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Research on Seakeeping, Stability and Maneuvering in Waves of Marine...
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Research on Seakeeping, Stability and Maneuvering in Waves of Marine Vessels and 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: closed (15 December 2023) | Viewed by 7210

Special Issue Editor

Dr. Giuliano Vernengo

E-Mail Website
Guest Editor
Department of Electric, Electronic, Telecommunication Engineering and Naval Architecture (DITEN), Polytechnic School of the University of Genova, 16145 Genova, Italy
Interests: seakeeping; maneuvering; stability; waves; Boundary Element Methods (BEM); Smoothed Particle Hydrodynamics (SPH)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The design processes of modern vessels and floating structures are driven by the quest for ever-increasing performance and higher efficiency in real environmental scenarios. Their dynamic analysis focuses on their responses in waves so as to capture their operating behaviors and to provide more detailed information to be used at the design stage.

Oceangoing vessels, ocean-floating platforms and energy-harvesting structures are the target applications of interest in this Special Issue.

Topics of interest include, but are not limited to:

  • Prediction methods for vessels and floating structure dynamic performance in waves.
  • Development, validation and testing of numerical methods ranging from Strip Theories, Boundary Element Methods (BEM), and Slender Body Theories (SBT), to Computational Fluid Dynamics (CFD) approaches relying on RANS, SPH, IBM and other techniques.
  • Results from experimental campaigns at either model or full scale.
  • Short- and long-term operability analysis of vessels.
  • Survivability analysis of structures.
  • Second generation intact stability criteria.
  • Moored floating structures analysis.
  • Maneuvering in waves of vessels.
  • Second-order forces (drift forces) prediction.
  • Gap-resonant phenomena in moonpools and multi-hulls.

Both methodological approaches and practical applications are encouraged to capture the state of the art and to orient the research community towards promising future theories, methods, and new concepts.

Dr. Giuliano Vernengo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • seakeeping
  • stability in waves
  • ship hydrodynamics
  • maneuvering
  • operability
  • safety
  • comfort
  • second generation intact stability criteria
  • boundary element method (BEM)
  • computational fluid dynamics (CFD)

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Published Papers (4 papers)

