Economy and ice-resistance are two factors that must be considered in the design of offshore oil platforms in the Bohai Gulf. This paper focuses on the optimal design of ice-resistant offshore jacket platforms in the Bohai Gulf in consideration of fatigue life of tubular joints, with the minimum initial weight and satisfying dynamic properties. An efficient fatigue analysis procedure based on spectral analysis is proposed, in which a hybrid finite element model is adopted to simulate the jacket platform and the tubular joints, and the pseudo-excitation method is used to calculate the power spectral density of the hot spot stress. Finally, a practical jacket platform with an ice-breaking cone in the Bohai Gulf is optimized, and the results demonstrate that the fatigue life of tubular joints could be improved and the weight of jackets decreased simultaneously.


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    Title :

    Optimum design of ice-resistant offshore jacket platforms in the Bohai Gulf in consideration of fatigue life of tubular joints


    Additional title:

    Optimale Konstruktion von eisresistenten ortsfesten Offshore-Plattformen im Golf von Bohai unter Berücksichtigung der Ermüdungslebensdauer von Rohrverbindungen


    Contributors:
    Li, Gang (author) / Liu, Xiang (author) / Liu, Yuan (author) / Yue, Qianjin (author)

    Published in:

    Ocean Engineering ; 35 , 5-6 ; 484-493


    Publication date :

    2008


    Size :

    10 Seiten, 23 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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