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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Power Flow Analysis of Coupled Co-planar Orthotropic Plates

동일 평면상에서 연성된 직교이방성 평판의 진동파워흐름해석

  • 송지훈 (전남대학교 조선해양공학) ;
  • 박도현 (대우조선해양 선박해양연구소) ;
  • 홍석윤 (서울대학교 조선해양공학과) ;
  • 길현권 (수원대학교 기계공학과)
  • Received : 2010.08.06
  • Accepted : 2010.09.03
  • Published : 2010.09.20
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Abstract

In this paper, the power flow analysis(PFA) method was developed to predict the vibrational responses of coupled co-planar orthotropic plates in frequencies ranging from medium to high. To cover the power transmission and reflection at the joint of the orthotropic plates, the wave transmission approach is applied with the assumption that all the incident waves are normal to the joint. Through numerical analyses, the power flow energy density and intensity fields of coupled co-planar orthotropic plates were compared with those of classical modal solutions by changing the frequency and internal loss factor, and they show good agreement in terms of the global decay and the attenuation patterns of the energy density.

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References

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