A parametrically excited oscillator involving coupling between inclined cable system and deck of stayed bridges

Abstract : This paper is concerned with the experimental study of the dynamic behaviour of an inclined cable linked to a continuous beam modelling a simplified version of deck and cable of a bridge. External excitation is exerted on the beam. The cable attached to the end of the beam is submitted to a vertical sinusoidal solicitation due to the response of the finite stiffness beam. A guided device located at the end of the beam ensures the excitation with a variation of the horizontal component of the cable tension that introduces a new parametric excitation. Analysis of preliminary experimental results for main and secondary resonances permits us to consider simple modelling with one degree of freedom systems obtained by projection of the continuous three-dimensional model of the cable on adapted Irvine mode. Analytical treatment of these models involving data from the experimental devices shows a correct qualitative agreement between preliminary experiments and theoretical and numerical results.
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  • HAL Id : hal-01851897, version 1
  • OATAO : 3288

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Guilhem Michon, Alain Berlioz, Claude-Henri Lamarque. A parametrically excited oscillator involving coupling between inclined cable system and deck of stayed bridges. Experimental Vibration Analysis for Civil Engineering Structures, Oct 2009, Wroclaw, Poland. pp.0. ⟨hal-01851897⟩

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