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Dynamic Parameters Identification of Structural Laminated Glass

[+] Author Affiliations
Francesco Clementi, Laura Consolini, Stefano Lenci

Polytechnic University of Marche, Ancona, Italy

Paper No. IMECE2015-50867, pp. V04BT04A034; 7 pages
doi:10.1115/IMECE2015-50867
From:
  • ASME 2015 International Mechanical Engineering Congress and Exposition
  • Volume 4B: Dynamics, Vibration, and Control
  • Houston, Texas, USA, November 13–19, 2015
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5740-3
  • Copyright © 2015 by ASME

abstract

In this work, we address experimentally the determination of the dynamical properties, in particular natural frequencies and damping factors, of laminated structural glass. Various specimens, coming from different productions and manufactures, are investigated. Damped free vibrations experiments are performed, where the excitation is provided by an instrumented hammer. The boundary conditions are free-free (the specimens lay on a very flexible sponge substrate). The dynamical characteristics are determined by last squares fitting of time histories, a technique that is very simple, fast and provides very good results. Finally, two theoretical models (a two-layer beam model and a 2D finite element model) are employed to interpret the experimental results.

Copyright © 2015 by ASME

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