Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23212
Title: Model error correction from truncated modal flexibility sensitivity and generic parameters. II : Experimental verification
Authors: Wu, D
Law, SS
Keywords: Damage detection
Generic element
Modal flexibility
Modal test
Model error
Model updating
Issue Date: 2004
Publisher: Academic Press
Source: Mechanical systems and signal processing, 2004, v. 18, no. 6, p. 1401-1419 How to cite?
Journal: Mechanical systems and signal processing 
Abstract: This paper reports on the experimental verification of the truncated modal flexibility sensitivity based model updating method proposed in the companion paper (Wu and Law, Mechanical System and Signal Processing, doi: 10.1016/S0888-3270 (03) 00094-3) with real measurements on a three-dimensional cantilever frame structure in the laboratory. Two schemes of model error correction are presented to improve the initial inaccurate finite-element model of the structure. The first procedure updates the initial model in two stages. The systematic model errors are firstly updated using macrogeneric parameters. The local errors are then improved using elemental eigenparameters. The second procedure improves both the systematic and local errors without a measured baseline reference simultaneously. The first procedure can differentiate the types of errors in the structure while the latter procedure removes the usual requirement in most existing model based updating methods that an accurate finite -element model should be used as reference.
URI: http://hdl.handle.net/10397/23212
ISSN: 0888-3270
EISSN: 1096-1216
DOI: 10.1016/S0888-3270(03)00095-5
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