Derivation of four-pole parameters for elliptic cylindrical cavity with extended inlet and outlet.

• Nishimura Tsuyoshi

  Kumamoto Institute of Technology

• Usagawa Tsuyoshi

  Foculty of Engineering, Kumamoto University

• Ebata Masanao

  Foculty of Engineering, Kumamoto University

抄録

The estimation of acoustic characteristics based on the one-dimensional model of fourpole parameters matrix for the complex acoustic system is not always in good agreement with the experimental results. The fundamental resonance frequencies are shifted by the effect on the presence of higher order modes of wave propagation. Because of the influence of frequency shift, the estimated acoustic characteristics are different largely from ones of measurement when many elements are connected in series. In this paper, a method to derive the four-pole parameters matrix of the elliptical cylindrical cavity including the characteristics of the connection part of elements is presented. Furthermore, the method is developed in the case of circular cylindrical cavity. The experimental results are compared with the estimated characteristics obtained by the proposed method and those by one-dimensional model is made.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ａｃｏｕｓｔｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ　（Ｅ）

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ａｃｏｕｓｔｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ　（Ｅ） 15 (1), 27-36, 1994

  一般社団法人 日本音響学会

キーワード

• Muffler
• Resonance frequency
• Four-pole parameters
• Particle velocity
• One-dimensional

詳細情報

• CRID: 1390001205088854400
• NII論文ID: 130002028887
• DOI: 10.1250/ast.15.27
• ISSN: 21853509
• ISSN: 03882861
• Web Site: http://www.jstage.jst.go.jp/article/ast1980/15/1/15_1_27/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可