Prediction of far field sound pressure of a diesel-generator using the inverse boundary element method

D. W. Herrin, J. Liu, D. J. Kato, A. F. Seybert

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The inverse boundary element method (BEM) is used to reconstruct the vibration on the surface of a partially-enclosed diesel-generator set via sound pressure measurements in the near field. Then the sound pressure in the far field is predicted using a forward BEM analysis. Sound pressure measurements were made at a number of points in the far field of the generator set and compared to the predicted results. The results indicate that the vibration predicted by the inverse BEM can be used to accurately predict the sound pressure as far away as seven meters from the source. A partial BEM model using only visible elements was used to predict the same results with good success.

Original languageEnglish
Title of host publication39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Pages5806-5813
Number of pages8
StatePublished - 2010
Event39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 - Lisbon, Portugal
Duration: Jun 13 2010Jun 16 2010

Publication series

Name39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Volume7

Conference

Conference39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010
Country/TerritoryPortugal
CityLisbon
Period6/13/106/16/10

Keywords

  • BEM
  • Generator
  • Holography
  • Inverse BEM

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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