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Rational Approximation of Dynamic Stiffness Matrices or Time–Domain Analysis of Unbounded Media
Author(s) -
Trinks C.,
Ruge P.,
Witte S.
Publication year - 2002
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/1617-7061(200203)1:1<234::aid-pamm234>3.0.co;2-j
Subject(s) - representation (politics) , time domain , displacement (psychology) , stiffness matrix , domain (mathematical analysis) , matrix (chemical analysis) , stiffness , rational function , mathematics , discrete time and continuous time , domain decomposition methods , function (biology) , mathematical analysis , computer science , mathematical optimization , structural engineering , engineering , materials science , finite element method , psychology , statistics , evolutionary biology , politics , political science , law , composite material , computer vision , biology , psychotherapist
For soil–structure interaction problems interpolating discrete values of the dynamic stiffness matrix by rational function is of advantage. An overall time–domain representation of the force–displacement relationship is achieved following successive decomposition algorithm. Thus, transient responses can be calculated in the time–domain, even for MDOF problems.