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http://dx.doi.org/10.3795/KSME-A.2011.35.5.567

Sound-Insulation Design of Aluminum Extruded Panel in Next-Generation High-Speed Train  

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.)
Kim, Jeong-Tae (Dept. of Mechanical and System Design Engineering, Hongik Univ.)
Song, Dal-Ho (Dept. of Railway Vehicle System Engineering, Woosong Univ)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.5, 2011 , pp. 567-574 More about this Journal
Abstract
Aluminum extruded panels are widely used instead of corrugated steel panels for weight reduction in high-speed trains. Of the layers in the train body, it makes the largest contribution to the sound insulation. However, compared with that of a flat panel with the same weight, the TL of the aluminum extruded panel is remarkably lower in the local resonance frequency band. We study aluminum extruded panels for next-generation 400-km/h trains. We investigate the problem of sound insulation and propose a practical method to improve the sound-insulation performance. The local resonance frequency region is increased by a modification of the core structure, and urethane foam is placed in the core. The effect on the sound insulation is verified by experiments. Finally, the improvement for the entire sound-transmission loss is estimated for the layered floor panels of express trains.
Keywords
Aluminum Extruded Panel; Local Resonance; Sound Transmission Loss;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 0
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