2010
DOI: 10.1002/nme.2983
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Updating the Craig–Bampton reduction basis for efficient structural reanalysis

Abstract: SUMMARYA Combined Approximation (CA) based reanalysis technique is proposed for updating the static modes in a reduction basis which can be used for sizing optimization problems. Although the proposed technique is utilized under the framework of the Craig-Bampton (CB) method, it can be employed with any condensation procedure that involves the computation of the static modes. An automated update scheme is also presented that switches the proposed technique with the exact analysis when the computational efficie… Show more

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Cited by 4 publications
(8 citation statements)
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“…The computational efficiency of the CA approach depends on the properties of the FE models of the components (Akçay Perdahcıoglu et al 2010). More specifically, the ratio between the size of the internal stiffness matrix and the number of the constraint modes is the driving factor.…”
Section: Resultsmentioning
confidence: 99%
See 4 more Smart Citations
“…The computational efficiency of the CA approach depends on the properties of the FE models of the components (Akçay Perdahcıoglu et al 2010). More specifically, the ratio between the size of the internal stiffness matrix and the number of the constraint modes is the driving factor.…”
Section: Resultsmentioning
confidence: 99%
“…For updating the initial constraint mode set of a substructure, a method based on the Combined Approximations (CA) approach is utilized (Akçay Perdahcıoglu et al 2010). In this method, the residual constraint mode matrix, ib , is approximated using the conditioned binomial series expansion.…”
Section: Updating the Constraint Modesmentioning
confidence: 99%
See 3 more Smart Citations