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TECHNICAL BRIEFS

Flexural Vibration of Segmented Elastic-Viscoelastic Sandwich Beams

[+] Author and Article Information
B. E. Sandman

Naval Underwater Systems Center, Newport, R. I.

J. Appl. Mech 42(4), 897-900 (Dec 01, 1975) (4 pages) doi:10.1115/1.3423736 History: Received January 01, 1975; Revised June 01, 1975; Online July 12, 2010

Abstract

A pair of governing differential equations form the basis for the study of steady-state forced vibration of a sandwich beam with longitudinal nonuniformity in the stiffness and mass of the middle layer. The spatial solution for simply supported boundary conditions is obtained by a Fourier analysis of both material and kinematic variations. The solution is utilized in the numerical study of a sandwich beam with a segmented configuration of elastic and viscoelastic core materials. The results exemplify a tuned configuration of core segments for optimum damping of the first resonant mode.

Copyright © 1975 by ASME
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