An Integrated Approach for Friction Damper Design

[+] Author and Article Information
T. M. Cameron, J. H. Griffin, T. M. Hoosac

Department of Mechanical Engineering, Carnegie-Mellon University, Pittsburgh, PA 15213

R. E. Kielb

NASA Lewis Research Center, Cleveland, OH

J. Vib. Acoust 112(2), 175-182 (Apr 01, 1990) (8 pages) doi:10.1115/1.2930110 History: Received August 30, 1988; Online June 17, 2008


A 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 in terms of a damper performance curve to determine optimal design parameters, when the levels of excitation and damping in the system are unknown. Unique experiments are performed on a test disk in order to demonstrate and verify the accuracy of the design procedure.

Copyright © 1990 by The American Society of Mechanical Engineers
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