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  • Delayed non-fragile H∞ control for offshore steel jacket platforms

    Author(s)
    Zhang, Bao-Lin
    Huang, Zuo-Wu
    Han, Qing-Long
    Griffith University Author(s)
    Han, Qing-Long
    Year published
    2015
    Metadata
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    Abstract
    This paper is concerned with a delayed non-fragile H∞ control scheme for an offshore steel jacket platform subject to self-excited nonlinear hydrodynamic force and external disturbance. By intentionally introducing a time-delay into the control channel, a delayed robust non-fragile H∞ controller is designed to reduce the vibration amplitudes of the offshore platform. The positive effects of the time delays on the non-fragile H∞ control for the offshore platform are investigated. It is shown through simulation results that (i) the proposed delayed non-fragile H∞ controller is effective to attenuate the vibration of the offshore ...
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    This paper is concerned with a delayed non-fragile H∞ control scheme for an offshore steel jacket platform subject to self-excited nonlinear hydrodynamic force and external disturbance. By intentionally introducing a time-delay into the control channel, a delayed robust non-fragile H∞ controller is designed to reduce the vibration amplitudes of the offshore platform. The positive effects of the time delays on the non-fragile H∞ control for the offshore platform are investigated. It is shown through simulation results that (i) the proposed delayed non-fragile H∞ controller is effective to attenuate the vibration of the offshore platform; (ii) the control force required by the delayed non-fragile H∞ controller is smaller than that required by the delay-free non-fragile H∞ controller; (iii) the time delays can be used to improve the control performance of the offshore platform.
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    Journal Title
    Journal of Vibration and Control (JVC)
    Volume
    21
    Issue
    5
    DOI
    https://doi.org/10.1177/1077546313488159
    Subject
    Applied Mathematics not elsewhere classified
    Electrical and Electronic Engineering
    Mechanical Engineering
    Publication URI
    http://hdl.handle.net/10072/172071
    Collection
    • Journal articles

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