The damping performance of discontinuous constrained viscoelastic damping layer using Integral Finite Elements (IFE) are investigated in this paper. The IFE involves the dynamic analysis of Elastic-Viscoelastic Composite (EVC) structures with frequency-dependant material properties. EVC structures, which incorporate constrained viscoelastic damping treatment, are modelled using IFE’s and conventional FE’s together to deal with the discontinuous treatment of the constraint damping layers. This approach dramatically reduces the number of degrees of freedom of the FE model compared with conventional FE models. By using specialised algorithms developed for EVC structural dynamics analysis, IFE makes the estimation of the dynamic properties of the EVC structures an easy task similar to the structural dynamics analysis using conventional finite element method. Using an IFE model and the special algorithms, the damping performance of various designs of viscoelastic damping treatments are investigated at extremely low computational costs compared with the use of current commercial FE software packages. A guideline is introduced based on the results of the damping performance analysis for the structural design of viscoelastic damping treatments.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4174-X
PROCEEDINGS PAPER
Analysis of the Damping of Beams With Discontinuous Viscoelastic Damping Layer Using Integral Finite Elements
T. Liang,
T. Liang
Academy of China – Engineering Physics, China
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Qian Chen,
Qian Chen
Nanjing University of Aeronautics and Astronautics, Nanjing, China
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S. Olutunde Oyadiji,
S. Olutunde Oyadiji
University of Manchester, Manchester, UK
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Andrew Leung
Andrew Leung
City University of Hong Kong, Hong Kong, China
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T. Liang
Academy of China – Engineering Physics, China
Qian Chen
Nanjing University of Aeronautics and Astronautics, Nanjing, China
S. Olutunde Oyadiji
University of Manchester, Manchester, UK
Andrew Leung
City University of Hong Kong, Hong Kong, China
Paper No:
ESDA2004-58477, pp. 203-209; 7 pages
Published Online:
November 11, 2008
Citation
Liang, T, Chen, Q, Oyadiji, SO, & Leung, A. "Analysis of the Damping of Beams With Discontinuous Viscoelastic Damping Layer Using Integral Finite Elements." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 2. Manchester, England. July 19–22, 2004. pp. 203-209. ASME. https://doi.org/10.1115/ESDA2004-58477
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