管卡位置对海管立管的敏感性分析

以海洋平台海管立管为研究对象，考虑实际海况和立管实际结构特点，研究多层立管之间及多层立管与平台之间的受力耦合作用。通过有限元分析软件，建立具有典型代表性的海洋多层立管数值模型。针对管卡位置对海管立管的结构影响，基于管卡位置对海管立管的结构强度和疲劳寿命进行分析。根据分析结果，对管卡的安装位置进行优化，为现场作业提供理论指导，进一步为海上工程设计和施工提供科学依据和安全保障。

Sensitivity Analysis of Pipe Clamp Position to Subsea Pipe Riser

Taking the riser of offshore platforms as the research object, the actual sea conditions and the actual structural characteristics of the riser are comprehensively considersed. The force coupling effect between multi-layer risers, as well as the force coupling effect between multi-layer risers and platforms are studied. Through finite element analysis software, a typical and representative numerical model of marine multi-layer risers is established to address the influence of pipe clamp position on the structure of the riser. Based on the position of pipe clamps, the structural strength and fatigue life of offshore pipe risers are analyzed and studied. Based on the analysis results, the installation position of pipe clamps is optimized to provide theoretical guidance for on-site operations and further provide scientific basis and safety guarantee for offshore engineering design and construction.