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TECHNICAL PAPERS

Spectral Finite Element Analysis of Sandwich Beams With Passive Constrained Layer Damping

[+] Author and Article Information
Gang Wang, Norman M. Wereley

Smart Structures Laboratory, Alfred Gessow Rotorcraft Center, Dept. of Aerospace Engineering, University of Maryland, College Park, MD 20742

J. Vib. Acoust 124(3), 376-386 (Jun 12, 2002) (11 pages) doi:10.1115/1.1469007 History: Received April 01, 2000; Revised February 01, 2002; Online June 12, 2002
Copyright © 2002 by ASME
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References

Figures

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Schematic of cantilevered beam with passive constrained layer damping (PCLD)
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Sandwich beam deflections and nodal degrees of freedom in SFEM
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The effects of number of elements on modal frequencies for specimen 1 having 75% PCLD treatment
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The effects of number of elemente on modal frequencies for specimen 2 having 50% PCLD treatment
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Frequency Response function from the piezoelectric voltage input to the tip displacement output: the PCLD treatment covers 75% of the length of the base beam: SFEM has 4 elements while CFEM has 18 elements plus internal dissipation coordinates
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Frequency Response function from the piezoelectric voltage input to the tip displacement output; the PCLD treatment covers 50% of the length of the base beam: SFEM has 5 elements while CFEM has 18 elements plus internal dissipation coordinates

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