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  • Optimal tracking control with feedforward compensation for offshore steel jacket platforms with active mass damper mechanisms

    Author(s)
    Zhang, Bao-Lin
    Liu, Yu-Jia
    Han, Qing-Long
    Tang, Gong-You
    Griffith University Author(s)
    Han, Qing-Long
    Year published
    2016
    Metadata
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    Abstract
    This paper presents the optimal tracking control methodology for an offshore steel jacket platform subject to external wave force. Based on a dynamic model of an offshore steel jacket platform with an active mass damper mechanism and a linear exogenous system model of the external wave force on the offshore platform, an optimal tracking control scheme with feedforward compensation is proposed to attenuate the wave-induced vibration of the offshore platform. A feedforward and feedback optimal tracking controller (FFOTC) can be obtained by solving an algebraic Riccati equation and a Sylvester equation, respectively. It is ...
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    This paper presents the optimal tracking control methodology for an offshore steel jacket platform subject to external wave force. Based on a dynamic model of an offshore steel jacket platform with an active mass damper mechanism and a linear exogenous system model of the external wave force on the offshore platform, an optimal tracking control scheme with feedforward compensation is proposed to attenuate the wave-induced vibration of the offshore platform. A feedforward and feedback optimal tracking controller (FFOTC) can be obtained by solving an algebraic Riccati equation and a Sylvester equation, respectively. It is demonstrated that the wave-induced vibration amplitudes of the offshore platform under the FFOTC are much smaller than the ones under the feedback optimal tracking controller (FOTC) and the feedforward and feedback optimal controller (FFOC). Furthermore, the required control force under the FFOTC is smaller than the ones under the FOTC and the FFOC.
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    Journal Title
    Journal of Vibration and Control (JVC)
    Volume
    22
    Issue
    3
    DOI
    https://doi.org/10.1177/1077546314532117
    Subject
    Mechanical Engineering not elsewhere classified
    Electrical and Electronic Engineering
    Mechanical Engineering
    Publication URI
    http://hdl.handle.net/10072/172070
    Collection
    • Journal articles

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