The Journal of the Acoustical Society of Korea

The Acoustical Society of Korea (한국음향학회)
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Hybrid Type Vibration Power Flow Analysis Method Using SEA Parameters

  • Park, Young-Ho (Department of Naval Architecture and Ocean Engineering Seoul National University) ;
  • Hong, Suk-Yoon (Department of Naval Architecture and Ocean Engineering Seoul National University)
  • Published : 2002.12.01
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Abstract

This paper proposes a hybrid method for vibration analysis in the medium to high frequency ranges using Power Flow Analysis (PFA) algorithm and Statistical Energy Analysis (SEA) coupling concepts. The main part of the developed method is the application of coupling loss factor (CLF) suggested in SEA to the power transmission, reflection coefficients in PI' A boundary conditions. The developed hybrid method shows very promising results with regard to the applications for the various damping loss factors in wide frequency ranges. And also this paper presents the applied results of Power Flow Finite Element Method (PFFEM) by forming the new joint element matrix with CLF to analyze the various plate structures in shape. The analytical results of automobile, complex plate structures show good agreement with those of PFFEM using the PFA coefficients.

Keywords

References

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