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Localization of natural modes of vibration in bladed disksA study is presented of the mode localization phenomenon in imperfect blade-disk and blade-shroud-disk assemblies. The results indicate that unshrouded blades mounted on stiff disks are especially susceptible, and even small blade imperfections within manufacturing tolerances are likely to trigger mode localization. Increasing the interblade coupling by adding shrouds or reducing the disk stiffness greatly reduces the localization susceptiblity, although certain modes may still become localized if the shrouds are free to slip.
Document ID
19880023771
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bendiksen, O. O.
(Princeton University NJ, United States)
Valero, N. A.
(Princeton Univ. NJ, United States)
Date Acquired
August 13, 2013
Publication Date
May 1, 1987
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
ASME PAPER 87-GT-46
Accession Number
88A10998
Funding Number(s)
CONTRACT_GRANT: NAG3-308
Distribution Limits
Public
Copyright
Other

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