Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
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Sound Insulation Performance of the Foamed Aluminum Sandwich Panel for a Railway Vehicle

발포 알루미늄 샌드위치 패널의 차음성능

  • Ahn, Yong-Chan (Unison Engineering Co., Ltd., Deamyeong Valleyon Knowledge Industry Center) ;
  • Lee, Joong-Hyuk (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Byeon, Jun-Ho (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Kim, Seock-Hyun (Department of Mechatronics Engineering, Kangwon National University)
  • Received : 2017.02.21
  • Accepted : 2017.08.21
  • Published : 2017.08.31
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Abstract

Speeding up of railway vehicles requires weight reduction of the vehicle body. However, when the vehicle body is lighter, the sound insulation performance for blocking the noise from the outside is reduced. Aluminum is an important material used in the bodywork of transportation vehicles such as railway vehicles, aircraft, and automobiles. In this study, the bending stiffness and sound insulation performance of foamed aluminum with sandwich structure are investigated experimentally. The transmission loss is measured in accordance with the international standard ASTM E 2249-02. The mass-law deviation is used to evaluate the sound insulation performance per weight. In order to examine the applicability of the foamed aluminum sandwich panel to railway vehicles, the analysis of bending stiffness and an experimental review are carried out at the same time.

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References

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