Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Development of Power Flow Boundary Element Method for 3-dimensional Multi-domain Noise Analysis

3차원 다영역 공간의 소음해석을 위한 파워흐름경계요소법 개발

  • 김종도 (서울대학교 대학원 조선해양공학과) ;
  • 홍석윤 (서울대학교 조선해양공학) ;
  • 송지훈 (전남대학교 조선해양공학과)
  • Received : 2011.08.18
  • Accepted : 2011.09.19
  • Published : 2011.10.20
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Abstract

The direct and indirect PFBEM(power flow boundary element method) for the treatment of the 3 dimensional multi-domain problems are proposed to predict the acoustic energy density in medium to high frequency ranges. In the proposed method, the equation is derived in a matrix form by considering coupled relationships of the power flow at the interface of given domains. The proposed method can successfully obtain the analytical solutions for the problems of coupled cubes and the small-scale reverberant chamber. Then the experiment is carried out to obtain STL(sound transmission loss) by using small-scale reverberant chamber and the results are compared with analysis results.

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References

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