A theory was previously developed for predicting robust maximum forced response in mistuned bladed disks from distortion of a structural mode. This paper describes an experiment to demonstrate the theory. A bladed disk is designed to be sufficiently sensitive to mistuning to obtain maximum response. The maximum amplitude magnification from mistuning is predicted using the theory, 1.918. The bladed disk is intentionally mistuned to obtain the maximum response, and the response to an engine order traveling wave excitation is measured. The measured amplitude magnification is in close agreement with the theory. The robustness of the maximum response is demonstrated.
Experimental Demonstration of Maximum Mistuned Bladed Disk Forced Response
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Kenyon, JA, & Griffin, JH. "Experimental Demonstration of Maximum Mistuned Bladed Disk Forced Response." Proceedings of the ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. Volume 4: Turbo Expo 2003. Atlanta, Georgia, USA. June 16–19, 2003. pp. 195-205. ASME. https://doi.org/10.1115/GT2003-38060
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