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<p>In the process of developing oil and gas resources in the Arctic, the impact of icebergs can pose a considerable threat to the structural safety of semi-submersible mooring platforms in ice regions. On the basis of the arbitrary Lagrangian Eulerian (ALE) algorithm, a numerical model for the interaction between an iceberg and a semi-submersible mooring platform is built in this work. First, a mooring system with a link element is designed and validated. An ice material model for the target iceberg is built and validated. A numerical model for the interaction between an iceberg and a semi-submersible mooring platform is then built. A parametric study (cable angle, tension angle and number of cables) is carried out to study the performance of the mooring system. The collision process between the semi-submersible mooring platform and the iceberg in the polar marine environment can be predicted by the present numerical model, and then the optimal mooring arrangement scheme can be obtained. The research results in this work can provide a reference for the design of mooring systems.</p>

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Research on the Performance of a Mooring Platform Under the Collision of Icebergs

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Yan Zhang,
  • Song-bao Zhang,
  • Yi-tao Wang,
  • Wei-dong Zhao,
  • Hong-bin Gui

摘要

In the process of developing oil and gas resources in the Arctic, the impact of icebergs can pose a considerable threat to the structural safety of semi-submersible mooring platforms in ice regions. On the basis of the arbitrary Lagrangian Eulerian (ALE) algorithm, a numerical model for the interaction between an iceberg and a semi-submersible mooring platform is built in this work. First, a mooring system with a link element is designed and validated. An ice material model for the target iceberg is built and validated. A numerical model for the interaction between an iceberg and a semi-submersible mooring platform is then built. A parametric study (cable angle, tension angle and number of cables) is carried out to study the performance of the mooring system. The collision process between the semi-submersible mooring platform and the iceberg in the polar marine environment can be predicted by the present numerical model, and then the optimal mooring arrangement scheme can be obtained. The research results in this work can provide a reference for the design of mooring systems.