Effects of Distance Between Pads on the Inlet Pressure Build-Up on Pad Bearings-Reference-Cited by-同舟云学术

Effects of Distance Between Pads on the Inlet Pressure Build-Up on Pad Bearings

Published:2002-05-31 Issue:3 Volume:124 Page:506-514
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Kim Jong-Soo¹,Kim Kyung-Woong²

Affiliation:

1. KMC, Inc., 20 Technology Way, West Greenwich, RI 02817

2. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejon, Korea

Abstract

Full Navier-Stokes equations are solved numerically for a cavity region between two consecutive pads and a parallel lubricating film. Numerical solutions are obtained for a wide range of Reynolds number and various values of a distance between pads. Numerical results show that the inlet pressure build-up is significantly affected by Reynolds number and the distance between two adjacent pads. A new formula is derived of loss coefficient with Reynolds number and a distance factor, for using it in an extended Bernoulli equation, on the basis of numerical results. Experiments are conducted to investigate the validity of the formula of loss coefficient proposed by authors.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/124/3/506/5819746/506_1.pdf

Reference15 articles.

1. Hashimoto, H., Wada, S., and Yoshida, T., 1989, “Pressure Boundary Conditions of High Speed Thrust Bearings,” JSME Int. J., Ser. III, 32, pp. 269–280.

2. Hashimoto, H. , 1990, “Performance Characteristics Analysis of Sector-Shaped Pad Thrust Bearings In Turbulent Inertia Flow Regime Under Three Types of Lubrication Conditions,” ASME J. Tribol., 112, pp. 477–485.

3. Kim, J. S., and Kim, K. W., 1992, “Inlet Pressure Effects on the Static and Dynamic Characteristics of Tilting-Pad Journal Bearings,” JSME Int. J., Ser. III, 35, No. 1, pp. 121–127.

4. Mori, A., and Mori, H., 1986, “Inlet Boundary Condition for Submerged Multi-Pad Bearing Relative to Fluid Inertia Forces,” The 13th Leeds-Lyon Symposium on Tribology.

5. King, K. F., and Taylor, C. M., 1975, “An Experimental Investigation of a Single Pad Thrust Bearing Capable of Operating in the Turbulent Lubricant Regime,” The 2nd Leeds-Lyon Symposium on Tribology.

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