Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2002.05a
  • /
  • Pages.1081-1085
  • /
  • 2002
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Prediction of Isolation Performance of Multi-Layered Sound Barrier System Using the Sound Pressure Radiated by Point Impact

점가진력에 의해 방사된 읍압을 이용한 다중 적층 흡차음 시스템의 차음 성능 예측

  • 김정수 (서울대학교 기계항공공학부 대학원) ;
  • 신재성 (서울대학교 기계항공공학) ;
  • 강연준 (서울대학교 기계항공공학부)
  • Published : 2002.05.01
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Abstract

A modeling is developed to predict the isolation performance of sound barrier systems under the sound pressure radiated from excited by point impact. The predicted results are compared with the measured results obtained by using APAMAT II. This instrument provides a combination of structure-borne noise and air-borne noise, which corresponds to rolling noise, by applying the excitation system projected steel balls against the steel sheet.

Keywords