Using a simplified but representative model for a mistuned bladed disk, a series of case studies has been made to examine in detail the influence of various parameters on the resonant response levels of each blade on the disk. Although confined to a specific model of a 33-bladed disk, and thus not attempting to generalize its results, the study examines systematically the importance of individual blade mistune, precision of individual blade data, position in an arrangement, and type of arrangement. It is found that mistuning always causes a deterioration in the vibration environment in that the maximum response is always increased, although the extent of this worsening varies over quite a wide range. In this study, a blade with an extreme of mistune is always found to suffer the highest response levels.
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April 1984
This article was originally published in
Journal of Vibration, Acoustics, Stress, and Reliability in Design
Research Papers
Resonant Vibration Levels of a Mistuned Bladed Disk
D. J. Ewins,
D. J. Ewins
Imperial College of Science and Technology, London, England
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Z. S. Han
Z. S. Han
Imperial College of Science and Technology, London, England
Search for other works by this author on:
D. J. Ewins
Imperial College of Science and Technology, London, England
Z. S. Han
Imperial College of Science and Technology, London, England
J. Vib., Acoust., Stress, and Reliab. Apr 1984, 106(2): 211-217 (7 pages)
Published Online: April 1, 1984
Article history
Received:
June 17, 1983
Online:
November 23, 2009
Citation
Ewins, D. J., and Han, Z. S. (April 1, 1984). "Resonant Vibration Levels of a Mistuned Bladed Disk." ASME. J. Vib., Acoust., Stress, and Reliab. April 1984; 106(2): 211–217. https://doi.org/10.1115/1.3269171
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