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TECHNICAL PAPERS

Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part I: Theory

[+] Author and Article Information
D. M. Feiner, J. H. Griffin

Department of Mechanical Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213

J. Turbomach 126(1), 150-158 (Mar 26, 2004) (9 pages) doi:10.1115/1.1643913 History: Received December 01, 2002; Revised March 01, 2003; Online March 26, 2004
Copyright © 2004 by ASME
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References

Srinivasan,  A. V., 1997, “Flutter and Resonant Vibration Characteristics of Engine Blades,” ASME J. Eng. Gas Turbines Power, 119, pp. 742–775.
Castanier,  M. P., Ottarsson,  G., and Pierre,  C., 1997, “A Reduced Order Modeling Technique for Mistuned Bladed Disks,” ASME J. Vibr. Acoust., 119, pp. 439–447.
Yang,  M.-T., and Griffin,  J. H., 2001, “A Reduced Order Model of Mistuning Using a Subset of Nominal Modes,” ASME J. Eng. Gas Turbines Power, 123, pp. 893–900.
Petrov, E., Sanliturk, K., Ewins, D., and Elliott, R., 2000, “Quantitative Prediction of the Effects of Mistuning Arrangement on Resonant Response of a Practical Turbine Bladed Disk,” 5th National Turbine Engine High Cycle Fatigue Conference, Chandler, AZ.
Feiner,  D. M., and Griffin,  J. H., 2002, “A Fundamental Model of Mistuning for a Single Family of Modes,” ASME J. Turbomach., 124, 597–604.
Seinturier, E., Lombard, J. P., Berthillier, M., and Sgarzi, O., 2002, “Turbine Mistuned Forced Response Prediction: Comparison With Experimental Results,” ASME Paper 2002-GT-30424.
Judge, J. A., Pierre, C., and Ceccio, S. L., 2002, “Mistuning Identification in Bladed Disks,” Proceedings of the International Conference on Structural Dynamics Modeling, Madeira Island, Portugal.
Mignolet,  M. P., Rivas-Guerra,  A. J., and Delor,  J. P., 2001, “Identification of Mistuning Characteristics of Bladed Disks From Free Response Data—Part I,” ASME J. Eng. Gas Turbines Power, 123, pp. 395–403.
Rivas-Guerra,  A. J., Mignolet,  M. P., and Delor,  J. P., 2001, “Identification of Mistuning Characteristics of Bladed Disks From Free Response Data—Part II,” ASME J. Eng. Gas Turbines Power, 123, pp. 404–411.
Feiner, D. M., 2002, “A Fundamental Model of Mistuning for Forced Response Prediction and System Identification,” Ph.D. dissertation, Carnegie Mellon University, Pittsburgh, PA.

Figures

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Finite element model used to represent compressor
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Natural frequencies of the compressor with no mistuning
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Comparison of mistuning from FMM ID with FEM benchmark
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Illustration of a rotor with exaggerated stagger angle mistuning
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Representative mistuned mode caused by stagger angle mistuning
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Comparison of mistuning from FMM ID and the variations in the stagger angles
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Comparison of mistuning from FMM ID with FEM benchmark
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Comparison of the tuned system frequencies from FMM ID and FEM
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Frequency response of blades to a six engine order excitation

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