Advances in Navigability and Mooring (2nd Edition)

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: 10 December 2024 | Viewed by 2887

Special Issue Editor


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Guest Editor
Faculty of Maritime Studies and Transport, University of Ljubljana, 6320 Portorož, Slovenia
Interests: safety of navigation; marine engineering; VTS; remote sensing of oil pollution; simulator-based maritime training
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Special Issue Information

Dear Colleagues,

Most of the need for research into the navigability of waterways, approach channels, harbour basins, docks, mooring, rivers, and related matters, arises from the enlargement of scale makes commercial maritime ports more attractive. As such, we invite scholars working in relevant areas to submit articles providing analytical, computational (FEM, etc.), modelling and experimental methods. We are particularly interested in papers addressing challenges such as ship handling when vessels are exiting ports when sailing at reduced under keel clearance, sailing and approaching through narrow channels, port approach planning, manoeuvring vessels exposed to strong crosswinds, ship-to-ship interactions, advanced towing arrangements, new dredging methods, and port extension engineering. Alternative manoeuvres to minimize prop-wash and bed disturbance are acceptable. In addition, we are open to propositions regarding any new risks, difficulties, and challenges that arise from this general field of maritime affairs.

We are particularly eager to publish papers which address technical solutions (and best practices) that enhance effective and safe navigation through restricted waters, such as integrated navigation systems, position integrity solutions, maritime adaptive GNSS concepts, pilot navigation units, enhanced ECDIS, VDES and e-navigation solutions, laser docking systems, the automatic collision avoidance function of VTS, radiolocation and other methods, communication and navigation systems for integration, and the exchange of marine information needed for safe approaches and berthing.

Maintaining a safe berth is a continual challenge for large ships of an ever-increasing size. Topics with special interest to this publication include fendering and vessel mooring layout analysis, as well as a computational method for mooring forces and the behaviour of the moored ship; dynamic mooring analysis; vessel motion control strategies based on mechanical arms, hydraulic auto-tension, and fasting systems; vacuum pads; and Bollard load calculation, especially when more than one mooring line is made fast. In particular, we are looking for studies which focus on the passage of large ships through channels and analyse training needs, simulation tools (currently available ship-handling simulators do not provide realistic ship-bank interactions), and the workload and stress of pilots navigating increasingly large, less capable ships in challenging conditions. We are very interested in the applicability of the latest pilotage support systems that larger vessels will be required to install for passage through the Panama Canal. We are also investigating the versatility of remote pilotage.

Beyond the scientific interest of various studies and beyond the technical task of providing new measures to enhance the safety of shipping in the face of challenges uninvited by ports, we would like this Issue to have some bearing on contemporary issues in general—this primarily includes the challenges inherent to managing a world heading for environmental disaster. The following political considerations should be factored into any submissions: that pure science is not a meaningful concept in a complicated commercial world, as we have seen over recent years, not just in regard to obvious issues such as pollution but also piracy, but also in relation to political matters between nations. We welcome research that places maritime science with the humanities in ways that address the very real problems of our global system.

Dr. Marko Perkovic
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

  • waterway
  • harbour approach
  • navigation
  • maneuvering
  • scale enlargement
  • berthing and mooring
  • pilotage and towage

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Published Papers (2 papers)

