 2006
Citation
Brito, F. P., Miranda, A. S., Bouyer, J., and Fillon, M. (June 23, 2006). "Experimental Investigation of the Influence of Supply Temperature and Supply Pressure on the Performance of a Two-Axial Groove Hydrodynamic Journal Bearing." ASME. J. Tribol. January 2007; 129(1): 98–105. https://doi.org/10.1115/1.2401206
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