Coupled Hydrodynamics and Innovative Mooring Systems for Offshore Floating Structures

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: 31 January 2027 | Viewed by 1860

Editors


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Guest Editor
School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Interests: offshore renewable energy; mooring analysis; hydrodynamics; structural reliability
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Special Issue Information

Dear Colleagues,

The increasing demand for offshore renewable energy and sustainable ocean use has accelerated the development of multi-purpose offshore floating platforms, integrating wind, wave, floating photovoltaic, and aquaculture systems. The performance and cost-effectiveness of these platforms strongly depend on a reliable understanding of hydrodynamic behaviour and the design of efficient and innovative mooring and anchoring systems.

Floating structures are exposed to complex environmental loading from waves, currents, and wind, leading to nonlinear motions and coupled fluid–structure–mooring interactions. Recent advances in shared mooring lines and shared anchors, as well as hybrid and synthetic mooring systems, offer promising solutions to reduce material usage, seabed footprint, and overall costs, particularly for multi-body and large-scale offshore systems. However, these concepts also introduce increased coupling effects, dynamic complexity, and new challenges in fatigue and extreme response assessment. In parallel, progress in numerical modelling, CFD, experimental methods, and data-driven approaches, including machine learning, artificial intelligence, and digital twins, is enabling more efficient analysis, optimisation, and design of hydrodynamic and mooring systems under realistic environmental conditions.

This Special Issue of the Journal of Marine Science and Engineering invites high-quality original research and review papers addressing recent advances in hydrodynamics and innovative mooring and anchoring systems of offshore floating structures.

Topics of interest include, but are not limited to:

  • Hydrodynamics of offshore floating systems;
  • Multi-purpose platforms;
  • Shared mooring and shared-anchor systems;
  • Innovative, hybrid, and synthetic mooring concepts;
  • Fatigue and reliability analysis;
  • Offshore renewable energy;
  • Integrated renewable energy systems;
  • Numerical modelling;
  • Computational fluid dynamics;
  • Experimental investigation;
  • Machine learning technique;
  • AI-assisted design methods.

Dr. Shan Wang
Prof. Dr. Sheng Xu
Guest Editors

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Keywords

  • hydrodynamics
  • mooring and anchoring systems
  • shared moorings
  • shared anchors
  • multi-purpose offshore platforms
  • offshore renewable energy
  • CFD
  • machine learning
  • artificial intelligence
  • fatigue and extreme response

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Published Papers (3 papers)

