Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on the Acoustic Properties of the Reticulated Plastic Foams

플라스틱 폼의 음향특성 조사

  • 정성수 (한국표준과학연구원, 음향.진동그룹) ;
  • 황철호 (한국표준과학연구원, 음향.진동그룹)
  • Published : 1996.06.01
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Abstract

The absorption coefficients of 3 largely reticulated urethan foams are measured by transfer function method which uses two microphones in an impedance tube. Based on the previously published data, the new modified empirical equations for predicting the characteristic impedance and propagation constant of the largely reticulated urethane foams are developed. Comparison is made between the measured data and the predicted data, based on the previously published equations and the new equation. Good agreement of the absorption coefficient between the measured and predicted data by the new modified empirical equation has been obtained.

Keywords

References

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