Estimating relative eigenvalue errors in the Craig-Bampton method

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In this study, we propose an accurate error estimator for the Craig-Bampton (CB) method, which is a widely used component mode synthesis (CMS) method. The proposed error estimator can precisely predict relative eigenvalue errors in finite element models reduced by the CB method. To develop the error estimator, we propose an enhanced transformation matrix for the CB method and, using the transformation matrix, the error estimator is derived from the global (original) eigenvalue problem. In this paper, we demonstrate the robustness of the proposed error estimator through various numerical examples.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2014-07
Language
English
Article Type
Article
Keywords

COMPONENT MODE SYNTHESIS; SHELL FINITE-ELEMENT; DYNAMIC ANALYSIS; INTERPOLATION

Citation

COMPUTERS & STRUCTURES, v.139, pp.54 - 64

ISSN
0045-7949
DOI
10.1016/j.compstruc.2014.04.008
URI
http://hdl.handle.net/10203/189396
Appears in Collection
ME-Journal Papers(저널논문)
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