The Vibration of an Internally Damped Sandwich Plate Radiating Into a Fluid Medium

[+] Author and Article Information
I. W. Jones, V. L. Salerno

Don Bosco Institute for Research, Ramsey, N. J.

J. Eng. Ind 87(3), 379-384 (Aug 01, 1965) (6 pages) doi:10.1115/1.3670849 History: Received August 21, 1964; Online December 08, 2011


An analysis is given for the vibration of a long sandwich plate with linear internal damping properties. The plate is subjected to a time-harmonic pressure loading of constant amplitude and is considered vibrating both in vacuo and in an environment consisting of vacuum on one side and a fluid medium on the other. Numerical results are presented for both a conventional and a highly damped sandwich plate. The conventional (aluminum honeycomb) sandwich plate produces only a small amount of damping, but when the honeycomb core is replaced by a highly dissipative thermoplastic, the maximum deflection and stress at resonance are reduced theoretically by about two orders of magnitude.

Copyright © 1965 by ASME
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