High Frequency Vibro-Acoustic Analysis Using Energy Finite Element Method

Event
SAE World Congress & Exhibition
Authors Abstract
Content
As an alternative method to Statistical Energy Analysis (SEA), Energy Finite Element Method (EFEM) offers several unique advantages for vibro-acoustic analysis of structural-acoustic systems. In this paper, the theory of the energy finite element method is overviewed. The main developments of a recently available EFEM code are presented. This is followed by the investigation of several example problems using EFEM; (a) the acoustic pressure computation in an acoustical duct, (b) the sound transmission loss of an automotive dash, and (c) the vibro-acoustic analysis of a truck cab. The EFEM predictions are compared to the analytical solutions, SEA predictions or test data and good correlations are observed. Further, the advantages of EFEM in the solution of high and middle frequency vibro-acoustic problems are discussed.
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DOI
https://doi.org/10.4271/2009-01-0771
Pages
10
Citation
Zhang, W., and Raveendra, S., "High Frequency Vibro-Acoustic Analysis Using Energy Finite Element Method," SAE Int. J. Passeng. Cars - Mech. Syst. 2(1):822-831, 2009, https://doi.org/10.4271/2009-01-0771.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-0771
Content Type
Journal Article
Language
English