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Experimental Investigation of the Nonlinear Response of a Hanging Cable. Part II: Global Analysis

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Abstract

The nonlinear dynamics of the same experimental model of an internally resonant hanging elastic cable considered in Part I [1] are addressed here from the point of view of the ‘global’ system behaviour in the control parameter space. Synthetic results of systematic response measurements, made at different amplitudes of the support motion in frequency ranges including meaningful external resonance conditions, are reported and discussed. Attention is devoted to the detection of the most robust classes of motion. Quite complicated overall pictures of regular response regions with variable contributions from different planar and nonplanar cable modes are observed, as well as several regions of quasiperiodic and chaotic responses. Sample quantitative characterizations of nonregular motions are presented. Some experimental results are also observed against the background of the nonlinear dynamic phenomena exhibited by a theoretical model of a continuous cable with four-degrees-of-freedom.

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Authors and Affiliations

  1. Dipartimento di Ingegneria delle Strutture, Acque e Terreno, Università dell'Aquila, 67040, Monteluco Roio, L'Aquila, Italy

    F. Benedettini

  2. Dipartimento di Ingegneria Strutturale e Geotecnica, Università di Roma “La Sapienza”, via A. Gramsci 53, 00197, Roma, Italy

    G. Rega

Authors
  1. F. Benedettini
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  2. G. Rega
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Benedettini, F., Rega, G. Experimental Investigation of the Nonlinear Response of a Hanging Cable. Part II: Global Analysis. Nonlinear Dynamics 14, 119–138 (1997). https://doi.org/10.1023/A:1008259120942

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  • DOI: https://doi.org/10.1023/A:1008259120942

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