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Automatic masters for eigenvalue economization
Author(s) -
Henshell R. D.,
Ong J. H.
Publication year - 1974
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.4290030408
Subject(s) - eigenvalues and eigenvectors , finite element method , statement (logic) , mathematics , computer science , mathematical optimization , algorithm , engineering , structural engineering , physics , quantum mechanics , political science , law
In dynamic analyses using the finite element method very large matrices are derived. The size of the matrices is usually reduced using an eigenvalue economization method. This paper describes an automatic technique for selecting the optimum variables to be kept as masters using the economization method. Some examples are presented and these lead to an empirical statement about expected accuracy.