KSTLE International Journal

Korean Tribology Society (한국트라이볼로지학회)
권호 표지

The Effect of Oil Supply Conditions on the Dynamic Performance of a Hydrodynamic Journal Bearing

  • Son, Sang-Ik (School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Kyung-Woong (School of Mechanical, Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology)
  • Received : 2009.09.01
  • Accepted : 2009.10.31
  • Published : 2009.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the effect of oil supply conditions on the dynamic performance of a hydrodynamic journal bearing is analyzed numerically. Axial length, circumferential length and location of oil grooves are considered as oil supply conditions. The perturbation equations of the perturbed film contents are obtained by applying Elrod's universal equation implementing JFO film rupture / reformation boundary conditions to Lund's infinitesimal perturbation method. The dynamic coefficients of a hydrodynamic journal bearing are calculated by solving the perturbation equations, and the linear stability analysis is carried out by using those for a variety of oil supply conditions.

Keywords

References

  1. Ken, I., Mori, H., An Analysis of Lubricating Film Journal Bearing-Effect of oil Supply Condition on the Static Performance, JSLE, No. 4, 1984
  2. So, H., Shieh, J. A., The Cooling Effects of Supply Oil on Journal Bearings for Varying Inlet Conditions, Tribology International, Vol. 20, pp.79-89, 1987 https://doi.org/10.1016/0301-679X(87)90093-4
  3. Zhang, Y., Dynamic Properties of flexible Journal Bearings of Infinite Width Considering Oil Supply Condition and Pressure, Wear, Vol. 130, pp. 53-68, 1989 https://doi.org/10.1016/0043-1648(89)90221-4
  4. Jeong, K. M., Kim, K. W., The Effects of Oil Supply Conditions on the Static Characteristics of Plain Journal Bearings, J. of the KSTLE, Vol. 6, No. 2, pp. 76-87, 1990
  5. Vijayaraghavan, D., Keith JR., T. G., Effect of Type and Location of Oil Groove on the Performance of Journal Bearings, Tribology Transactions, Vol. 35, pp. 98-106, 1992 https://doi.org/10.1080/10402009208982095
  6. Costa, L., Miranda, A. S., Fillon, M., Claro, J. C. P., An Analysis of the Influence of Oil Supply Conditions on the Thermohydrodynamic Performance of a Single-Groove Journal Bearing, Proc Instit Mech Eng Part J: J Eng Tribology, Vol. 217, pp. 133-144, 2003 https://doi.org/10.1243/13506500360603561
  7. Wang, J. K., Khonsari, M. M., Effects of Oil Inlet Pressure and Inlet Position of Axially Grooved Infinitely Long Journal Bearings. Part I: Analytical Solutions and Static Performance, Tribology International, Vol. 41, pp. 119-131, 2008 https://doi.org/10.1016/j.triboint.2007.05.005
  8. Wang, J. K., Khonsari, M. M., Effects of Oil Inlet Pressure and Inlet Position of Axially Grooved Infinitely Long Journal Bearings. Part II: Nonlinear Instability Analysis, Tribology International, Vol. 41, pp. 132-140, 2008 https://doi.org/10.1016/j.triboint.2007.05.006
  9. Floberg, L., Jakobsson, B., The Finite Journal Bearing Considering Vaporization, Transactions Chalmers Univ. Technology, Goteborg, 1957
  10. Olsson, K., Cavitation in Dynamically Loaded Bearings, Transactions Chalmers Univ. Technology, Goteborg, 1965
  11. Elrod, H. G., Adams, M. L., A Computer Program for Cavitation and Starvation Problems, Cavitation and Related Phenomena in Lubrication, Proceedings of the 1^{st} Leeds-Lyon Symposium on Tribology, Leeds Univ., pp. 37-41, 1974
  12. Lund, J. W., Thomsen, K. K., Calculation Method and Data for the Dynamic Coefficients of Oil-Lubricated Journal Bearings, Proc. of the ASME, Minneapolis, pp. 1, 1978
  13. Elrod, H. G., A Cavitation Algorithm, ASME J. of Lubrication Technology, Vol. 103, pp. 350-354, 1981 https://doi.org/10.1115/1.3251669