基于水动力运动响应分析的圆筒型FPSO优化设计  

Cylindrical FPSO research based on motion response analysis

作　　者：黄竹 王瑜 李思琦 唐友刚[2,3] HUANG Zhu;WANG Yu;LI Siqi;TANG Yougang(Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China;School of Civil Engineering of Tianjin University,Tianjin 300350,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300350,China)

机构地区：[1]上海船舶研究设计院,上海201203 [2]天津大学建筑工程学院,天津300350 [3]天津大学水利工程仿真与安全国家重点实验室,天津300350

出　　处：《舰船科学技术》2024年第22期118-123,共6页Ship Science and Technology

基　　金：工信部高技术船舶科研项目(CJ08N20)。

摘　　要：基于三维势流理论,研究圆筒型FPSO在南海百年一遇生存海况下运动响应。针对圆筒型FPSO垂荡运动性能较差的问题,提出将平台水线处筒体直径减小,采用JONSWAP谱生成随机波,对改进后的圆筒型FPSO开展时域运动响应分析。计算结果表明,改进后的圆筒型FPSO在位稳性满足要求;垂荡固有周期增大2.5 s,远离平台与南海百年一遇海况谱峰周期的共振区间;同时,生存海况下FPSO垂荡自由度最大运动幅值下降至2.6 m,可以满足干井采油作业条件。This paper studies the motion response of cylindrical FPSO under 100 years return sea condition in the South China Sea using three-dimensional potential flow theory.In order to solve the problem of poor heave motion performance,propose to reduce the diameter of the cylinder at the waterline of a platform.Based on JONSWAP wave spectrum to analyze the motion response of the modified cylindrical FPSO in time domain.The analysis shows that the modified cylindrical FPSO meets the requirement of stability.The natural period of platform increases by 2.5 s,away from the peak wave period in the 100-year return sea state.At the same time,the maximal heave motion amplitude of the FPSO under the survivable sea state decreases to 2.6 m,which can satisfy the conditions of the dry-well oil recovery operation.

关 键 词：圆筒型FPSO 运动响应 垂荡 

分 类 号：U674.3[交通运输工程—船舶及航道工程]