Countermeasures for Noise from the Lower Car Body with Sound Absorber

In this article, the authors discuss methods of noise abatement measures using sound-absorbing materials on the lower car body of Shinkansen high speed trains. Acoustic tests were conducted using a full-scale model to determine the optimum location on the lower body to which the sound absorption should be applied. Tests were also conducted to determine the efficacies of different materials in terms of sound absorption. The three types of sound absorbing material were as follows: 50mm thick aluminum fiber with resonant structure, 35mm thick punched plate with porous materials and honeycomb, and a 50mm thick aluminum fiber with back air layer structure. Researchers found that the second option worked well enough in the scale models to be implemented in full size trains at thicknesses of 35 and 50mm widths.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/51815943
• Authors:
  • Ido, Atsushi
  • Kurita, Takeshi
  • Horiuchi, Masahiko
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos;
• Pagination: pp 23-26
• Serial:
  • JR East Technical Review
  • Issue Number: 8
  • Publisher: East Japan Railway Culture Foundation
  • ISSN: 1347-8907
  • Serial URL: https://www.jreast.co.jp/e/development/tech/

Subject/Index Terms

• TRT Terms: High speed rail; Noise control; Passenger cars; Sound absorption
• Subject Areas: Environment; Railroads;

Filing Info

• Accession Number: 01037511
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Nov 28 2006 11:32AM