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A 3‐level discretisation strategy using substructuring
Author(s) -
Rickelt Christian,
Schwarze Marco,
Reese Stefanie
Publication year - 2004
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200410083
Subject(s) - discretization , substructure , modal , finite element method , mathematics , computer science , reduction (mathematics) , algorithm , structural engineering , engineering , mathematical analysis , geometry , materials science , composite material
This contribution deals with a new three‐level discretisation strategy which enables to discretise a structure according to the required modelling accuracy. Correspondingly the structure is separated into a continuum, a structural and a black box model level. This note especially focuses on the transitions between continuum‐structure and structure‐substitute model. The first one is realised by means of a model adaptive concept based on the innovative finite element technology of the Q1SP family. The latter is carried out by an enhanced modal reduction method which is combined with a novel substructure technique. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)