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Research

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35 pages, 8779 KB  
Article
Preliminary Exploration of Resistance, Wave-Making and Pressure Distribution of Amphibious Assault Vehicle Clusters in Different Formations
by Sixing Guo, Yutao Tian, Yuting Li, Zehan Chen, Kexin Xie, Yixuan Zeng and Dapeng Zhang
J. Mar. Sci. Eng. 2026, 14(16), 1530; https://doi.org/10.3390/jmse14161530 - 18 Aug 2026
Abstract
Amphibious assault vehicles serve as core equipment for coastal defense and amphibious operations worldwide, with irreplaceable strategic value. Featuring outstanding comprehensive performance, modern amphibious assault vehicles can maintain stable navigation under Sea States 3–4 and adapt to complex nearshore hydrological environments, emerging as [...] Read more.
Amphibious assault vehicles serve as core equipment for coastal defense and amphibious operations worldwide, with irreplaceable strategic value. Featuring outstanding comprehensive performance, modern amphibious assault vehicles can maintain stable navigation under Sea States 3–4 and adapt to complex nearshore hydrological environments, emerging as the primary platform for mechanized landing operations of the Marine Corps. Cluster navigation is an inevitable tactical form in the operational application of amphibious assault vehicles. When multiple vehicles sail in formation, the wave-making and water pressure effects induced by individual vehicles generate prominent wave interference drag within the formation, which significantly impacts the overall navigation efficiency and stability. Based on the nearshore combat background of amphibious landing, this paper investigates different formation layouts of amphibious assault vehicle clusters to determine the optimal configuration for group navigation. First, a numerical simulation and a physical experiment are combined; a certain type of amphibious assault vehicle is taken as the prototype for 3D geometric modeling via SOLIDWORKS. Then, adopting the CFD numerical simulation method, with navigation speed and optimal inter-vehicle spacing fixed, variables including formation layout and number of vehicles are controlled to simulate the flow field characteristics and total resistance of different cluster formations in calm water. Meanwhile, 3D printing technology is applied to manufacture scaled-down models for towing tank tests. The experimental results are in good agreement with numerical simulations, revealing the fundamental hydrodynamic laws of formation navigation. Under optimal inter-vehicle spacing, the longitudinal tandem formation achieves the best drag-reduction effect, while the double-column staggered formation (diamond/V formation) can effectively suppress wave interference drag and improve the overall hydrodynamic performance and tactical coordination. The research provides a solid theoretical basis and data support for optimizing formation sailing strategies, enhancing cluster navigation stability and safety, and improving maritime maneuver efficiency. It is also of universal reference value for the tactical deployment of amphibious combat equipment globally. Full article
35 pages, 9181 KB  
Article
Dynamic Response and Operational Performance of an Integrated Floating Wind Turbine–Net Cage Platform
by Xing-Hua Shi, Qiang Ang, Jing Zhang, Honglong Li, Chunhan Wu and Shan Wang
J. Mar. Sci. Eng. 2026, 14(6), 548; https://doi.org/10.3390/jmse14060548 - 15 Mar 2026
Viewed by 589
Abstract
This study investigates the floating wind turbine (FWT)–Net cage integrated platform, where the net cage is rigidly connected to the FWT foundation. The platform is numerically modeled using time-domain simulations in OrcaFlex V11.1, based on representative environmental conditions of the South China Sea. [...] Read more.
This study investigates the floating wind turbine (FWT)–Net cage integrated platform, where the net cage is rigidly connected to the FWT foundation. The platform is numerically modeled using time-domain simulations in OrcaFlex V11.1, based on representative environmental conditions of the South China Sea. The operational performance of two layouts of the platform is evaluated and compared, considering both power generation efficiency and residual volume ratio as key indicators. The results show that the FWT–Net cage integrated platform exhibits superior hydrodynamic stability, characterized by reduced surge and pitch motions, lower mooring force fluctuations, and a higher residual cage volume. Additionally, the platform achieves better power generation efficiency and a higher residual volume ratio, indicating more effective use of the aquaculture space. Based on these findings, an improved integrated design incorporating additional outer net cages is proposed. This design demonstrates enhanced aquaculture capacity while maintaining power generation. The results provide valuable insights for the design of FWT–Net cage integration, promoting the efficient and sustainable utilization of marine space. Full article
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Review

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31 pages, 3341 KB  
Review
Review on Impact Loads for Launch Vehicles and Offshore Launch Platform Dynamic Characteristics
by Yifang Sun, Dapeng Zhang, Zongduo Wu and Yiquan Yu
J. Mar. Sci. Eng. 2026, 14(12), 1119; https://doi.org/10.3390/jmse14121119 - 17 Jun 2026
Viewed by 683
Abstract
Offshore rocket launches offer advantages such as unrestricted launch locations, convenient recovery, large effective payload capacity, and long satellite service life. However, due to the complex marine environment, variations in wind, waves, and currents significantly impact the dynamic performance of the launch platform. [...] Read more.
Offshore rocket launches offer advantages such as unrestricted launch locations, convenient recovery, large effective payload capacity, and long satellite service life. However, due to the complex marine environment, variations in wind, waves, and currents significantly impact the dynamic performance of the launch platform. The study of rocket plume impact on platforms and the influence of wind, waves, and currents on their dynamic performance, as well as corresponding optimization measures, is of critical importance. This paper provides a comprehensive review of the dynamic issues concerning offshore launch platforms, covering theoretical analysis, numerical simulations, and experimental research. Firstly, the research on rocket plume impact loads is introduced. Subsequently, the research achievements in the hydrodynamic performance, structural dynamics, and motion prediction of launch platforms are summarized. On this basis, recent performance optimization methods for launch platforms are presented. Finally, unresolved issues and future research directions are highlighted. The aim is to offer valuable insights for further advancements in offshore rocket launches. Full article
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