Abstract
The inverse boundary element method (BEM) is a numerical procedure whereby sound pressure measurements in the near field are used to predict the vibration on a vibrating surface. After the vibration on the surface (or particle velocity in the case of an opening) is determined, the sound pressure in the far field can be predicted using a forward BEM analysis. This paper will examine the applicability of the inverse BEM to predicting sound pressure in the far field on two examples; an engine cover and generator set.The results indicate that the inverse BEM can be used to accurately predict far field sound pressure. Additionally, it is demonstrated that a partial or patch BEM model of a surface can be utilized successfully in some instances as a means of reducing the computation time.
Original language | English |
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Pages (from-to) | 74-82 |
Number of pages | 9 |
Journal | Noise Control Engineering Journal |
Volume | 58 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2010 |
ASJC Scopus subject areas
- Building and Construction
- Automotive Engineering
- Aerospace Engineering
- Acoustics and Ultrasonics
- Mechanical Engineering
- Public Health, Environmental and Occupational Health
- Industrial and Manufacturing Engineering