Abstract
A method for predicting the vibratory response of bladed disks under high engine acceleration rates is developed. The method is based on the Fundamental Mistuning Model, an existing reduced order model for predicting the steady-state vibratory response. In addition, a criterion is developed for a critical engine acceleration rate, above which transient effects play a large role in the response. It is shown that military engines operate at acceleration rates above this critical value and therefore transient effects are important in practice.
Issue Section:
Technical
Papers
1.
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, A. V.
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,” ASME J. Eng. Gas Turbines Power
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), pp. 742
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.2.
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, and Pierre
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), pp. 439
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, and Griffin
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), pp. 893
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.7.
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, E.
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, K.
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, D.
, and Elliott
, R.
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,” 5th National Turbine Engine High Cycle Fatigue Conference
, Chandler, AZ.8.
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, and Griffin
, J. H.
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), pp. 597
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.9.
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, and Pierre
, C.
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, and Pierre
, C.
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), pp. 589
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), pp. 81
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, O.
, and Kurkov
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, D. M.
, and Griffin
, J. H.
, 2004, “Exploring the Use of FMM ID for Engine Health Monitoring
,” Proceedings of the 9th National High Cycle Fatigue Conference
, Pinehurst, NC
.17.
Feiner
, D. M.
, and Griffin
, J. H.
, 2003a, “Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part I: Theory
,” ASME Journal of Turbomachinery, 126
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), pp. 150
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.18.
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, E. P.
, and Ewins
, D. J.
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,” ASME J. Turbomach.
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, and Imregun
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, J. G.
, and Green
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,” Proceedings of the Third National High Cycle Fatigue Conference
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Feiner
, D. M.
, and Griffin
, J. H.
, 2003b, “Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part II: Application
,” ASME Journal of Turbomachinery, 126
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), pp. 159
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Feiner
, D. M.
, Griffin
, J. H.
, Jones
, K. W.
, Kenyon
, J. A.
, Mehmed
, O.
, and Kurkov
, A. P.
, 2003 “System Identification of Mistuned Bladed Disks from Traveling Wave Response Measurements
,” ASME Paper No. VIB-48448.Copyright © 2006
by American Society of Mechanical Engineers
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