413 解析解による音場の近似解析の理論的背景に関する考察

• 浦田 喜彦

  静理工大

書誌事項

タイトル別名

• 413 On Theoretical Background of the Approximate Method of Acoustic Fields Analysis by Analytic Solutions

抄録

The author has investigated an approximate method for numeric simulation of acoustic fields of the two- and three-dimensional domains with arbitrary shapes. In the method, the collocation method is applied to analytic solutions represented in the polar coordinates. Results obtained by this method are very accurate in spite of simplicity of the method. The theoretical validity of the method, however, has not been explained sufficiently so far. In this paper, it is shown that the natural modes of some domains can be resolved into plane waves propagating in all directions. Some properties of the natural modes can be explained by the propagating direction spectra. And then a consideration is made about the case in which the collocation method brings ill results.

収録刊行物

• Dynamics & Design Conference

  Dynamics & Design Conference 2003 (0), _413-1_-_413-5_, 2003

  一般社団法人 日本機械学会

キーワード

• Acoustic fields
• Natural mode
• Natural frequency
• Plane wave
• Propagating direction spectrum
• Collocation method

詳細情報

• CRID: 1390001205890118144
• NII論文ID: 110006656730
• DOI: 10.1299/jsmedmc.2003._413-1_
• ISSN: 24242993
• Web Site: https://www.jstage.jst.go.jp/article/jsmedmc/2003/0/2003__413-1_/_pdf
• 本文言語コード: ja
• 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