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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Flexible Bearing Supports, Using Experimental Data

[+] Author and Article Information
J. A. Vázquez, L. E. Barrett, R. D. Flack

Department of Mechanical, Aerospace and Nuclear Engineering and Applied Science, University of Virginia, Charlottesville, VA 22903

J. Eng. Gas Turbines Power 124(2), 369-374 (Mar 26, 2002) (6 pages) doi:10.1115/1.1426085 History: Received November 01, 1999; Revised February 01, 2000; Online March 26, 2002
Copyright © 2002 by ASME
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References

American Petroleum Institute, 1995, “Centrifugal Compressors for Petroleum, Chemical and Gas Service Industries,” API Standard 617, Sixth Ed.
Barrett, L. E., Nicholas, J. C., and Dhar, D., 1986, “The Dynamic Analysis of Rotor-Bearing Systems Using Experimental Bearing Support Compliance Data,” Proceedings of the Fourth International Modal Analysis Conference, Union College, Schenectady, NY, Society for Experimental Mechanics, Bethel, CT, pp. 1531–1535.
Nicholas,  J. C., and Barrett,  L. E., 1986, “The Effect of Bearing Support Flexibility on Critical Speed Prediction,” ASLE Trans., 29, No. 3, pp. 329–338.
Nicholas, J. C., Whalen, J. K., and Franklin, S. D., 1986, “Improving Critical Speed Calculations Using Flexible Bearing Support FRF Compliance Data,” Proceedings of the 15th Turbomachinery Symposium, Texas A&M University, College Station, TX.
Redmond, I., 1995, “Practical Rotordynamics Modeling Using Combined Measured and Theoretical Data,” Proceedings of the 13th International Modal Analysis Conference, Nashville, TN, Society for Experimental Mechanics, Bethel, CT.
Redmond, I., 1996, “Rotordynamic Modelling Utilizing Dynamic Support Data Obtained From Field Impact Tests,” Proceedings of Sixth International Conference on Vibrations in Rotating Machinery, Oxford, Sept., Paper C500/055/96.
Rouch, K. E., McMains, T. H., and Stephenson, R. W., 1989, “Modeling of Rotor-Foundation Systems Using Frequency-Response Functions in a Finite Element Approach,” 1989 ASME Design Technical Conference 12th Biennial Conference on Mechanical Vibration and Noise, Montreal, Canada ASME, New York, pp. 157–166.
Stephenson,  R. W., and Rouch,  K. E., 1992, “Generating Matrices of the Foundation Structure of a Rotor System From Test Data,” J. Sound Vib., 154, No. 3, pp. 467–484.
Feng, M. S., and Hahn, E. J., 1998, “On the Identification of a Flexibly Supported Rigid Foundation With Unknown Location of the Principal Axes of Inertia,” Proceedings of ISROMAC-7, the 7th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, Feb., Pacific Center of Thermal Fluid Engineering, Bird Rock Publishing, pp. 705–714.
Lees,  A. W., and Friswell,  M. I., 1997, “The Evaluation of Rotor Imbalance in Flexibly Mounted Machines,” J. Sound Vib., 208, No. 5, pp. 671–683.
Lees, A. W., Friswell, M. I., Smart, M. G., and Prells, U., 1998, “The Identification of Foundation Vibration Parameters From Running Machine Data,” Proceedings of ISROMAC-7, the 7th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, HI, Feb., Society for Experimental Mechanics, Bethel, CT, pp. 715–724.
Edwards, S., Lees, A. W., and Friswell, M. I., 1999, “The Identification of Rotor Unbalance From Measured Foundation Response Data,” Proceedings of the 17th International Modal Analysis Conference, Feb. 8–11, Kissimmee, FL, Pacific Center of Thermal Fluid Engineering, Bird Rock Publishing, pp. 1610–1615.
Vázquez, J. A., and Barrett, L. E., 1998, “Representing Flexible Supports by Polynomial Transfer Functions,” ASME Paper 98-GT-27.
Vázquez, J. A., and Barrett, L. E., 1999, “Transfer Function Representation of Flexible Supports and Casings of Rotating Machinery,” Proceedings of the 17th International Modal Analysis Conference, Feb., 8–11, Kissimmee, FL, Society of Experimental Mechanics, Bethel, CT.
Vázquez, J. A., 1999, “Using Transfer Functions to Model Flexible Supports and Casings of Rotating Machinery,” Ph.D. dissertation, University of Virginia, Charlottesville, VA, Jan.
Vázquez, J. A., Barrett, L. E., and Flack, R. D., 1999, “A Flexible Rotor on Flexible Bearing Supports. Part I: Stability,” Proceedings of the 1999 Vibration Conference, Sept. 12–16, Las Vegas, NV, Paper DETC99/VIB-8285.
Vázquez, J. A., Barrett, L. E., and Flack, R. D., 1999, “A Flexible Rotor on Flexible Bearing Supports. Part II: Unbalance Response,” Proceedings of the 1999 Vibration Conference, Sep. 12–16, Las Vegas, NV, Paper DETC99/VIB-8286.
Branagan, L. A., 1988, “Thermal Analysis of Fixed and Tilting Pad Journal Bearings Including Cross-Film Viscosity Variations and Deformations,” Ph.D. dissertation, University of Virginia, Charlottesville, VA.
Sanathanan,  C. K., and Koerner,  J., 1963, “Transfer Function Synthesis as a Ratio of Two Complex Polynomials,” IEEE Trans. Autom. Control, Jan., Society for Experimental Mechanics, Bethel, Ct, pp. 56–58.
Richardson, M. H., and Formenti, D. L., 1982, “Parameter Estimation From Frequency Response Measurements Using Fraction Polynomials,” Proceedings of the 1st International Modal Analysis Conference, Orlando, FL, Society for Experimental Mechanics, Bethel, CT, pp. 167–181.
Richardson, M. H., and Formenti, D. L., 1985, “Global Curve Fitting of Frequency Response Measurement using Rational Fraction Polynomial Method,” Proceedings of the 3rd International Modal Analysis Conference, Orlando, FL, Nov., Society for Experimental Mechanics, Bethel, CT, pp. 390–397.
Friswell,  M. I., and Penny,  J. E. T., 1993, “The Choice of Orthogonal Polynomials in the Rational Fraction Polynomial Method,” Int. J. Anal. Exp. Modal Anal., 8, No. 3, pp. 257–262.
Maia N. M. M., and Silva, J. M. M., 1997, Theoretical and Experimental Modal Analysis, Research Studies Press LTD.

Figures

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Flexible support element design (dimensions are in mm)
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Measured and predicted unbalance response near the middle disk in the horizontal direction. Unbalance distribution 1
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Measured and predicted unbalance response near the right disk in the horizontal direction. Unbalance distribution 2.
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Spectral map of the vibration displacement at the middle disk
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Stability maps comparing different support models
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Bearing stiffness and damping coefficients
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Details of the bearing housing and flexible support
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Magnitude of the measured direct and crosstalk support dynamic compliance in the horizontal direction
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Magnitude of the measured direct and crosstalk support dynamic compliance in the vertical direction
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Magnitude of the measured cross-coupling dynamic compliance

Tables

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