Analysis of band structure for 2D acoustic phononic structure by BEM and the block SS method

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

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

By its very basis, the block Sakurai-Sugiura (SS) method may be applied to solving nonlinear eigenvalue problem formulated by boundary integral equation. In this paper, the methodology of BEM combined with the block SS method is applied to the computation of band structures of phononic structures for acoustic problems. Since the conventional boundary integral equation yields the real fictitious eigenfrequencies when it is applied to an exterior problem of scatters, Burton-Miller's method is employed to remove the real fictitious eigenfrequencies resulted by the boundary of the scatterers. The application of the method is demonstrated through analyses of band structures of homogenous and composite structures.

Original languageEnglish
Pages (from-to)283-301
Number of pages19
JournalCMES - Computer Modeling in Engineering and Sciences
Volume90
Issue number4
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Band structure
  • BEM
  • Block Sakurai-Sugiura method
  • Eigenfrequencies
  • Phononic structure

ASJC Scopus subject areas

  • Software
  • Modelling and Simulation
  • Computer Science Applications

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