【作者】 谢永和； 李润培；

【Author】 XIE Yong-he~(1,2), LI Run-pei~1 (1. State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200030, China; 2. Engineering College of Zhejiang Ocean University, Zhoushan 316004, China)

【机构】 上海交通大学海洋工程国家重点实验室；

【摘要】 随着浮式生产储油系统在渤海浅水海域的广泛应用,水深对FPSO运动与波浪载荷的影响问题突现出来。本文建立了基于三维势流理论的脉动力数值模型,开发了有限水深复合格林函数的数值计算程序模块,对一艘300K DWT FPSO在不同水深海况下的脉动压力进行了研究。计算结果表明,随着水深的变浅脉动压力增大;而且水深越浅,脉动压力增大也越明显。由于浅水中脉动压力的显著增加,从而导致FPSO的波浪诱导垂向弯矩和剪力也明显增大。更多还原

【Abstract】 With the wide use of very large FPSO in shallow water of Bohai Bay, a new subject concerning the effects of water depth on wave induced loads response of FPSO appears. In the present paper, the finite water depth composite green function is employed to develop a program for the computation of the hydrodynamic coefficients of the FPSO in shallow based on three-dimensional theory. The oscillating pressure of a 300K DWT FPSO was calculated. It shows that the oscillating pressure increases with the decrease of water depth. In addition, in the ultra-shallow water the oscillating pressure increases very evidently with the decrease of water depth. Therefore, the wave-induced vertical bending moment and shearing force will be much more in such shallow water.更多还原