Sound Transmission Loss of Aluminium Extruded panels for Railway vehicles

철도차량용 알루미늄 압출재의 투과손실

  • 김석현 (강원대 정밀기계공학과) ;
  • 박정철 (청호정밀 기계연구소) ;
  • 김종년 (한국고속철도차량 기술연구소)
  • Published : 2000.08.01

Abstract

Sound transmission characteristics are investigated on the aluminium extruded panels used for railway vehicles. An equivalent orthotropic plate model and mass law are applied to predict the sound transmission loss. An extruded panel specimen used in the floor of railway vehicles is manufactured and is tested to measure sound transmission loss by two reverberant chamber method. Predicted transmission loss I compared with measured values and the effect of local resonance on the transmission characteristics is identified. The results are applied to design the extruded panel having better sound insulation performance.

Keywords

References

  1. Acoustics v.10 Untersuchungen an Orthotropen Platten Heckl,M.
  2. Engineering Noise Control Bies,D.A.;Hansen,C.H.
  3. Proceedings of the Institude of Acoustics v.10(5) measurement of Sound Absorption and Transmission of Corrugated Steel Plates Alexander,N.J.H.
  4. Proceeding of the Institude of Acoustics v.10(5) The Directivity of Orthotropic Factory Cladding Panels Rowell,M.A.;Oldham,D.J.
  5. Journal of Sound and Vibration v.157 Contribution to the Study of Sound Transmission and Radiation of Corrugated Steel Structures Cordonnier-Cloarec,P.
  6. Journal of Sound and Vibration v.12 Transmission of Reverberant Sound Through a Single leaf Partition Surrounded by an Infinite Rigid Baffle Sewell,E.C.
  7. Noise Control Engineering Journal v.40 Sound Transmission of Corrugated Panels Hansen,C.H.
  8. Inter-Noise'93 v.2 Prediction of the Sound Reduction of Profiled Metal Caldding Windle,R.M.;Lam,Y.W.
  9. Applied Acoustics v.53 no.1-3 Sound Transmission through Double-leaf Corrugated Panel Contruction Ng,C.F.;Zheng,H.
  10. Structure-Bone Sound(2nd ed.) Cremer,L.;Heckl,M.;Ungar,E.E.
  11. ASME AMD v.209 Bending and Twisting Tests for Measurement of the Stiffness of Corrugated Board Luo,S.;Suhling,J.C.;Laufeberg,T.L.
  12. Journal of Engineering for Industry v.87(3) Experimental Determination of the Elastic Behavior of Orthotropic Plates Tsai,S.W.
  13. 대한기계학회 동역학 및 제어부문 하계학술대회논문집 평판형 주름판넬에 대한 등가연속체 평판 모델링 기법 이상윤;이우식
  14. ISO 140-3:1995 Acoustics-Measurement of Sound Insulation in Buildings and of Building Elements
  15. ASTM E413-87 Classification for Rating Sound Insulation
  16. 한국철도학회 춘계학술대회 논문집 철도차량용 주름패널의 음투과특성에 관한 연구 김석현;박정모
  17. 한국소음진동공학회 추계학술대회 논문집 철도차량용 알루미늄 압출재의 투과손실 김석현;박정철;김종년
  18. 고속전철개발사업 2차년도 연차보고서 진동소음해석 및 저감기술개발 이우식