Dry Friction Damping Mechanisms in Engine Blades

[+] Author and Article Information
A. V. Srinivasan

Applied Mechanics Research, United Technologies Research Center, East Hartford, Conn. 06108

D. G. Cutts

United Technologies Research Center, East Hartford, Conn. 06108

J. Eng. Power 105(2), 332-341 (Apr 01, 1983) (10 pages) doi:10.1115/1.3227420 History: Received December 14, 1981; Online September 28, 2009


In the context of jet engines, significant vibration damping due to dry friction can occur at (a) shroud interfaces of fans and (b) the platform of turbine blades fitted with “platform dampers.” Analytical and experimental studies in regard to this important source of nonaerodynamic damping of blade vibration are presented in this paper. Comparisons between results from analytical models and laboratory test data are made and discussed.

Copyright © 1983 by ASME
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