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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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The Error Involved in the Equivalent Electroacoustic Circuit Approach for the Element of Straight Pipe in Multiple Layer Perforated Plate Systems

다중 다공판 시스템에서 직관요소에 대한 전기음향등가회로법의 오류

  • 이동훈 (서울산업대학교 기계공학과) ;
  • 권영필 (숭실대학교 기계공학과)
  • Published : 2003.03.01
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Abstract

The equivalent electroacoustic circuit approach has been conventionally used for the analysis of the multiple layer perforated plate system. However, it is found that an analogy error has been involved in the equivalent electroacoustic approach proposed by previous researchers for the element of straight pipe. Although the pipe between the perforated layers is a distributed element in the analogy, it has been treated as a parallel element by previous investigators. The analogy error is demonstrated by comparing the calculated absorption coefficients based on the parallel circuit and the distributed circuit, respectively, with the measured values by the two-microphone impedance tube method.

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References

  1. 한국소음진동공학회논문집 v.12 no.9 전달행렬법을 이용한 다중 다공판 시스템의 흡음성능 예측 이동훈;허성춘;권영필 https://doi.org/10.5050/KSNVN.2002.12.9.709
  2. Noise Control Engineering Journal v.29 no.3 Micro-perforated Panel Wideband Absorbers Maa, D. Y. https://doi.org/10.3397/1.2827694
  3. Journal of Sound and Vibration v.220 no.5 Predicting the Absorption of Open Weave Textiles and Micro-perforated Membranes Backed by an Air Space Kang, J.;Fuchs, H. V. https://doi.org/10.1006/jsvi.1998.1977
  4. Journal of Sound and Vibration v.215 no.3 The Theoretical and Application Study on a Double Layer Micro-perforated Sound Absorption Structure Zhang, Z. M.;Gu, X. T. https://doi.org/10.1006/jsvi.1997.1693
  5. Sound Absorbing Materials Zwikker, C.;Kosten, C. W.
  6. 17th International Congress on Acoustics Sponsored by JASA, Vol. 1 Structural Acoustic and Vibration Non-dissipative Geometric Wide-band Sound Absorber Shenoda, F. B.
  7. Journal of Sound and Vibration v.248 no.4 Acoustic Transmission Analysis of Multi-layer Absorbers Lee, F. C.;Chen, W. H. https://doi.org/10.1006/jsvi.2001.3825
  8. Acoustics of Ducts and Mufflers Munjal, M. L.
  9. 한국소음진동공학회 추계학술대회논문집 다중 다공판 시스템의 흡음계수 계산에 있어서 전기 음향등가회로법의 오류 이동훈;권영필
  10. J. Acoust. Soc. Am. v.68 no.3 Transfer Function Method of Measuring In-duct Acoustic Properties, Ⅱ. Experiment Chung, J.Y.;Blaser, D. A. https://doi.org/10.1121/1.384782