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Nonlinear Modelling and Identification of a Small-Scale Bridge

[+] Author Affiliations
José L. Zapico, María P. González-Martínez, Marta García-Diéguez

Universidad de Oviedo, Gijón, Spain

David H. Bassir

Institute of FEMTO-ST, Besançon, France

Paper No. ESDA2008-59553, pp. 779-784; 6 pages
doi:10.1115/ESDA2008-59553
From:
  • ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
  • Volume 2: Automotive Systems; Bioengineering and Biomedical Technology; Computational Mechanics; Controls; Dynamical Systems
  • Haifa, Israel, July 7–9, 2008
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4836-4 | eISBN: 0-7918-3827-7
  • Copyright © 2008 by ASME

abstract

The dynamic modelling and identification of a small-scale bridge is addressed in this paper. Two finite element models with linear elastic stiffness and different damping modelling has been tried. They correspond to a linear viscous damping and a nonlinear elasto-slip one. Both models were fitted to the available experimental data by a novel adaptive sampling technique that was repeated several times. In all the runs the technique yielded consistent results, which confirms its robustness. The elasto-slip model gave excellent fitting to the experimental data, while the results of the linear viscous one were poor.

Copyright © 2008 by ASME
Topics: Modeling

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