論文

査読有り
2011年

流体-固体連成問題のための演算子積分時間領域境界要素法および空気超音波シミュレーションへの応用

土木学会論文集A2(応用力学)
  • 斎藤 隆泰
  • ,
  • 丸山 泰蔵
  • ,
  • 廣瀬 壮一

67
2
開始ページ
I_145
終了ページ
I_152
記述言語
日本語
掲載種別
DOI
10.2208/jscejam.67.I_145
出版者・発行元
公益社団法人 土木学会

This paper presents a convolution quadrature time-domain boundary element method for fluid-elastic half space. Application of convolution quadrature method (CQM) to time-domain boundary element method (BEM), which is called CQ-BEM, can help improve numerical stability of time-stepping procedure. However, the conventional CQ-BEM for fluid-elastic half space has two disadvantages. First, it requires much memory to evaluate retarded potentials of time-stepping procedures. Second, it is difficult to couple both boundary integral equations for fluid and elastic half space with time-domain boundary conditions on fluid-elastic interface directly. The formulation presented herewith improves these disadvantages by transforming boundary values in time-domain into Fourier-domain. As numerical examples, air-coupled ultrasonic simulation is shown to validate the presented method.

リンク情報
DOI
https://doi.org/10.2208/jscejam.67.I_145
CiNii Articles
http://ci.nii.ac.jp/naid/130004557152