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

  • 2001.11b
  • /
  • Pages.882-887
  • /
  • 2001
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Effect of mass-spring-mass resonance in sound Insulation characteristic of multi-layered panels

다중판의 차음특성에 있어서 mass-spring-mass 공진효과

  • 강현주 (한국기계연구원 음향연구그룹) ;
  • 김재승 (한국기계연구원 음향연구그) ;
  • 김상렬 (한국기계연구원 음향연구그) ;
  • 엄재광 (삼성중공업 거제조선소, 조선플랜트 연구) ;
  • 김봉기 (한국기계연구원 음향연구그룹)
  • Published : 2001.11.01
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Abstract

This paper deals with the effect of mass-spring-mass resonance that is a characteristics of the multi-layered panels in order to enhance sound insulation performance. From theoretical and experimental investigation, it is evident that tuning mass-spring-mass resonance by controlling elastic modulus of the core materials is very important to improve the STC value without increasing the weight of panels, resulting in enhancing STC value more than 10 dB.

Keywords