[en] This paper reports the procedure followed by the 'LTAS-Vibrations et Identification des Structures' research group to generate a low-order finite element (FE) model of the GARTEUR SM-AG19 structure. The model is made of beam elements, local inertia and rigid body elements. The philosophy of the updating method is first based on the correlation of the experimental data with the results of the FE model and on the localisation of errors in the model. Updating parameters are then selected using eigenvalue sensitivity and model error localisation analyses. After updating, the quality of the FE model is assessed in terms of accuracy of the response prediction to structural modifications. (C) 2003 Elsevier Science Ltd. All rights reserved.
Disciplines :
Mechanical engineering
Author, co-author :
Thonon, C.
Golinval, Jean-Claude ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Language :
English
Title :
Results obtained by minimising natural frequency and mac-value errors of a beam model
Publication date :
January 2003
Journal title :
Mechanical Systems and Signal Processing
ISSN :
0888-3270
eISSN :
1096-1216
Publisher :
Academic Press Ltd Elsevier Science Ltd, London, United Kingdom
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Bibliography
P. COLLIGNON and J. C. GOLINVAL 1996 2nd International Conference in Structural Dynamics Modelling; Test, Analysis, Correlation & Updating, Proceedings of the DTA/NAFEMS Conference, Lake Windermere, Cumbria, U.K., 3-5 July 1996, 307-317. Finite element model updating and failure detection based on constitutive equation errors.
R. PASCUAL 1999 Model based structural damage assessment using vibration measurements. Ph. D. Thesis, University of Liège, Belgium.
M. DEGENER and M. HERMES 1996 Ground Vibration Test and Finite Element Analysis of the GARTEUR SM-AG19 Testbed. Deutsche Forschungsanstalt für Luft- und Raumfahrt e. V., Institut für Aeroelastik (23200), October 1996.
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