超深水半潜式平台典型节点强度分析  

Typical node strength analysis of ultra-deepwater semi-submersible platform

作　　者：李境伟 窦培林[1] 张兴刚 LI Jing-wei;DOU Pei-lin;ZHANG Xing-gang(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《舰船科学技术》2021年第10期72-78,共7页Ship Science and Technology

摘　　要：半潜式钻井平台在水中漂浮作业,会受到多种载荷的影响,包括风、海流、波浪等载荷。对于在水中长期漂浮的结构物来说,最重要的是波浪载荷的作用。因此在强度分析时可以忽略风和海流的载荷作用,只考虑波浪载荷。基于三维势流理论和莫里森方程计算波浪载荷传递函数,并进行长期预报,确定一系列的设计波参数,对关键节点应力集中情况及应力分布情况进行深入分析,为半潜式平台的研究提供参考。Semi-submersible drilling platform floating in the water will be affected by a variety of loads,including wind,current,wave and other loads.For long-term floating structures in the water,the most important is the role of wave load.Therefore,the load of wind and current can be ignored in strength analysis,only wave load is considered.Based on the three-dimensional potential flow theory and Morrison equation,the wave load transfer function is calculated,and the longterm prediction is carried out,a series of design wave parameters are determined,and the stress concentration and distribution of key nodes are analyzed in depth,which provides a reference for the later research of semi-submersible platform.

关 键 词：半潜式钻井平台 波浪载荷 三维势流理论 设计波法 结构强度 

分 类 号：U674.38[交通运输工程—船舶及航道工程]