Engineering Mechanics

International Conference

Proceedings Vol. 9 (2003)


May 11 – 15, 2003, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 80-86246-18-3 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Determination of SEA coupling loss factors using Finite Element Method
Švancara P.
pages 344 - +10p., full text

Statistical Energy Analysis (SEA) is suitable method for analysis of sound and vibration in high-frequency range, but to build a reliable SEA model is necessary correctly determine individual SEA parameters. Especially for subsystems with complex geometry and material may be desirable to use experimental or numerical methods to identify their parameters. In this paper is Finite Element Method (FEM) in combination with Power injection method (PIM) used for evaluation of coupling loss factors. Methodology is illustrated on several examples of connected plates and beams. Statistical and sensitivity analysis of this methodology is also presented.

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