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Conceptual design of a deep draft semi-submersible platform with a moveable heave-plate

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Abstract

Based on the principle of turned mass damper (TMD) systems, the conceptual design of semi-submersible platform with a moveable heave-plate (MHS) has been put forward. The heave motion response amplitude operator (RAO) and viscous damping of the MHS platform are calculated by iteration, and the coupling stiffness between the MHS hull and the heave-plate is optimized to decrease the maximum heave motion response of the MHS hull under 10-year survival conditions in the South China Sea. The numerical results indicate that the heave motion RAO of the MHS hull can be decreased in the range of predominant wave frequencies, which may provide some reference to the heave motion control of offshore platforms.

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Authors and Affiliations

  1. Shipbuilding Technology Research Institute, Shanghai, 200032, P. R. China

    Hang Zhu

  2. School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, P. R. China

    Hang Zhu & Jinping Ou

  3. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, 116023, P. R. China

    Jinping Ou & Gangjun Zhai

Authors
  1. Hang Zhu
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  2. Jinping Ou
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  3. Gangjun Zhai
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Correspondence to Hang Zhu.

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Zhu, H., Ou, J. & Zhai, G. Conceptual design of a deep draft semi-submersible platform with a moveable heave-plate. J. Ocean Univ. China 11, 7–12 (2012). https://doi.org/10.1007/s11802-012-1871-4

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  • DOI: https://doi.org/10.1007/s11802-012-1871-4

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