This paper presents a systematic development of the theory of powder lubrication with the appropriate formalism based on the fundamentals of fluid mechanics. The theory is capable of predicting flow velocity, fluctuation (pseudo-temperature), powder volume fraction, and slip velocity at the boundaries. An extensive set of parametric simulations covering granular size, surface roughness, volumetric flow, load and speed are performed to gain insight into the performance of a powder lubricated thrust bearing. The results of the simulations are compared to published experimental results. Good agreement between the theoretical and experimental results attests to the capability of the model and its potential for design of powder lubricated bearings.
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January 2003
Technical Papers
Flow Characterization and Performance of a Powder Lubricated Slider Bearing
Manjunath Pappur,
Manjunath Pappur
Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70808
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M. M. Khonsari
M. M. Khonsari
Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70808
Search for other works by this author on:
Manjunath Pappur
Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70808
M. M. Khonsari
Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70808
Contributed by the Tribology Division for publication in the ASME JOURNAL OF TRIBOLOGY. Manuscript received by the Tribology Division September 10, 2001; revised manuscript received December 27, 2001. Associate Editor: J. A. Tichy.
J. Tribol. Jan 2003, 125(1): 135-144 (10 pages)
Published Online: December 31, 2002
Article history
Received:
September 10, 2001
Revised:
December 27, 2001
Online:
December 31, 2002
Citation
Pappur , M., and Khonsari, M. M. (December 31, 2002). "Flow Characterization and Performance of a Powder Lubricated Slider Bearing ." ASME. J. Tribol. January 2003; 125(1): 135–144. https://doi.org/10.1115/1.1467634
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