Paper Title:
Study on Mid-Span Deflection of Beam Bridge under Moving Loads by the Recently Proposed Oscillator with Time-Dependent Stiffness
  Abstract

The smooth-and-discontinue(SD) oscillator with time-dependent stiffness was put forward and founded to study dynamic characteristics of beam bridge under moving load. Mid-span deflection of beam bridge under moving load was described as vibration trace. Proper stiffness model function was elected and study nonlinear dynamic behaviors of mid-span deflection when several vehicles pass through bridge successively. The software MATLAB was used to simulate the model and obtain the bifurcation diagrams with parameter of vehicle speed and Poincare sections of the vehicle-bridge coupled system. The result shows the complicated nonlinear dynamics with periodic motion, quasi-periodic motion phenomena and chaos, the occurrence alternatively among these motions.

  Info
Periodical
Advanced Materials Research (Volumes 179-180)
Edited by
Garry Zhu
Pages
1096-1101
DOI
10.4028/www.scientific.net/AMR.179-180.1096
Citation
R. L. Tian, X. W. Yang, L. F. Ren, "Study on Mid-Span Deflection of Beam Bridge under Moving Loads by the Recently Proposed Oscillator with Time-Dependent Stiffness", Advanced Materials Research, Vols. 179-180, pp. 1096-1101, 2011
Online since
January 2011
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