This numerical study deals with the improvement of the thermohydrodynamic performance of a 100 mm plain journal bearing submitted to a constant misalignment torque under steady-state conditions. The performance of the misaligned journal bearing is improved by adding either a local or a global defect to the bearing geometry. The influence on bearing performance of the local defect, situated in the zone of minimum film thickness, is analyzed by using various widths and lengths of defect. A global defect, which is conical in shape and is located at one end of the bearing, is also studied under varying direction and magnitude of misalignment torque. Our main focus was on hydrodynamic pressure, temperature distributions at the film/bush interface, oil flow rate, power losses and film thickness. The defects significantly improved the performance of the bearing. The minimum film thickness increased by more than 60 percent and the temperature decreased, whilst the axial flow rate was barely affected. Thus, the defects can be an effective solution for misaligned bearings when they are submitted to extreme operating conditions.
Improvement of the THD Performance of a Misaligned Plain Journal Bearing
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for presentation at the ASME/STLE Tribology Conference, Cancun, Mexico October 27–30, 2002. Manuscript received by the Tribology Division February 20, 2002 revised manuscript received July 30, 2002. Associate Editor: L. San Andre´s.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Bouyer , J., and Fillon, M. (March 19, 2003). "Improvement of the THD Performance of a Misaligned Plain Journal Bearing ." ASME. J. Tribol. April 2003; 125(2): 334–342. https://doi.org/10.1115/1.1510883
Download citation file:
- Ris (Zotero)
- Reference Manager