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Research

13 pages, 1588 KiB  
Article
Analysis of Holding Force Acting on Anchored Vessels
by Seungsik Min and Kyungwon Oh
J. Mar. Sci. Eng. 2024, 12(1), 95; https://doi.org/10.3390/jmse12010095 - 2 Jan 2024
Viewed by 1632
Abstract
In this paper, a mathematical and physical interpretation of the length and angle of the catenary curve made by anchor chains was implemented, and the safety of an anchored vessel was reviewed. So far, the holding force has usually been calculated when the [...] Read more.
In this paper, a mathematical and physical interpretation of the length and angle of the catenary curve made by anchor chains was implemented, and the safety of an anchored vessel was reviewed. So far, the holding force has usually been calculated when the angle of the catenary curve of the anchor chain to the seafloor is 0°. In this study, the holding force equation was strictly and explicitly derived considering the length of the chain and the depth of the sea. In addition, equations for the angle and length of the catenary curve were mathematically derived when anchor dragging occurs. The holding force equations derived in this paper are expected to help provide guidelines for vessel design or increase the safety of anchoring. Full article
(This article belongs to the Special Issue Research on Seakeeping, Stability and Maneuvering in Waves of Marine Vessels and Floating Structures)
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15 pages, 6828 KiB  
Article
Features of Dynamism Wharf-Cable-Dynamic-Positioning Vessel Rigid-Flexible Coupling Multi-Body System Analysis
by Dapeng Zhang, Bowen Zhao, Haoyu Jiang and Keqiang Zhu
J. Mar. Sci. Eng. 2023, 11(8), 1601; https://doi.org/10.3390/jmse11081601 - 16 Aug 2023
Viewed by 1307
Abstract
The conventional mooring positioning technique is cost-effective; however, it shows poor maneuverability and positioning precision. In this study, to calculate the mooring tension, mooring cables were discretized into lumped mass models using the lumped mass technique. Dock fender nonlinear response forces were modeled [...] Read more.
The conventional mooring positioning technique is cost-effective; however, it shows poor maneuverability and positioning precision. In this study, to calculate the mooring tension, mooring cables were discretized into lumped mass models using the lumped mass technique. Dock fender nonlinear response forces were modeled in OrcaFlex using the Link unit. The multi-body system’s entire coupling vibrant time-frequency features have been examined. The effect of the side thrusters on removing the vessel motion carried on by the first-order wave loads has been determined under mooring conditions by comparing the difference in horizontal degree of freedom motion and the mooring line’s mooring tension between dynamic and non-dynamic positioning vessels (DPV). The impact of the wharf-cable and target position on side thrusters and positioning capabilities are analyzed, considering the results of both vessels under identical environmental loads. The results demonstrate that deep evaluation of the target position can greatly improve side thruster performance and ship positioning precision. DP systems are weak to cancel linear wave forces, and the missing ship motions for DP ships may be due to the combined action of the fender, moorings and the selection of a good target position. When the selection of the target position is unreasonable, the size of the pre-tension of the mooring line cannot meet the requirement of absorbing the first-order wave load on the vessel. Full article
(This article belongs to the Special Issue Research on Seakeeping, Stability and Maneuvering in Waves of Marine Vessels and Floating Structures)
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22 pages, 18151 KiB  
Article
A Unified Numerical Method for Broaching and Loss of Stability in Astern Seas
by Jiang Lu, Min Gu and Evangelos Boulougouris
J. Mar. Sci. Eng. 2023, 11(8), 1555; https://doi.org/10.3390/jmse11081555 - 6 Aug 2023
Cited by 2 | Viewed by 1308
Abstract
The interim guidelines of second-generation intact stability criteria and their explanatory note were issued by the IMO in 2022. However, due to their complexity, the direct stability assessments of broaching and loss of stability still need to be made easier for users. Therefore, [...] Read more.
The interim guidelines of second-generation intact stability criteria and their explanatory note were issued by the IMO in 2022. However, due to their complexity, the direct stability assessments of broaching and loss of stability still need to be made easier for users. Therefore, the mathematical models for broaching and loss of stability in astern seas are studied in this paper. Firstly, a time-domain 6 DOF numerical model is adopted, combining seakeeping and maneuvering mathematical models. Secondly, the hydrodynamic forces, heave, and pitch motions are obtained by an enhanced strip method with the upright hull at different speeds in the frequency domain. Then, their time-domain values are transferred from their frequency-domain values with the speed variation considered. Thirdly, the time-domain varied wet hull in waves is captured by the 6 DOF ship motion. Then, the Froude–Krylov and the hydrostatic forces in the surging, swaying, rolling, and yawing directions are simulated considering the wave pressure around the wet hull. Fourthly, the exposure of the twin rudders and the wave-particle velocity are considered for predicting broaching. Finally, the calculated results are compared with the published results. The results show that the time-domain 6 DOF coupled numerical model can be unified for predicting broaching and loss of stability in the astern seas. Full article
(This article belongs to the Special Issue Research on Seakeeping, Stability and Maneuvering in Waves of Marine Vessels and Floating Structures)
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15 pages, 2460 KiB  
Article
Evaluation by a Quantitative Index about Intact Stability Performance in Waves of a Set of Megayacht Units
by Nicola Petacco and Paola Gualeni
J. Mar. Sci. Eng. 2023, 11(4), 814; https://doi.org/10.3390/jmse11040814 - 11 Apr 2023
Cited by 1 | Viewed by 2145
Abstract
Intact stability represents one of the most important topics when addressing ship safety, and it is ruled by the IMO Intact Stability code, evaluating ship stability in a calm water scenario. However, the interest in ship stability in waves has increased in recent [...] Read more.
Intact stability represents one of the most important topics when addressing ship safety, and it is ruled by the IMO Intact Stability code, evaluating ship stability in a calm water scenario. However, the interest in ship stability in waves has increased in recent years and this has led to the formulation of the second generation intact stability criteria (SGISc), finalized at IMO in 2020. In this research, an approach to quantitatively and comprehensively evaluate the ship stability performance in waves has been pursued. A methodology is developed with reference to the SGISc. The intact stability in waves index (ISWI) has been proposed, with the aim to become a complementary tool for designers and shipbuilders in the assessment of stability performance in waves. The ISWI represents a comprehensive stability index, able to capture the stability in waves performance of a vessel. The stability index has been verified on a set of megayacht units and its sensitivity to the wave characteristics has been tested, changing the environmental conditions. The outcomes point to a good agreement between the ISWI and the influence of environmental condition changes on the stability performance. Full article
(This article belongs to the Special Issue Research on Seakeeping, Stability and Maneuvering in Waves of Marine Vessels and Floating Structures)
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