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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

The Identification of the Unbalance of a Flexible Rotating Machine From a Single Rundown

[+] Author and Article Information
A. W. Lees, J. K. Sinha

Department of Mechanical Engineering, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK  

M. I. Friswell

Department of Aerospace Engineering, University of Bristol, Bristol BS8 1TR, UK

J. Eng. Gas Turbines Power 126(2), 416-421 (Jun 07, 2004) (6 pages) doi:10.1115/1.1691441 History: Received December 01, 2001; Revised March 01, 2002; Online June 07, 2004
Copyright © 2004 by ASME
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References

Adams, M. L., and McLosky, T. H., 1984, “Large Unbalance Vibration in Steam Turbine Generator Sets,” I.Mech.E., Conference, Vibrations in Rotating Machinery, York, UK, Sept. 11–13.
Davies, W. G. R., Lees, A. W., Mayes, I. W., and Worsfold J. H., 1976, “Vibration Problems in Power Stations,” I.Mech.E., Conference Vibrations in Rotating Machinery, Cambridge, UK. Sept.
Mayes, I. W., and Davies, G. W. R., 1980, “A Method of Calculating the Vibrational Behavior of Coupled Rotating Shafts Containing a Transverse Crack,” I.Mech.E., Conference, Vibrations in Rotating Machinery, Cambridge, UK, Sept. 2–4.
Kellenburger,  W., 1972, “Should a Flexible Rotor be Balanced in N or N+2 Planes?” J. Eng. Ind., 94, pp. 548–560.
Nicholas,  J. C., Gunter,  E. J., and Allaire,  P. E., 1976, “Effect of Residual Shaft Bow on Unbalance Response and Balancing of a Single Mass Flexible Rotor: Part I—Unbalance Response,” J. Eng. Power, 98, pp. 171–181.
Nicholas,  J. C., Gunter,  E. J., and Allaire,  P. E., 1976, “Effect of Residual Shaft Bow on Unbalance Response and Balancing of a Single Mass Flexible Rotor: Part II—Balancing,” ASME J. Eng. Gas Turbines Power, 98, pp. 182–189.
Parkinson,  A. G., Darlow,  M. S., and Smalley,  A. J., 1984, “Balancing Flexible Rotating Shafts With an Initial Bend,” AIAA J., 22(5), pp. 686–689.
Parkinson,  A. G., 1991, “Balancing of Rotating Machinery,” J. Mech. Eng. Sci., 205, pp. 53–66.
Foiles,  W. C., Allaire,  P. E., and Gunter,  E. J., 1998, “Review: Rotor Balancing,” Shock and Vibration,5, pp. 325–336.
Edwards,  S., Lees,  A. W., and Friswell,  M. I., 1998, “Fault Diagnosis of Rotating Machinery,” Shock Vib. Dig., 30(1), pp. 4–13.
Maslen, E. H., Vazquez, J. A., and Sortore, C. K., 2000, “Reconciliation of Rotordynamic Models With Experimental Data,” ASME Paper No. 2000-GT-0395.
Vazquez,  J. A., Maslen,  E. H., Ahn,  H.-J. and Han,  D.-C., 2001, “Model Identification of a Rotor With Magnetic Bearings,” ASME J. Eng. Gas Turbines Power, 125, pp. 148–155.
Lees, A. W., and Simpson, I. C., 1983, “The Dynamics of Turbo-Alternator Foundations,” IMechE Conference Paper C6/83, Feb., London, UK.
Lees, A. W., 1988, “The Least Squares Method Applied to Identify Rotor/Foundation Parameters,” I.Mech.E, Conference, Vibrations in Rotating Machinery, Edinburgh, UK, Sept. 13–15.
Provassi,  R., Zanetta,  G. A., and Vania,  A., 2000, “The Extended Kalman Filter in the Frequency Domain for the Identification of Mechanical Structure Excited by Multiple Sinusoidal Inputs,” Mech. Syst. Signal Process., 14(3), pp. 327–341.
Zanetta, G. A., 1992, “Identification Methods in the Dynamics of Turbogenerator Rotors,” I.Mech.E. Conference, Vibrations in Rotating Machinery, Bath, UK, pp. 173–182.
Vania, A., 2000, “On the Identification of the Foundation of a Large Turbogenerator Unit by the Analysis of Transient Vibrations,” I.Mech.E. Conference, Vibrations in Rotating Machinery, Nottingham, UK., Sept. 12–14.
Feng,  N. S., and Hahn,  E. J., 1995, “Including Foundation Effects on the Vibration Behavior of Rotating Machinery,” Mech. Syst. Signal Process., 9(3), pp. 243–256.
Smart,  M. G., Friswell,  M. I., and Lees,  A. W., 2000, “Estimating Turbogenerator Foundation Parameters—Model Selection and Regularisation,” Proc. R. Soc. London, Ser. A, 456, pp. 1583–1607.
Lees, A. W., and Friswell, M. I., 1996, “Estimation of Forces Exerted on Machine Foundations,” International Conference Identification in Engineering Systems, University of Wales, Swansea, UK, pp. 793–803.
Lees,  A. W., and Friswell,  M. I., 1997, “The Evaluation of Rotor Imbalance in Flexibly Mounted Machines,” J. Sound Vib., 208(5), pp. 671–683.
Edwards,  S., Lees,  A. W., and Friswell,  M. I., 2000, “Experimental Identification of Excitation and Support Parameters of a Flexible Rotor-Bearing-Foundation System From a Single Run-Down,” J. Sound Vib., 232pp. (5), 963–992.
Hamrock, B. J., 1994, Fundamentals of Fluid Film Lubrication, McGraw-Hill, Englewood Cliffs, NJ.
Lawson, C. L., and Hanson, R. J., Solving Least Squares Problems, Prentice-Hall, Englewood Cliffs, NJ.
Golub, G. H., and Van Loan, C. F., 1990, Matrix Computations, John Hopkins, Baltimore, MD.
Hansen,  P. C., 1994, “Regularisation Tools: A MATLAB Package for Analysis and Solution of Discrete Ill-Posed Problems,” Numer. Algorithms, 6, pp. 1–35.

Figures

Grahic Jump Location
Rotor-bearing-foundation interaction
Grahic Jump Location
Comparison of measured and estimated response using method 1
Grahic Jump Location
Comparison of measured and estimated response using method 2

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