Premium
Efficient time truncation in two‐dimensional bem analysis of transient wave propagation problems
Author(s) -
Mansur W. J.,
DelimaSilva W.
Publication year - 1992
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290210104
Subject(s) - truncation (statistics) , truncation error , transient (computer programming) , boundary (topology) , boundary element method , algorithm , computer science , finite element method , mathematics , mathematical optimization , mathematical analysis , engineering , structural engineering , statistics , operating system
An efficient time truncation algorithm for transient two‐dimensional wave propagation analysis by the boundary element method is proposed. First the complete (without any truncation) formulation is reviewed and subsequently time truncation concepts are discussed. Three applications are presented, where the efficiency of complete and truncated algorithms is compared. The most important conclusions inferred from the numerical analyses are: (i) time truncation errors can be controlled and made as small as required and (ii) time truncation algorithms lead to considerable savings in both CPU time and storage area.