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类型桁架式Spar平台在波浪中的运动预报与实验测量.pdf

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    关 键  词:
    桁架 Spar 平台 波浪 中的 运动 预报 实验 测量
    资源描述:
    第20卷第3期
    船舶力学
    Vol20 No.3
    2016年3月
    Journal of Ship Mechanic
    Mar.2016
    Article ID:1007-7294(2016)03-0288-18
    Numerical Prediction and Experimental Measurement on Truss
    Spar Motion and Mooring Tension in Regular Waves
    XU Guo-chun, MA Qing-wei, DUAN Wen-yang M Shan
    ( College of Shipbuilding Engineering. Harbin Engineering University, Hurin 150001, China; 2. School of Engineerin
    and Mathematical Sciences, City University Indon, Northampton Square, London E1 VOHB, UK
    Abstract: This paper presents a numerical and experimental study on the Truss Spar motions in reg-
    ular waves. For the numerical calculation, a slender formulation is employed to evaluate wave loads
    on hard tank and truss structures of the Spar platform, and the Spar hull and its mooring lines are cou
    pled together by their interaction forces and motions. The Spar motions are solved by a set of non
    linear equations of a rigid body. A model test was carried out in the wave tank of HEU(Harbin En
    gineering University During experiments, an optical measurement system is used to measure mo
    tions of the Truss Spar model in waves, and tension transducers are employed to record tension at the
    end of mooring lines. The numerical prediction results are compared with corresponding model test
    data. Satisfactory agreement is achieved for all the cases considered
    Key words: Truss Spar; slender formulation; motions; model test; mooring loads; waves
    CLC number: U6617
    Document code
    doi:10.3969/issn.1007-7294.2016.03.006
    0 ntroduction
    Truss Spar platforms have been utilized in deep water oil exploitation since about 2002
    Generally, it is regarded as the second generation of Spar platforms, evolved from the Classic
    Spar. A typical Truss Spar is composed of three parts. The upper hard tank is a cylindrical
    hull similar to a Classic Spar. The middle truss section includes a number of slender braces
    and square heave plates. At the lower end of the truss section, there is a soft tank, containing
    solid ballast to keep stability and adjust draft of the whole platform. Now, some alternatives o
    Spar have been developed from the original Truss Spar, such as Ct-sparel
    Spar 5, and G-spar. Not only in the industry for oil and gas production, similar structures
    similar to Truss Spar are often adopted in the other offshore engineering field, for instance.
    Mecabe Wave energy Pump.l and SPAR-TYPE floating wind turbine. Compared to other
    floating structures, the Truss Spar has a number of distinctive advantages, such as less con
    structing costs, moderate heave motion due to heave plates, less susceptible to vortex-induced
    motion, and so on
    Received date. 2015-11-04
    Biography: XU Guo-chun(1985-), male, Ph D. candidate of Harbin Engineering University, xuguochun@hrbeuedu cn
    MA Qing-wei(1955-), male, professor of Harbin Engineering University City University of London
    DUA N Wen-yang(1967-), male, professor/tutor of Harbin Engineering University
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