Hydrodynamic Characteristics of Hybrid Mooring System with Dual-Platform Joint Operation

Abstract

Abstract:With the development of marine resources, a dual-platform joint operation has been paid more attention. In this paper, the mooring layout space and relative motion limitation of the dual-platform berthing operation were fully considered. A new hybrid mooring system with “X + buoy” combination was designed based on the characteristics of catenary and tension mooring. The hydrodynamic characteristics of the new mooring system were analyzed by combining numerical simulation with model experiment. Under the regular and freak waves with different wave heights and periods, the time-domain full-coupling analysis method was used to study the hydrodynamic characteristics of the mooring system. It can be found that the arrangement of dual-platform under 0 ◦ wave direction is optimal, and the “X + buoy” combined mooring system designed in this paper has a good follow-up between the two platforms under different regular and freak waves. The relative motion response between the two platforms can be effectively controlled, and finally the positioning of the dual-platform joint operation is realized. Research results of this paper provide a theoretical basis and technical support for the hydrodynamic performance analysis and safety assessment of deep-sea offshore platforms in China.

Key words:dual-platform joint operation, hybrid mooring system, hydrodynamic characteristics, freak wave

摘要：随着海洋资源的不断开发需求，双平台联合作业形式得到了越来越多的重视。本文基于双平台靠泊作业时系泊布置空间和相对运动限制，基于悬链线式和张紧式锚泊特性，设计出一种“X+浮筒”组合的新型混合式锚泊系统。运用数值模拟与试验相结合的方法开展新型锚泊系统的水动力特性分析。运用时域全耦合分析方法，研究了该锚泊系统在不同波浪高度和不同波浪周期的规则波以及畸形波作用下的水动力特性。通过研究可以发现，双平台在0°浪向下的布置是最优的，本文设计的“X+浮筒”组合系泊系统在不同规则波和畸形波作用下，双平台之间具有良好的跟随性。两个平台之间的相对运动响应能够得到有效控制，最终实现双平台联合作业的定位。本文的研究成果为我国深海海洋平台的水动力性能分析和安全评估提供了理论依据和技术支撑。

关键词:双平台联合作业，混合式锚泊系统，水动力特性，畸形波

CLC Number:

U661.1

HUO Fali, YANG Jichuan, ZHU Chenyang, WEI Changdong, ZHAO Yinzhi. Hydrodynamic Characteristics of Hybrid Mooring System with Dual-Platform Joint Operation[J]. J Shanghai Jiaotong Univ Sci, 2025, 30(6): 1242-1254.

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