Structural Engineering and Mechanics

  • 제23권3호
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  • Pages.263-278
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Solution of the two-dimensional scalar wave equation by the time-domain boundary element method: Lagrange truncation strategy in time integration

  • Carrer, J.A.M. (Programa de Pos-Graduacao em Metodos Numericos em Engenharia, Universidade Federal do Parana) ;
  • Mansur, W.J. (Programa de Engenharia Civil, COPPE/UFRJ, Universidade Federal do Rio de Janeiro)
  • 투고 : 2005.08.24
  • 심사 : 2006.02.21
  • 발행 : 2006.06.20
⟨ 이전 논문 다음 논문 ⟩

초록

This work presents a time-truncation scheme, based on the Lagrange interpolation polynomial, for the solution of the two-dimensional scalar wave problem by the time-domain boundary element method. The aim is to reduce the number of stored matrices, due to the convolution integral performed from the initial time to the current time, and to keep a compromise between computational economy and efficiency and the numerical accuracy. In order to verify the accuracy of the proposed formulation, three examples are presented and discussed at the end of the article.

키워드

참고문헌

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