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Sound Insulation Performance of Honeycomb Composite Panel for a Tilting Train

틸팅 열차용 허니콤 복합 적층재의 차음성능

  • Kim, Seock-Hyun (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.) ;
  • Seo, Tae-Gun (Dept. of Mechanical and Mechatronics Engineering, Kangwon Nat'l Univ.)
  • 김석현 (강원대학교 기계메카트로닉스공학과) ;
  • 서태건 (강원대학교 기계메카트로닉스공학과)
  • Received : 2010.08.30
  • Accepted : 2010.09.13
  • Published : 2010.12.01

Abstract

In Korean tilting trains, honeycomb composite panels are used for high speed and light weight. The side wall of a tilting train consists of an aluminum honeycomb coated with carbon-fiber-reinforced epoxy skin and a nomex honeycomb panel as the main structure, with glass wool inserted between the panels. In this study, based on ASTM E2249-02, we measure the intensity sound transmission loss (TL) of the honeycomb composite panels. Using mass law deviation (MLD), we estimate the sound insulation performance of the honeycomb composite panels in terms of their weight and explore the feasibility of substituting a conventional corrugated steel panel. The transmission-loss data of the honeycomb composite panels obtained in the study will be used to establish noise-reduction measures for train compartments.

Keywords

Honeycomb Composite Panels;Sound Transmission Loss;Mass Law Deviation

References

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