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Experimental study on hybrid control of multimodal cable vibrations

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Abstract

The effectiveness of a hybrid control policy in mitigating the linear and non-linear multimodal cable vibrations is investigated by means of a numerical analysis and a campaign of laboratory tests. The proposed control method is a hybrid solution combining wrapped shape memory alloy wires and an open-loop actuation. By operating in this way, a robust and economical control strategy is obtained which overcomes the damper/actuator localization and the state-tracking difficulties that significantly impair the overall control effectiveness of most of the control solutions already investigated in the literature. The proposed approach has shown, in a separate study, promising vibration mitigation capabilities when the motion was essentially dominated by the first in-plane mode. Here, the capability of the hybrid control policy in mitigating also the nonlinear vibrations of the second in-plane mode is under specific investigation.

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Authors and Affiliations

  1. Department of Structural Mechanics, University of Pavia, Via Ferrata 1, 27100, Pavia, Italy

    Lucia Faravelli & Clemente Fuggini

  2. Department of Civil and Environmental Engineering, University of Perugia, Via G. Duranti 93, 06125, Perugia, Italy

    Filippo Ubertini

Authors
  1. Lucia Faravelli
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  2. Clemente Fuggini
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  3. Filippo Ubertini
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Correspondence to Filippo Ubertini.

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Faravelli, L., Fuggini, C. & Ubertini, F. Experimental study on hybrid control of multimodal cable vibrations. Meccanica 46, 1073–1084 (2011). https://doi.org/10.1007/s11012-010-9364-2

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  • DOI: https://doi.org/10.1007/s11012-010-9364-2

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