深水钻井船动力定位能力分析方法研究  

Study on dynamic positioning capability analysis method of deepwater drillship

作　　者：何进辉[1] 张海彬[1] 

机构地区：[1]中国船舶工业集团公司第七0八研究所,上海200011

出　　处：《海洋工程》2014年第1期25-31,共7页The Ocean Engineering

基　　金：工信部高技术船舶科研“3000m水深钻井船自主研发”资助项目

摘　　要：在风载荷估算的传统模块法基础上,引入了形状修正系数、方向修正系数和遮蔽系数,提出了适合于钻井船风载荷估算的改进模块法,可为钻井船动力定位能力分析提供更准确的环境载荷。同时,针对深水钻井船配置有数量众多推力器的特点,采用序列二次规划法进行推力器的推力分配优化求解,形成了适用于深水钻井船的动力定位能力分析方法,并编制了相关分析软件。实例分析表明,本方法计算结果可靠,可以用于深水钻井船的动力定位能力评估。Based on the conventional block model method, a new improved block model method is studied by introducing the shape correction coefficient, direction correction coefficient and shield coefficient. This method is more suitable for wind load calculation of drillship because it can handle numerous drilling equipments, and can provide more accurate environment loads for DP analysis of drillship. Furthermore, in order to improve the calculation efficiency, the SQP （Sequences Quadratic Program） is applied to solve the optimization of strategy of thruster distribution based on the fact that drillship is always equipped with a lot of thrusters. The dynamic positioning analysis program based on the method studied in this paper is developed. The analysis for a drilIship has been carried out. The analysis results show that the method in this paper has acceptable calculation efficiency and numerical reliability, and it is capable for evaluating dynamic positioning capability of deepwater drillship.

关 键 词：深水钻井船 动力定位 改进模块法 推力分配策略 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]