Original title:
Matrix-free formulation fo the stochastic Newmark method
Translated title:
Bezmaticová formulace stochastické Newmarkovy metody
Authors:
Fischer, Cyril Document type: Papers Conference/Event: Programs and Algorithms of Numerical Mathematics 12, Dolní Maxov (CZ), 2004-06-06 / 2004-06-11
Year:
2004
Language:
eng Abstract:
[eng][cze] A response of an arbitrary discretized system to the random movement has been solved in probabilistic terms. The excitation has been defined as a combination of the time modulated band limited stationary random processes approximating the evolutionary power spectra of a true seismic record. The solution is based either on the modified version of the stochastic Newmark method or on the spectral differential decomposition of the excitation. Special attention has been paid to the applicability of the methods to the sparse problems, especially to their matrix-free formulation.Práce popisuje pravděpodobnostní výpočet chování diskretizované soustavy podrobené náhodnému namázání, popsanému pomocí součtu úzkopásmových nestacionárních procesů. Zvláštní pozornost je věnována použitelnosti postupu na rozsáhlé sustavy.
Keywords:
evolutionary spectral density; random movement; stochastic Newmark method Project no.: CEZ:AV0Z2071913 (CEP), GP103/03/P080 (CEP) Funding provider: GA ČR Host item entry: Programs and Algorithms of Numerical Mathematics 12, ISBN 80-85823-54-3
Institution: Institute of Theoretical and Applied Mechanics AS ČR
(web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0119031