Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2008.04a
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  • Pages.355-358
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  • 2008
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Influence of modeling fineness of SEA in shipboard noise predictions

선박소음해석에 있어서 SEA 모델링 정밀도의 영향

  • 강현주 (한국기계연구원 음향연구팀) ;
  • 김재승 (한국기계연구원 음향연구팀) ;
  • 김현실 (한국기계연구원 음향연구팀) ;
  • 김봉기 (한국기계연구원 음향연구팀) ;
  • 김상렬 (한국기계연구원 음향연구팀)
  • Published : 2008.04.17
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Abstract

This study deals with a substantial problems with SEA modeling methods in shipboard noise predictions. As a first problems with respect to modeling, fineness of model that represents a real structure is numerically investigated by comparison among 3 models, Fine, Coarse and Simplified models. Comparison reveals that Fine model shows the lowest noise level among them since this model involve more energy transfer paths than the other models. Influence of in-plane wave is also examined by numerical comparison. It is clear that inclusion of in-plane wave affects the high frequency and the cabin far from a source.

Keywords