Analysis of infinite/finite unidirectional elastic phononic structures by BEM

H. F. Gao, T. Matsumoto, T. Takahashi, H. Isakari

研究成果: Conference contribution

抄録

The transmission of elastic waves in infinite/finite unidirectional phononic crystals is investigated by using the boundary element method (BEM). For the infinite periodic structure, we use BEM to formulate a Bloch's eigenvalue problem which has a nonlinear property caused by the Hankel functions in the fundamental solution. This nonlinear eigenvalue problem is solved by employing a contour integral method and band gaps are found in the dispersion curves. For the finite structure, a certain number of layers for cells are given to connect the input and output domains. The numerical simulation shows that the finite structure also presents a frequency banded nature which coincides with the band gaps of the infinite structure.

本文言語English
ホスト出版物のタイトルBoundary Elements and other Mesh Reduction Methods XXXV
編集者Carlos A. Brebbia, A.H-D. Cheng
出版社WITPress
ページ155-163
ページ数9
ISBN(電子版)9781845647247
ISBN(印刷版)9781845647247
DOI
出版ステータスPublished - 2013
外部発表はい
イベント35th International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2013 - New Forest, United Kingdom
継続期間: 2013 6月 112013 6月 13

出版物シリーズ

名前WIT Transactions on Modelling and Simulation
54
ISSN(印刷版)1743-355X

Conference

Conference35th International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2013
国/地域United Kingdom
CityNew Forest
Period13/6/1113/6/13

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 計算数学

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