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海上安装是深海工程中的重要一环,也是浮式结构投入使用前的最后一项重大工程,多浮体相互作用分析对于指导安装期间的安全性和安装效率,对作业的成功完成起到很大的作用。此文假想以荔湾3-1气田Spar平台上部模块安装为背景,考虑了起重船、运输船和Spar平台之间的多浮体相互干扰以及小间隙共振现象,依据三维频域势流理论浮体受到的一阶波浪力和浮体运动进行了分析,并根据谱分析的方法筛选出了安装作业最佳的海浪环境参数和多浮体相对阵位。
Marine installation is an important part of deep sea engineering and also the last major project before the floating structure is put into use. The analysis of multi-floating body interaction plays an important role in guiding the safety and installation efficiency during the installation and the successful completion of the operation Role. Based on the installation of the upper module of Spar platform in Liwan 3-1 gas field, this paper considers multi-floating body mutual interference and small intersycle resonance between crane ship, transport ship and Spar platform. According to the theory of three-dimensional frequency-domain potential flow, The first wave force and the floating body movement were analyzed. According to the spectral analysis method, the best wave environment parameters and the relative floating body position were selected.