High Frequency Vibro-Acoustic Analysis Using Energy Finite Element Method

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.

Record URL:
- https://doi.org/10.4271/2009-01-0771
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19463995
Supplemental Notes:
- Abstract reprinted with permission of SAE International.
Authors:
- Zhang, Weiguo
- Raveendra, S
Conference:
- SAE World Congress & Exhibition
- Location: Detroit Michigan, United States
- Date: 2008-4-14 to 2008-4-17
Publication Date: 2009-4-20

Language

English

Media Info

Media Type: Web
Features: References;
Pagination: pp 822-831
Serial:
- SAE International Journal of Passenger Cars - Mechanical Systems
- Volume: 2
- Issue Number: 1
- Publisher: SAE International
- ISSN: 1946-3995
- EISSN: 1946-4002
- Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-06/

Subject/Index Terms

TRT Terms: Acoustics; Finite element method; Noise; Vehicle cabs
Subject Areas: Highways; Vehicles and Equipment;

Filing Info

Accession Number: 01705686
Record Type: Publication
Source Agency: SAE International
Report/Paper Numbers: 2009-01-0771
Files: TRIS, SAE
Created Date: May 23 2019 4:27PM