On Turbulence-Induced Vibrations of a Thin Ribbon With Velocity-Dependent Damping

[+] Author and Article Information
M. E. McCormick

Department of Naval Systems Engineering, U. S. Naval Academy, Annapolis, Md.

T. C. Ripley

Graduate School, Northwestern University, Evanston, Ill.

J. Appl. Mech 37(4), 1172-1176 (Dec 01, 1970) (5 pages) doi:10.1115/1.3408686 History: Received November 30, 1968; Revised August 29, 1969; Online July 12, 2010


Results of an experimental study of the turbulence-induced random vibrations of a thin metal ribbon show that an interaction between the vibrating surface and the turbulence exists which results in an increase in the turbulent energy within the boundary layer. In addition, the system damping is shown to vary with the free-stream velocity and to be proportional to the amplitude response of the ribbon. The experimental data and an accompanying theoretical analysis give support to the belief that the damping is primarily a velocity-squared type which is characteristic of a flat plate vibrating normally in a fluid.

Copyright © 1970 by ASME
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