Viscoelastic Circular Plate Wave Guide Absorber

[+] Author and Article Information
C. D. Hettema, Y. S. Shin, K. S. Kim

Department of Mechanical Engineering, Naval Postgraduate School, Monterey, CA 93943-5000

J. Vib. Acoust 113(3), 383-386 (Jul 01, 1991) (4 pages) doi:10.1115/1.2930195 History: Received October 01, 1990; Revised January 01, 1991; Online June 17, 2008


A waveguide absorber removes and dissipates vibrational energy from a structure by traveling waves. The performance of a wave guide absorber is determined by the driving point impedance. In this study a viscoelastic circular plate waveguide absorber is developed and it is shown that the driving point impedance of the viscoelastic wave guide absorber can be theoretically predicted using a Mindlin type plate theory. To validate the results of this study, viscoelastic circular plates were tested to determine their driving point impedance.

Copyright © 1991 by The American Society of Mechanical Engineers
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