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A model‐adaptive coupling strategy of non‐linear and model‐reduced linear subsystems
Author(s) -
Rickelt Christian,
Reese Stefanie
Publication year - 2005
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200510196
Subject(s) - discretization , linear model , coupling (piping) , modal , reduction (mathematics) , computer science , linear system , mathematics , control theory (sociology) , engineering , mathematical analysis , mechanical engineering , artificial intelligence , materials science , geometry , control (management) , machine learning , polymer chemistry
This article introduces a new three‐level discretisation strategy in which the entire structure is divided into subsystems according to the required modelling accuracy(continuum, structural and substituted model level). This note especially focuses on the transition between the structural and the substituted model level. The principle idea is to separate the structure strictly into linear and non‐linear substructures by the concept of coupling forces. Additionally the linear parts are reduced by modal reduction. The method is verified by a transient analysis of a bridge arch having regard to the evolution of damage. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)