Development of a coupled time-domain model for complexly moored multi-body system with application in catamaran float-over deck installation

IF 4 2区工程技术 Q1 ENGINEERING, CIVIL

Marine Structures Pub Date : 2025-05-19 DOI:10.1016/j.marstruc.2025.103849

Meiyan Zou , ChuanZheng Chen , Mingsheng Chen , Panpan Xiao , Mingjun Ouyang , Yichang Tang , Wenhua Zhao , Xinliang Tian

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引用次数: 0

Abstract

Multiple floating structures offer a versatile solution for offshore engineering. However, these systems are inherently complex due to hydrodynamic interactions and intricate connections between structures and moorings. This study aims to develop a coupled time-domain model for multiple floating structures, and to demonstrate its application to catamaran float-over operations. The developed model is validated against AQWA using a catamaran float-over installation of a Spar platform as a benchmark case. Results indicate that adopting a state-space model enables fast and accurate predictions of multiple floating structures. Additionally, it is observed that iterative algorithms significantly influence the prediction of impact dynamics when impacts and separations occur alternately. The developed model exhibits good agreement with AQWA in forecasting the kinematics and impact forces of the catamaran float-over system, confirming its reliability for simulating multiple offshore structures.

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复杂系泊多体系统耦合时域模型的建立及其在双体船浮式甲板安装中的应用

多种浮式结构为海上工程提供了多种解决方案。然而，由于水动力相互作用以及结构和系泊之间的复杂连接，这些系统本身就很复杂。本研究旨在建立多浮体结构的耦合时域模型，并验证其在双体船浮上作业中的应用。利用Spar平台的双体船浮式装置作为基准案例，对所开发的模型进行了AQWA验证。结果表明，采用状态空间模型可以快速准确地预测多个浮体结构。此外，当碰撞和分离交替发生时，迭代算法对碰撞动力学的预测有显著影响。所建立的模型在预测双体船浮船系统的运动学和冲击力方面与AQWA具有较好的一致性，证实了该模型用于模拟多个海上结构体的可靠性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Marine Structures 工程技术-工程：海洋

CiteScore

8.70

自引率

7.70%

发文量

157

审稿时长

6.4 months

期刊介绍： This journal aims to provide a medium for presentation and discussion of the latest developments in research, design, fabrication and in-service experience relating to marine structures, i.e., all structures of steel, concrete, light alloy or composite construction having an interface with the sea, including ships, fixed and mobile offshore platforms, submarine and submersibles, pipelines, subsea systems for shallow and deep ocean operations and coastal structures such as piers.