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TECHNICAL PAPERS

Influence of Thermal and Elastic Deformations on Connecting-Rod Big End Bearing Lubrication Under Dynamic Loading

[+] Author and Article Information
S. Piffeteau, D. Souchet, D. Bonneau

Laboratoire de Mécanique des Solides, Université de Poitiers, UMR CNRS 6610, 4, Avenue de Varsovie, 16021 Angoule̊me Cedex, France

J. Tribol 122(1), 181-191 (May 11, 1999) (11 pages) doi:10.1115/1.555341 History: Received January 19, 1999; Revised May 11, 1999
Copyright © 2000 by ASME
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References

Rohde,  S. M., and Oh,  K. P., 1975, “A Thermoelastohydrodynamic Analysis of a Finite Slider Bearing,” ASME J. Lubr. Technol., 97, pp. 450–460.
Fillon, M., Souchet, D., and Fre⁁ne, J., 1990, “Influence of Bearing Element Displacements on Thermohydrodynamic Characteristics of Tilting-Pad Journal Bearings,” Proc. Jpn. Int. Tribol. Conf., ITC Nagoya ’90, pp. 635–640.
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.
Bouchoule,  C., Fillon,  M., Nicolas,  D., and Barresi,  F., 1996, “Experimental Study of Thermal Effects in Tilting-Pad Journal Bearings at High Operating Speeds,” ASME J. Tribol., 118, pp. 532–538.
Kim,  J., Palazzolo,  A. B., and Gadangi,  R. K., 1994, “TEHD Analysis for Tilting-Pad Journal Bearings Using Upwind Finite Element Method,” Tribol. Trans., 37, pp. 771–783.
Khonsari,  M. M., and Wang,  S. H., 1991, “On The Fluid-Solid Interaction in Reference to Thermoelastohydrodynamic Analysis of Journal Bearings,” ASME J. Tribol., 113, pp. 398–404.
Fantino,  B., and Fre⁁ne,  J., 1985, “Comparison of Dynamic Behavior of Elastic Connecting-Rod Bearing in Both Petrol and Diesel Engines,” ASME J. Tribol., 107, pp. 87–91.
Oh,  K. P., and Goenka,  P. K., 1985, “The Elastohydrodynamic Solution of Journal Bearings Under Dynamic Loading,” ASME J. Tribol., 107, pp. 389–395.
McIvor,  J. D. C., and Fenner,  D. N., 1989, “Finite Element Analysis of Dynamically Loaded Flexible Journal Bearings: A Fast Newton-Raphson Method,” ASME J. Tribol., 111, pp. 597–604.
Bonneau,  D., Guines,  D., Fre⁁ne,  J., and Toplosky,  J., 1995, “EHD Analysis, Including Structural Inertia Effects and a Mass-Conserving Cavitation Model,” ASME J. Tribol., 117, pp. 540–547.
Ezzat,  H. A., and Rohde,  S. M., 1974, “Thermal Transients in Finite Slider Bearings,” ASME J. Lubr. Technol., 96, pp. 315–321.
Khonsari,  M. M., and Wang,  S. H., 1992, “Notes on Transient THD Effects in a Lubricating Film,” Tribol. Trans., 35, pp. 177–183.
Paranjpe,  R. S., 1996, “A Study of Dynamically Loaded Engine Bearings Using Transient Thermohydrodynamic Analysis,” Tribol. Trans., 39, pp. 636–644.
Gadangi,  R. K., and Palazzolo,  A. B., 1995, “Transient Analysis of Tilt Pad Journal Bearings Including Effects of Pad Flexibility and Fluid Film Temperature,” ASME J. Tribol., 117, pp. 302–306.
Yang,  P., and Rodkiewicz,  C. M., 1996, “Time-Dependent TEHL Solution to Centrally Supported Tilting Pad Bearings Subjected to Harmonic Vibration,” Tribol. Int., 29, pp. 433–443.
Monmousseau,  P., Fillon,  M., and Fre⁁ne,  J., 1997, “Transient Thermoelastohydrodynamic Study of Tilting-Pad Journal Bearings Under Dynamic Loading,” ASME J. Tribol., 119, pp. 401–407.
Goodwin, G., and Holmes, R., 1982, “On Bearing Deformation and Temperature Distribution in Dynamically-Loaded Engine Bearings,” Proc. Inst. Mech. Eng., pp. 9–12.
Conway-Jones, J. M., and Gojon, R., 1990, “Heat Flow in Crankshaft Bearings,” Proceedings of the 17th Leeds-Lyon Symposium on Tribology, pp. 33–42.
Hashizume, K., Hagiwara, Y., and Kumada, Y., 1990, “A Study on the Oil Flow and the Temperature of Journal Bearings,” Proc. Jpn. Int. Tribol. Conf., ITC Nagoya ’90, pp. 295–300.
Suzuki, S., Ozasa, T., Yamamoto, M., Nozawa, Y., and Noda, T., 1995, “Temperature Distribution and Lubrication Characteristics of Connecting Rod Big End Bearings,” S.A.E. Technical Paper Series n° 952550, pp. 149–158.
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Figures

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Coordinate system of the shaft and connecting-rod
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Coordinate system of the film
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Comparison between maximum pressures for 2D-EHD and 3D-EHD model and a connecting-rod bearing running at 2000 rev/min
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Comparison between minimum film thickness for 2D-EHD and 3D-EHD model and a connecting-rod bearing running at 2000 rev/min
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(a) Solid meshes (b) Film mesh
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Load diagram for a connecting-rod bearing running at 6500 rev/min
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Maximum temperature evolution in each component of the bearing for thirty cycles of combustion
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Minimum film thickness evolution versus crank angle for three different thermal conditions
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Maximum pressure evolution versus crank angle for three different thermal conditions
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Orbit diagram of the journal center for three different thermal conditions
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Maximum radial thermoelastic displacements versus crank angle for an external connecting-rod temperature submitted to an adiabatic condition
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Radial thermoelastic displacements versus angular position at 0 degree crank angle for an external connecting-rod temperature submitted to an adiabatic condition
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Film thickness versus angular coordinate at 0 degree crank angle for three cases
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Maximum temperature evolution versus crank angle in the shaft, connecting-rod and film for an external boundary connecting-rod temperature fixed at 80°C
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Maximum temperature evolution versus crank angle in the shaft, connecting-rod and film for an adiabatic condition imposed to the external connecting-rod boundary
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Temperature contours in the center plane of the shaft at 0 degree crank angle for an external boundary connecting-rod temperature fixed at 80°C
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Temperature contours in the center plane of the film at every 80 degrees crank angle for an external boundary connecting-rod temperature fixed at 80°C
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Temperature contours in the center plane of the connecting-rod at 0 degree crank angle for an external boundary connecting-rod temperature fixed at 80°C
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Temperature contours in the center plane of the connecting-rod at 0 degree crank angle for an adiabatic condition imposed to the external connecting-rod boundary

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