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TECHNICAL PAPERS

An Experimental Analysis of Misalignment Effects on Hydrodynamic Plain Journal Bearing Performances

[+] Author and Article Information
J. Bouyer, M. Fillon

Université de Poitiers, Laboratoire de Mécanique des Solides, U.M.R C.N.R.S 6610, SP2MI, Bd Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France

J. Tribol 124(2), 313-319 (Jul 03, 2001) (7 pages) doi:10.1115/1.1402180 History: Received February 06, 2001; Revised July 03, 2001
Copyright © 2002 by ASME
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References

Fisher,  A., 1922, “Oil Flow in Ring Lubricated Bearings,” Machinery, London, 21, pp. 311.
McKee S. A., and McKee T. R., 1932, “Pressure Distribution in Oil Films of Journal Bearings,” ASME, RP-54-8, 5 , pp. 149–165.
Piggott,  R. J. S., 1942, “Bearings and Lubrication. Bearing Troubles Traceable to Design can be Avoided by Engineering Study,” Mech. Eng. (Am. Soc. Mech. Eng.), 64, pp. 259–269.
Buske, A., and Rolli, W., 1949, “Measurements of Oil-Film Pressure in Bearings Under Constant and Variable Loads,” Technical Note 1200, NACA, pp. 43.
Dubois, G. B., Mabie, H. H., and Ocvirk, F. W., 1951, “Experimental Investigation of Oil Film Pressure Distribution for Misaligned Plain Bearings,” Technical Note 2507, NACA.
Dubois,  G. B., Ocvirk,  F. W., and Wehe,  R. L., 1957, “Properties of Misaligned Journal Bearings,” ASME J. Basic Eng., 79, pp. 1205–1212.
Asanabe, S., Akahoshi, M., and Asai, R., 1972, “Theoretical and Experimental Investigation on Misaligned Journal Bearing Performance,” Inst. Mech. Engrs Tribology Convention, pp. 1–8.
Nicolas, D., and Fre⁁ne, J., 1973, “Tilting Torque Permissible in Plain Bearings. Theory, Experimental Results and Application to Machine Design,” Proceedings, First European Tribology Congress, Mechanical Engineering Publications Limited, London, pp. 353–360.
Ikeuchi, K., Katsuse, S., Hamamura, K., and Mori, H., 1985, “Effects of Misalignment in Full Journal Bearing with Circumferential Oil Groove,” Proceedings, JSLE International Tribology Conference, Tokyo, Elsevier Science, pp. 67–72.
Choy,  F. K., Braun,  M. J., and Hu,  Y., 1992, “Analytical and Numerical Study of a Misaligned Cavitating Hydrodynamic Cryogenic Journal Bearing,” Tribol. Int., 25, pp. 3–16.
Choy,  F. K., Braun,  M. J., and Hu,  Y., 1993, “Nonlinear Study of a Misaligned Hydrodynamic Journal Bearing,” STLE Tribol. Trans., 36, pp. 421–431.
Tieu,  A. K., and Qiu,  Z. L., 1996, “Experimental Study of Freely Alignable Journal Bearings: Part 1—Static Characteristics,” ASME J. Tribol., 118, pp. 498–502.
Prabhu,  B. S., 1997, “An Experimental Investigation on the Misalignment Effects in Journal Bearings,” STLE Tribol. Trans., 40, pp. 235–242.
Arumugam,  P., Swarnamani,  S., and Prabhu,  B. S., 1997, “Effects of Journal Misalignment on the Performance Characteristics of Three-lobe Bearings,” Wear, 206, pp. 122–129.
Huber, M., Strzelecki, S., and Steinhilper, W., 1998, “Theoretical and Experimental Determination of the Performances of Misaligned and Statically Loaded Cylindrical Journal Bearings,” Austrib Congress, pp. 243–248.
Monmousseau,  P., and Fillon,  M., 1999, “Analysis of Static and Dynamic Misaligned Tilting-Pad Journal Bearings,” Proc. Inst. Mech. Eng., Part J: J. Eng. Tribol., 213, pp. 253–261.
Pierre, I., Bouyer, J., and Fillon, M., 2001, “Thermohydrodynamic Study of Misaligned Plain Journal Bearings—Comparison Between Experimental Data and Theoretical Results,” 2nd World Tribology Congress, Paper No. 620.
Banwait, S. S., Chandrawat, H. N., and Adithan, M., 1998, “Thermohydrodynamic Analysis of Misaligned Plain Journal Bearing,” 1st Asia International Conference on Tribology, Beijing, pp. 35–40.
Ferron,  J., Fre⁁ne,  J., and Boncompain,  R., 1983, “A Study of the Thermohydrodynamic Performance of a Plain Journal Bearing.-Comparison Between Theory and Experiments,” ASME J. Lubr. Technol., 105, pp. 422–428.
Fillon,  M., Bligoud,  J. C., and Fre⁁ne,  J., 1992, “Experimental Study of Tilting-pad Journal Bearings: Comparison with Theoretical Thermoelastohydrodynamic Results,” ASME J. Tribol., 114, pp. 579–588.
Monmousseau,  P., Fillon,  M., and Fre⁁ne,  J., 1997, “Transient Thermoelastohydrodynamic Study of Tilting-Pad Journal Bearings-Comparison Between Experimental Data and Theoretical Results,” ASME J. Tribol., 119, pp. 401–407.
Kucinschi,  B., and Fillon,  M., 1999, “An Experimental Study of Transient Thermal Effects in a Plain Journal Bearing,” ASME J. Tribol., 121, pp. 327–332.
Costa,  L., Fillon,  M., Miranda,  A. S., and Claro,  J. C. P., 2000, “An Experimental Investigation of the Effect of Groove Location and Supply Pressure on the THD Performance of a Steadily Loaded Journal Bearing,” ASME J. Tribol., 122, pp. 227–232.
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Figures

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Schematic representation of the experimental rig
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Location of proximity probes
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Location of pressure holes and thermocouples
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Schematic representation of the misalignment apparatus
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View of the experimental rig
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Pressure distribution in the mid-plane of the bearing
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Maximum pressure in the mid-plane of the bearing
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(a) Temperature distribution at film/bush interface in the mid-plane of the bearing for a static load of 3000N; and (b) temperature distribution at film/bush interface in the mid-plane of the bearing for a static load of 9000N.
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Maximum film/bush interface temperature in the mid-plane of the bearing
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(a) Axial distribution of film/bush interface temperature at angular coordinate 180 deg; and (b) axial distribution of film/bush interface temperature at angular coordinate 260 deg
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Oil flow rate evolution for different rotational speeds
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(a) Projection of the shaft center line for different misalignment torques, for a static load of 3000N; and (b) projection of the shaft center line for different misalignment torques, for a static load of 9000 N.
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(a) Evolution of the minimum film thickness in the front section of the bearing for different rotational speeds; and (b) evolution of the minimum film thickness in the back section of the bearing for different rotational speeds.

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