本文選題：移動式海上基地 + 半潛式海洋平臺��； 參考：《石油勘探與開發(fā)》2016年06期

【摘要】：以移動式海上基地(MOB)作為研究對象,提出其柔性連接構件在惡劣海況下的動約束力簡化計算方法,并采用該方法計算、分析了MOB連接構件動約束力隨不同參數(shù)的變化規(guī)律。該算法采用修正后的Morison方程替代勢流理論計算MOB所受波浪力,對目前常用的計算方法進行了簡化。將該算法與基于勢流理論算法的計算結果進行對比,驗證了該算法的正確性與合理性。采用該算法計算了不同海況等級、波浪入射方向、連接構件剛度條件下的MOB柔性連接構件動約束力,結果表明:在x方向上動約束力隨浪向角的增加而減小,在y、z方向上動約束力隨浪向角的增加先增加后減小;海況等級越高連接構件動約束力越大;隨著連接構件剛度的增加動約束力近乎線性遞增;相同條件下不同連接構件受力較均勻。
[Abstract]:Taking mobile offshore base mob as the research object, a simplified calculation method of dynamic binding force for flexible connection members under adverse sea conditions is proposed. The variation of dynamic binding force of MOB connection members with different parameters is analyzed by using this method. In this algorithm, the modified Morison equation is used instead of the potential flow theory to calculate the wave force in MOB, and the commonly used calculation method is simplified. The correctness and rationality of the algorithm are verified by comparing the results of the algorithm with that based on the potential flow theory. The method is used to calculate the dynamic binding force of MOB flexible connection members under different sea conditions, wave incident direction and stiffness. The results show that the dynamic binding force decreases with the increase of wave angle in the x direction. The dynamic binding force firstly increases and then decreases with the increase of the wave angle in the yniz direction; the higher the sea condition grade, the greater the dynamic binding force of the connecting member; the more the stiffness of the connecting member increases, the more the dynamic binding force increases almost linearly Under the same conditions, the force of different connecting members is more uniform.
【作者單位】： 天津大學水利工程仿真與安全國家重點實驗室;高新船舶與深海開發(fā)裝備協(xié)同創(chuàng)新中心;重慶交通大學河海學院;
【基金】：國家自然科學基金(51679166;51479133);國家自然科學基金創(chuàng)新研究群體科學基金(51321065) 交通運輸部交通建設科技項目(2014328224040)
【分類號】：P751;P731.2

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