Jørgen W. Lund: Theories Versus Tests, Part 2: Damped Critical Speeds of Rotors and Fluid Film Bearing Characteristics

[+] Author and Article Information
Jørgen Tonnesen

JT Consult, Birkerod, Denmark

J. Vib. Acoust 125(4), 489-494 (Oct 08, 2003) (6 pages) doi:10.1115/1.1610007 History: Received July 01, 2003; Online October 08, 2003

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Tonnesen,  J., 1976, “Experimental Parametric Study of a Squeeze Film Bearing,” ASME J. Lubr. Technol., 98(2), April, pp. 206–213.
Lund,  J. W., 1974, “Stability and Damped Critical Speed of a Flexible Rotor in Fluid film Bearings,” ASME J. Eng. Ind., 96(2), May, pp. 509–517.
Thomsen, K., K., 1975, “Theoretical and Experimental Investigation of the Stability of Hydrodynamic Radial Bearings,” PhD thesis, Technical University of Denmark, Lyngby, Denmark, Sept.
Christensen,  E., Tonnesen,  J., and Lund,  J. W., 1976, “Dynamic Film Pressure Measurements in Journal Bearings for use in Rotor Balancing,” ASME J. Eng. Ind. 98(1), Feb., pp. 206–213.
Azzoni, A., et al., 1976, “Experimental Studies on the Shaft Dynamics of Large Turbogenerator for an Improved Surveillance,” Paper C 185/76, at Conference on Vibrations in Rotating Machinery, University of Cambridge, Sponsored by IME, London, Sept.
Lund,  J. W., and Hansen,  P. K., 1984, “An Approximate Analysis of the Temperature Conditions in a Journal Bearing. Part I: Theory,” ASME J. Tribol., 106(2), April, pp. 228–236.
Tonnesen,  J., and Hansen,  P. K., 1981, “Some Experiments in the Steady-State Characteristics of a Cylindrical Fluid Film Bearing Considering Thermal Effects,” ASME J. Lubr. Technol., 103, pp. 107–114.
Tonnesen,  J., and Lund,  J. W., 1978, “Some Experiments on Instability of Rotors Supported in Fluid Film Bearings,” ASME J. Mech. Des., 100(1), Jan., pp. 147–155.
Mitsui, J., Hori, Y., and Tanaka, M., 1983, “Thermohydrodynamic Analysis of Cooling Effect of Supply Oil in Circular Journal Bearing,” ASME J. Lubr. Technol., 105 (3), July.


Grahic Jump Location
Measured and calculated journal center eccentricity ratio as a function of load
Grahic Jump Location
Measured and calculated journal surface temperature as a function of load
Grahic Jump Location
Measured and calculated maximum bearing wall temperature in the bottom pad as a function of load
Grahic Jump Location
Circumferential profile for the bearing wall temperature and for the calculated mean film temperature
Grahic Jump Location
Measured and calculated circumferential pressure profile in bearing center plane
Grahic Jump Location
Measured and calculated journal center equilibrium locus



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