Passive Control of Impulsive Noise from an Open End of a Circular Tube

• AOKI Toshiyuki

  "Graduate School of Engineering Sciences, Kyushu University"

• NAKAO Shinichiro

  "Graduate School of Engineering Sciences, Kyushu University"

• KONDOH Nobuaki

  "Graduate School of Engineering Sciences, Kyushu University"

• MATSUO Kazuyasu

  "Graduate School of Engineering Sciences, Kyushu University"

Bibliographic Information

Other Title

• A122 円管開口端における衝撃的騒音のパッシブコントロール
• エンカン カイコウタン ニ オケル ショウゲキテキ ソウオン ノ パッシブ コ

Abstract

When a high-speed train enters a tunnel, a compression wave is generated ahead of the train and propagates along the tunnel. This wave subsequently emerges from the exit portal of the tunnel as an impulsive wave which may cause noise problems in the surrounding area. The objective of this paper is to show the optimum silencer to reduce an impulsive noise. The effects of the annular boxes at the circular tube exit on the impulsive noise were investigated numerically. As a result, the effects of geometry of passive silencer and the noise reduction rate have been clarified, and then a suitable choice of design factors for exit anular box has been suggested.

Journal

• Journal of the Visualization Society of Japan

  Journal of the Visualization Society of Japan 17 (Supplement2), 27-30, 1997

  The Visualization Society of Japan

Details

• CRID: 1390282679596918016
• NII Article ID: 10002674986
• NII Book ID: AN10374478
• DOI: 10.3154/jvs.17.supplement2_27
• ISSN: 1884037X
• ISSN: 09164731
• NDL BIB ID: 4302618
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4302618
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed