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 long-term 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.
2021,43(10): 72-78 收稿日期：2020-05-14
DOI：10.3404/j.issn.1672-7649.2021.10.016
分类号：U674.38
作者简介：李境伟(1993-),男,硕士研究生,研究方向为船舶与海洋工程
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