Vibration energy transmission in a structure consisting of thick elements

Hiroshi Nishino, Iwao Honda, Kazuhide Ohta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Regarding the prediction of structure-borne sound in large structures consisting of thick plates, there are some difficulties in applying the conventional SEA (statistical energy analysis) based on thin plate bending and in-plane waves. This paper examines the applicability of WIA (wave intensity analysis) to the prediction of the vibration energy level in an L-shaped structure assembled by thick plates. The bending wave in plates is thus expressed by Mindlin's theory, taking the shear deformation and rotary inertia into consideration. The new model is introduced to improve the accuracy of wave transmission coefficients for line junctions between thick plates. As a result of comparison of the present method with FEM (finite element method), reasonable results are obtained for the vibration energy level in the L-shaped structure, within approximately 2dB up to 2kHz.

Original languageEnglish
Title of host publicationProceedings of the Tenth International Congress on Sound and Vibration
EditorsA. Nilson, H. Boden
Pages1147-1154
Number of pages8
Publication statusPublished - 2003
Externally publishedYes
EventProceedings of the Tenth International Congress on Sound and Vibration - Stockholm, Sweden
Duration: Jul 7 2003Jul 10 2003

Other

OtherProceedings of the Tenth International Congress on Sound and Vibration
CountrySweden
CityStockholm
Period7/7/037/10/03

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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