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Research

17 pages, 3923 KiB  
Article
Estimation of Tug Pulling Power (Bollard Pull) and Number of Tugs Required During Ship Mooring Operations
by Vytautas Paulauskas, Donatas Paulauskas and Martynas Simutis
J. Mar. Sci. Eng. 2024, 12(11), 1959; https://doi.org/10.3390/jmse12111959 - 1 Nov 2024
Viewed by 654
Abstract
Harbour tugs are usually used to moor ships if large ships do not have their own additional propulsion devices (thrusters). Alternatively, during ship loading operations, ships sometimes have to be transferred from one quay to another, and in some cases, port users (shipping [...] Read more.
Harbour tugs are usually used to moor ships if large ships do not have their own additional propulsion devices (thrusters). Alternatively, during ship loading operations, ships sometimes have to be transferred from one quay to another, and in some cases, port users (shipping companies or other companies) have to pay for port tug services. In such cases, it is very important to guarantee the safety of shipping during mooring operations and to use tugboats optimally and at the same time reduce the cost of tugboat services for ship operators and other companies. For the optimal use of tugboats, it is very important to accurately estimate the required traction force (bollard pull) of tugboats and their quantity, taking into account the parameters of moored ships, the locations of berths, hydro-meteorological and hydrological conditions, and clearance (the gap between the ship’s hull and the bottom of the water area), in order to guarantee the safety of navigation and not to order an excess of tugboats in terms of their quantity and powers. This article presents a methodology developed for estimating the required bollard pull and the number of tugs, taking into account the parameters of the ship, hydro-meteorological and hydrological conditions, clearance, and the locations of berths. The developed methodology for estimating the number of tugboats and their traction force (bollard pull) was tested in real conditions (with real ships and tugboats) and using a calibrated simulator, and we found that it can be successfully applied in any port or other complex shipping area by adapting it to specific conditions. The developed methodology for calculating the traction power (bollard pull) of tugboats allows us to determine the required traction force of tugboats in advance with sufficient accuracy, achieved by assessing the specific parameters and environmental conditions of the vessel served by tugboats. In the most difficult areas of the port, in terms of the use of tugboats, this methodology allows us to make reasonable decisions regarding the number of tugboats and the traction force (bollard pull) required and at the same time reduces the risk of emergency situations. Full article
(This article belongs to the Special Issue Advances in Navigability and Mooring (2nd Edition))
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19 pages, 18452 KiB  
Article
Dynamic Inversion Model of the Mooring Force on a Floating Bollard of a Sea Lock
by Linjian Wu, Zhouyu Xiang, Dan Shu, Mingwei Liu, Jia Yang and Minglong Li
J. Mar. Sci. Eng. 2023, 11(7), 1374; https://doi.org/10.3390/jmse11071374 - 5 Jul 2023
Cited by 4 | Viewed by 1715
Abstract
Sea locks that connect inland canals and rivers to the open sea are crucial links that ensure the efficient navigation of ships. Floating bollards (FBs) are significant components of sea locks, and they are affected by factors such as large ships, speed of [...] Read more.
Sea locks that connect inland canals and rivers to the open sea are crucial links that ensure the efficient navigation of ships. Floating bollards (FBs) are significant components of sea locks, and they are affected by factors such as large ships, speed of entry, and irregular mooring lines coupled with corrosion by chloride salts from seawater intrusion from the environment. These factors aggravate damage to metal structures, which seriously threatens the safety of FBs. Overloading of FBs by mooring forces caused by the illegal use of FBs for the braking of large ships that enter locks at excessive speed is the main cause of structural damage and overload failure for FBs. Controlling the dynamic mooring force acting on the FB is an important prerequisite to ensure the safe passage of a ship through a lock. It is impossible to perform real-time monitoring of the magnitude and direction of the mooring force on an FB by installing load-measuring equipment on the mooring line. Therefore, in this study, the structure of an FB in a sea lock project was taken as an example, and the mathematical relationships between the strain in the load-sensitive area of the FB and the mooring force and the mooring angle were quantified. A dynamic inversion model of the ship mooring force on an FB was proposed. This model used real-time feedback from the strain signal in the load-sensitive region of the FB structure to obtain information about the mooring force. The accuracy of the model was verified by conducting tests with a physical model of the topside structure of the FB and comparing the predicted results with the test data. The research results can lay a theoretical foundation for real-time monitoring of the structural response of an FB under the action of mooring forces and promote the development of intelligent methods for the operation and maintenance of a sea lock, which have important scientific significance and engineering value. Full article
(This article belongs to the Special Issue Advances in Navigability and Mooring (2nd Edition))
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