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TECHNICAL PAPERS

Usage of the Lund Rotordynamic Programs in the Analysis of Centrifugal Compressors

[+] Author and Article Information
Edmund A. Memmott

Dresser-Rand Company, Paul Clark Drive, Olean, NY 14670e-mail: Edmund_A_Memmott@dresser-rand.com

J. Vib. Acoust 125(4), 500-506 (Oct 08, 2003) (7 pages) doi:10.1115/1.1606712 History: Received June 01, 2003; Online October 08, 2003
Copyright © 2003 by ASME
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References

Lund,  J. W., 1964, “Spring and Damping Coefficients for the Tilting-Pad Journal Bearing,” ASLE Trans., 7, pp. 342–352.
Lund, J. W., 1965, “Rotor-Bearing Dynamics Design Technology, Part V: Computer Program Manual for Rotor Response and Stability,” Technical Report AFAPL-TR-65-45, Part V, Air Force Aero Propulsion Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, May.
Lund, J. W., and Orcutt, F. K., 1967, “Calculations and Experiments on the Unbalance Response of a Flexible Rotor,” ASME J. Eng. Ind., Nov., pp. 785–796.
Lund, J. W., 1974, “Stability and Damped Critical Speeds of a Flexible Rotor in Fluid-Film Bearings,” ASME J. Eng. Ind., May, pp. 509–517.
Badgley, R. H., 1972, “The Design and Usage of Liquid-Lubricated, Self-Acting Tilting-Pad Journal Bearings,” MTI-88tr21, Mechanical Technology Inc., (April 1968, supplements in Dec. 1968 and May 1972).
Coletti, N. J., and Crane, M. E., Jr., 1981, “Centrifugal Compression on the Arun High Pressure Injection Project,” Proceedings of the IMechE Conference on Fluid Machinery for the Oil, Petrochemical and Related Industries, The Hague, Netherlands, March, pp. 63–70.
Memmott, E. A., 1990, “Tilt Pad Seal and Damper Bearing Applications to High Speed and High Density Centrifugal Compressors,” IFToMM, Proceedings of the 3rd International Conference on Rotordynamics, Lyon, pp. 585–590, September 9–12.
Memmott, E. A., 1992, “Stability of Centrifugal Compressors by Applications of Tilt Pad Seals, Damper Bearings, and Shunt Holes,” IMechE, 5th International Conference on Vibrations in Rotating Machinery, Bath, pp. 99–106, September 7–10.
Nicholas,  J. C., Gunter,  E. J., and Allaire,  P. E., 1979, “Stiffness and Damping Coefficients for the Five-Pad Tilting-Pad Bearing,” ASLE Trans., 22(2), April, pp. 113–124.
Kirk,  R. G., and Reedy,  S. W., 1988, “Evaluation of Pivot Stiffness for Typical Tilting-Pad Journal Bearing Designs,” ASME J. Vib., Acoust., Stress, Reliab. Des. 110, April, pp. 165–171.
Smalley, A. J., Almstead, L. G., Lund, J. W., and Koch, E. S., 1974, “User’s Manual—MTI Cadense Program CAD-25—Dynamic Stability of a Flexible Rotor,” Mechanical Technology Inc., February.
Lund, J. W., 1990, “Comments on Modal Analysis of Rotors,” Eleventh Machinery Dynamics Seminar, NRCC, Toronto, Canada, October, pp. 3–13.
Memmott, E. A., 2000, “The Lateral Stability Analysis of a Large Centrifugal Compressor in Propane Service at an LNG Plant,” IMechE, Proceedings of the 7th International Conference on Vibrations in Rotating Machinery, Nottingham, England, pp. 187–198, September 12–14.
Memmott, E. A., 2000, “Empirical Estimation of a Load Related Cross-Coupled Stiffness and The Lateral Stability Of Centrifugal Compressors,” CMVA, Proceedings of the 18th Machinery Dynamics Seminar, Halifax, pp. 9–20, April 26–28.
Memmott, E. A., 2002, “Lateral Rotordynamic Stability Criteria for Centrifugal Compressors,” CMVA, Proceedings of the 20th Machinery Dynamics Seminar, Quebec City, October 21–23.
Wachel, J. C., and von Nimitz, W. W., 1981, “Ensuring the Reliability of Offshore Gas Compressor Systems,” J. Pet. Technol., Nov., pp. 2252–2260.
Marshall, D. F., Hustak, J. F., and Memmott, E. A., 1993, “Elimination of Subsynchronous Vibration Problems in a Centrifugal Compressor by the Application of Damper Bearings, Tilting Pad Seals, and Shunt Holes,” NJIT-ASME-HI-STLE, Rotating Machinery Conference and Exposition, Somerset, New Jersey, November 10–12.
Kirk,  R. G., 1980, “Stability and Damped Critical Speeds: How to Calculate and Interpret the Results,” CAGI Technical Digest, 12(2), pp. 1–14.

Figures

Grahic Jump Location
Approximate peak response speed & amplification factor vs. speed 5 stage compressor in reference 13
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Log dec vs. damper bearing damping 8 stage compressor, Fig. 9 in reference 4
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Log dec vs. damper bearing damping 5 stage compressor in reference 13
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Stability threshold vs. damper bearing damping 5 stage compressor in reference 13
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Damped eigenvalue & log dec vs. speed 5 stage compressor in reference 13
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Undamped critical speed map 5 stage compressor in reference 13
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Damped eigenvalue & log dec vs. speed 8 stage compressor with tilting pad bearings & oil ring seals, Fig. 8 in reference 4
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Damped eigenvalue & log dec vs. speed 8 stage compressor with tilting pad bearings, Fig. 7 in reference 4
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Damped eigenvalue & log dec vs. speed 8 stage compressor with plain cylindrical bearings, Fig. 6 in reference 4
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Log dec vs. cross-coupled stiffness at the midspan 5 stage compressor in reference 13

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