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RESEARCH PAPERS

TEHD Analysis of Thrust Bearings With PTFE-Faced Pads

[+] Author and Article Information
S. B. Glavatskih

Division of Machine Elements, Sirius Laboratory, Luleå University of Technology, SE-971 87 Luleå, Sweden

Michel Fillon

Laboratory of Solid Mechanics, University of Poitiers, UMR CNRS 6610, SP2MI, 86962 Futuroscope Cedex, France

J. Tribol 128(1), 49-58 (Dec 14, 2005) (10 pages) doi:10.1115/1.1843833 History: Received April 21, 2004; Revised July 14, 2004; Online December 14, 2005
Copyright © 2006 by ASME
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References

Soifer,  A. M., Kodnir,  D. S., and Baiborodov,  Yu. I., 1965, “Elastic Sliding Bearing on a Base of Resilient Deformable Material Combined With Fluoroplastic,” Izv. VUZov, Mashinostroenie,7, pp. 67–69.
Baiborodov,  Yu. I. , 1977, “Operating Experience With Elastic Metal-Plastic Pads in a Thrust Bearing Unit N 9 of Volga Hydropower Station Named After V. I. Lenin,” Gidrotekh. Stroit., 10, pp. 28–31.
Glavatskih,  S. B., 2003, “Evaluating Thermal Performance of a PTFE-Faced Tilting Pad Thrust Bearing,” J. Tribol., 125, pp. 319–324.
Ettles,  C. M., Knox,  R. T., Ferguson,  J. H., and Horner,  D., 2003, “Test Results for PTFE-Faced Thrust Pads, With Direct Comparison Against Babbitt-Faced Pads and Correlation With Analysis,” J. Tribol., 125, pp. 814–823.
Fillon, M., Souchet, D., and Fre⁁ne, J., 1990, “Influence of Bearing Element Displacements on Thermohydrodynamic Characteristics of Tilting-Pad Journal Bearings,” Proceedings of the 1990 International Tribology Conference, Nagoya, JAST, pp. 635–640.
Glavatskih,  S. B., Fillon,  M., and Larsson,  R., 2002, “The Significance of Oil Thermal Properties on the Performance of a Tilting-Pad Thrust Bearing,” ASME J. Tribol., 124, pp. 377–385.
Rades,  M., 1972, “Dynamic Analysis of an Inertial Foundation Model,” Int. J. Solids Struct., 8, pp. 1353–1372.
Pascovici,  M. D., and Suciu,  C. V., 1992, “Analytical Investigation of a Narrow Compliant Journal Bearing,” Acta Tribologyca,1, pp. 89–93.
Lin,  C. R., and Rylander,  H. G., 1991, “Performance Characteristics of Compliant Journal Bearings,” ASME J. Tribol., 113, pp. 639–644.
Boncompain,  R., Fillon,  M., and Fre⁁ne,  J., 1986, “Analysis of Thermal Effects in Hydrodynamic Bearings,” ASME J. Tribol., 108, pp. 219–224.
Glavatskih,  S. B., 2002, “Laboratory Research Facility for Testing Hydrodynamic Thrust Bearings,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol., 216, pp. 105–116.
Glavatskih,  S. B., 2004, “A Method of Temperature Monitoring in Fluid Film Bearings,” Tribol. Int., 37, pp. 134–148.

Figures

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Schematic of bearing instrumentation
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Temperatures at the film–PTFE interface and in the pad steel backing, 4 mm from the interface
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Temperatures at the film–PTFE interface along the pad mean radius
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Film-layer-pad isotherms at the mean radius for the PTFE-faced (a) and babbitted (b) bearings. Rotational speed—3000 rpm, specific load—1.0 MPa.
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Temperatures at the film-layer interface over the pad face for the PTFE-faced (a) and babbitted (b) bearings. TEHD, 3000 rpm, 1.0 MPa.
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Maximum temperature at the film–PTFE interface and in the pad backing (4 mm from the interface) as a function of the PTFE layer thickness
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Bearing drain temperatures
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Comparison of the predicted and measured oil film thicknesses
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Predicted and measured oil film thicknesses along the pad mean radius
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The effect of the PTFE layer thickness on oil film thickness
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The effect of the PTFE layer thickness on oil film thickness along the pad center line
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Pad inclination predicted by the THD and TEHD models for the babitted and PTFE bearings
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The effect of the PTFE layer thickness on pad inclination
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THD and TEHD pressure profiles for the PTFE and babbitted bearings along mean radius
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The effect of the PTFE layer thickness on maximum oil film pressure
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Comparison of the predicted and measured pressure profiles. TEHD, 2000 rpm, 1.0 MPa.

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