Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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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
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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.

한국형 틸팅열차에는 고속화와 경량화를 위하여 허니콤 복합재가 처음으로 사용된다. 틸팅열차의 측벽은 탄소섬유강화 에폭시층과 접착된 알미늄 허니콤 및 노멕스 허니콤 판재를 주 요소로, 유리면이 적층된 복합 적층재이다. 본 연구에서는 ASTM E2249-02에 근거하여 알미늄 및 노멕스 허니콤 복합 적층재의 층별 인텐시티 투과손실을 측정한다. 질량법칙편차를 이용하여 허니콤 복합재의 중량 대비 차음 성능을 평가하고, 차음 측면에서 알미늄 허니콤 복합재가 기존의 주름강판을 대체할 수 있는지의 가능성을 검토한다. 본 연구를 통하여 얻은 허니콤 복합 적층재의 차음성능 자료는 향후 틸팅 열차의 실내 소음 대책 수립에 활용될 것이다.

Keywords

References

  1. http://www.hanvit200.com/
  2. Foo, C. C., Chai, G. B. and Seah, L. K., 2007, “Mechanical Property of Nomex Material and Nomex Honeycomb Structure," Composite Structures, Vol. 80, pp. 588-594. https://doi.org/10.1016/j.compstruct.2006.07.010
  3. Kim, J. S. and et al., 2006, “Structural Characteristics of a Hybrid Composite Car body of Korean Tilting Train by Weight Load," Journal of the Korean Society for Railway, Vol. 9(3), pp. 251-256.
  4. Kurtze, G. and Watters, B. G., 1959, “New Wall Design for High Transmission Loss or High Damping," J. Acoust. Soc. Am. Vol. 31, No. 6, pp. 739-748. https://doi.org/10.1121/1.1907780
  5. Davis, E. B., 1999, "Designing Honeycomb Panels for Noise Control," J. AIAA-99-1917.
  6. Rajaram, S., Wang, T. and Nutt, S., 2006, "Sound Transmission Loss of Honeycomb Sandwich Panels," Noise Control Engineering Journal, Vol. 54, No. 2, pp. 106-115. https://doi.org/10.3397/1.2888387
  7. ASTM E 2249 - 02 : 2003, American Standards for Testing and Materials; Standard Test Method for Laboratory Measurement of Airborne Transmission Loss of Building Partitions and Elements Using Sound Intensity, American Standard Association.
  8. Beranek, L. L. and Ver, I. L., 1992, Noise and Vibration Control Engineering, John Wiley and Sons, INC., pp. 281-291.
  9. Kim, S. H., Lee, H., Kim, J. and Kim, J., 2010, "Sound Insulation Design of the Corrugated Steel Panel Considering Local Resonance," Trans. of KSNVE., Vol. 20, No. 7, pp. 672-676. https://doi.org/10.5050/KSNVE.2010.20.7.672
  10. Kim, S. H., Jang, H. and Kim, J., 2001, "Characteristics of Local Vibration Modes of the Aluminum Extruded Panels for Rail Road Vehicles," Journal of the Korean Society for Railway, Vol. 4, No. 3, pp. 87-93.