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Pattern Optimization of Intentional Blade Mistuning for the Reduction of the Forced Response Using Genetic Algorithm  

Park, Byeong-Keun (School of Mechanical ＆ Aerospace Engineering, The Institute of Marine Industry, Gyeongsang National University)
Publication Information
Journal of Mechanical Science and Technology / v.17, no.7, 2003 , pp. 966-977 More about this Journal
Abstract
This paper investigates how intentional mistuning of bladed disks reduces their sensitivity to unintentional random mistuning. The class of intentionally mistuned disks considered here is limited, for cost reasons, to arrangements of two types of blades (A and B, say). A two-step procedure is then described to optimize the arrangement of these blades around the disk to reduce the effects of unintentional random mistuning. First, a pure optimization effort is undertaken to obtain the pattern (s) of the A and B blades that yields small/the smallest value of the largest amplitude of response to a given excitation in the absence of unintentional random mistuning using Genetic Algorithm. Then, in the second step, a qualitative/quantitative estimate of the sensitivity for the optimized intentionally mistuned bladed disks with respect to unintentional random mistuning is performed by analyzing their amplification factor, probability density function and passband/stopband structures. Examples of application with simple bladed disk models demonstrate the significant benefits of using this class of intentionally mistuned disks.
Keywords
Intentional Mistuning; Unintentional Random Mistuning; Monte Carlo Simulation; Probability Density Function; Passband/Stopband Structure;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Castanier, M.P. and Pierre, C., 1993, 'Individual and Interactive Mechanisms for Localization and Dissipation in a Mono-Coupled Nearly Periodic Structure,' Journal of Sound and Vibration, Vol. 168, No. 3, pp. 479-505   DOI   ScienceOn
2 Castanier, M.P. and Pierre, C., 1997, 'Consideration on the Benefits of Intentional Blade Mistuning for the Forced Response of Turbo-machinery Rotors,' Proceedings of the ASME Aerospace Division, AD-Vol. 55, pp. 419-425
3 Castanier, M.P. and Pierre, C., 1997, 'Predicting Localization via Lyapunov Exponent Statistics,' Journal of Sound and Vibration, Vol. 203, No. 1, pp. 151-157   DOI   ScienceOn
4 Castanier, M.P. and Pierre, C., 1998, 'Investigation of the Combined Effects of Intentional and Random Mistuning on the Forced Response of Bladed Disks,' Paper AIAA-98-3720
5 Gen, M. and Cheng, R., 1997, Genetic Algorithms & Engineering Designs, Wiley-Interscience, New York
6 Griffin, J.H. and Sinha, A., 1985, 'The Interaction Between Mistuning and Friction in the Forced Response of Bladed Disk Assemblies,' ASME Journal of Engineering for Gas Turbines and Power, Vol. 107, pp. 205-211   DOI
7 Kaza, K.R.V. and Kielb, R.E., 1984, 'Flutter of Turbofan Rotors with Mistuned Blades,' AIAA Journal, Vol. 22, No. 11, pp. 1618-1625   DOI   ScienceOn
8 Kenyon, J.A. and Griffin, J.H., 2000, 'Intentional Harmonic Mistuning for Robust Forced Response of Bladed Disks,' 5th National Turbine Engine High Cycle Fatigue (HCF) Conference, Chandler, AZ, Mar. 7-9
9 Kruse, M.J. and Pierre, C., 1996, 'Forced Response of Mistuned Bladed Disks Using Reduce-Order Modeling,' Proceedings of the 37th Structures, Structure Dynamics and Materials Conference, Salt Lake City, UT
10 Goldberg, D.E., 1989, Genetic Algorithms in Search, Optimization & Machine Leaning, Addision Wesley, New York, USA
11 Lin, C.C. and Mignolet, M.P., 1996, 'Effects of Damping and Damping Mistuning on the Forced Vibration Response of Bladed Disks,' Journal of Sound and Vibration, Vol. 193, No. 2, pp. 525-543   DOI   ScienceOn
12 Mehmed, O. and Murthy, D.V., 1988, 'Experimental Investigation of Propfan Aeroelastic Response in Off-Axis Flow with Mistuning,' Proceedings of the 24th AIAA/SAE/ASEE Joint Propulsion Conference, Boston Massachusetts
13 Kaza, K.R.V. and Kielb, R.E., 1985, 'Vibration and Flutter of Mistuned Bladed-Disk Assemblies,' Journal of Propulsion, Vol. 1, No. 5, pp. 336-344   DOI   ScienceOn
14 LaBorde, B.H., 1999, 'Assessment of Predictive Capabilities of Mistuning Effects on the Resonant Response of Bladed Disks,' M.S. Thesis, Arizona State University, December
15 Mignolet, M.P., Hu, W. and Judic, I., 1998b, 'On the Forced Response of Harmonically and Partially Mistuned Bladede Disks. Part II: Partial Mistuning and Applications,' Proceedings of the ISROMAC-7 Symposium, Honolulu, Hawaii, Feb. 22-26, Vol. B, pp. 603-613. Also International Journal of Rotating Machinery, Vol. 6, No. 1, pp. 43-56, 2000
16 Mignolet, M.P. and Lin, C.C., 1997, 'Identification of Structural Parameters in Mistuned Bladed Disks,' ASME Journal of Vibration and Accoistics, Vol. 119, pp. 428-438   DOI
17 Ottarsson, G. and Pierre, C., 1995, 'On the Effects of Interblade Coupling on the Statistics of Maximum Forced Response Amplitudes in Mistuned Bladed Disks,' Proceedings of the 36th Structures, Structural Dynamics, and Materal Conference and Adaptive Structures Forum, New Orleans, Louisiana, Apr. 10-13, Vol. 5, pp. 3070-3078
18 Sinha, A., 1986, 'Calculating the Statistics of Forced Response of a Mistuned Bladed Disk Assembly,' AIAA Journal, Vol. 24, No. 11, pp. 1797-1801   DOI   ScienceOn
19 Wei, S.-T. and Pierre, C., 1990, 'Statistical Analysis of the Forced Response of Mistuned Cyclic Assemblies,' AIAA Journal, Vol. 28, No. 5, pp. 861-868   DOI
20 Mignolet, M.P., Hu, W., Jadic, I., 1998a, 'On the Forced Response of Harmonically and Partially Mistuned Bladed Disks. Part I: Harmonic Mistuning,' Proceedings of the ISROMAC-7 Symposium, Honolulu, Hawaii, Feb. 22-26, Vol. B, pp. 591-602, Also International Journal of Rotating Machinery, Vol. 6, No. 1, pp. 29-41, 2000
21 Mignolet, M.P., Delor, J.P. and Rivas-Guerra, A.J., 1999, 'Identification of Mistuning Characteristics of Bladed Disks from Free Response Data, Part II,' 44th International Gas Turbine and Aeroengine Congress and Exposition, Indianapolis, Indiana, Jun. 7-11, ASME paper 99-GT-382
22 Wei, S.T. and Pierre, C., 1988a, 'Localization Phenomena in Mistuned Assemblies with Cyclic Symmetry - Part I : Free Vibrations,' Journal of Vibration, Acoustics, Stress and Reliability in Design, Vol. 110, No. 4, pp. 429-438   DOI
23 Wei, S.T. and Pierre, C., 1988b, 'Localization Phenomena in Mistuned Assemblies with Cyclic Symmetry-Part II : Forced Vibrations,' Journal of Vibration, Acoustics, Stress and Reliability in Design, Vol. 110, No. 4, pp. 439-449   DOI