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Application of the Nonlinear Energy Sink Systems in Vibration Suppression of Railway Bridges

[+] Author Affiliations
Davood Younesian, Amir Nankali, M. Emad Motieyan

Iran University of Science and Technology, Tehran, Iran

Paper No. ESDA2010-24629, pp. 227-231; 5 pages
doi:10.1115/ESDA2010-24629
From:
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 5
  • Istanbul, Turkey, July 12–14, 2010
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4919-4 | eISBN: 978-0-7918-3877-8
  • Copyright © 2010 by ASME

abstract

Vibration suppression of railway bridges using nonlinear energy sink systems (NES) is studied in this paper. Train is modeled as a set of successive moving loads traveling on an Euler-Bernoulli beam. Energy sink as a new passive control strategy is employed as the suppression system. Galerkin method here is adopted as the solution technique. Within a parametric study, series of numerical simulations are carried out and performance of the passive control system is investigated. It is numerically found that an appropriately designed NES can passively reduce the displacement of the bridge up to 43%.

Copyright © 2010 by ASME

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