水深对超大型FPSO脉动压力的影响  

The Effects of Water Depth on the Oscillating Pressure of a Very Large FPSO

作　　者：谢永和[1] 李润培[2] 

机构地区：[1]浙江海洋学院船舶与建筑工程学院,浙江舟山316004 [2]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《应用基础与工程科学学报》2006年第4期550-556,共7页Journal of Basic Science and Engineering

基　　金：国家863计划重大专项资助项目(2002AA602011);浙江省重大科技攻关项目(2004C11034)联合资助

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波浪载荷的影响问题突现出来.建立了基于三维势流理论的脉动压力数值模型,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300000 DWT(Deadweightton)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.With the wide use of very large FPSO（ Floating Production,Storaye,and Offloading units） 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 composit green function is employed to develop a program for the computation of the hydrodynami e c coefficients of the FPSO in shallow based on three-dimensional theory. The oscillating pressure of a 300000 DWT （Deadweight ton ） FPSO has been calculated. It shows that the oscillating pressure increases with the decrease of water depth. In addition, in the ultra-shallow water the illating pressure increases very evidently with the decrease of water depth. Therefore, the wave-induced vertical bending moment and sheafing force will be much more in such shallow water.

关 键 词：水深 超大型FPSO脉动压力 

分 类 号：U661.4[交通运输工程—船舶及航道工程]