An integrated approach for friction damper designA procedure is outlined for determining the optimal design of friction dampers for high speed turbomachinery blading. The procedure includes: an integration of bench test results with finite element analysis and a single mode blade model to ensure accuracy of the analytical model and improve reliability of the friction damper design; an extension of the single mode blade model to predict the engine behavior of friction dampers; and a new way of viewing analytical and experimental results to determine optimal design parameters when the levels of excitation and damping in the system are unknown. Analysis and experiments are performed on a test disk in order to demonstrate and verify the accuracy of the design procedure.
Document ID
19880044371
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cameron, T. M. (Carnegie-Mellon Univ. Pittsburgh, PA, United States)
Griffin, J. H. (Carnegie-Mellon Univ. Pittsburgh, PA, United States)
Hoosac, T. M. (Carnegie-Mellon University Pittsburgh, PA, United States)
Kielb, R. E. (NASA Lewis Research Center Cleveland, OH, United States)