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Annals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding
ISSN 1221-4620 · Galati University Press · 242 artikel di indeks
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Artikel Jurnal
Pathways to maritime decarbonisation: comparative insights of solar powered proven designs
The maritime industry, a significant contributor to global carbon emissions, faces mounting pressure to transition toward sustainable operations through the integration of renewable energy technologies. This study offers a detailed comparative analysis of two solar-powered vessels, MS Tûranor…
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Artikel Jurnal
Harnesing wind power in maritime shipping
The maritime sector, responsible for approximately 2.5% of global carbon dioxide emissions, faces mounting pressure to implement sustainable practices in line with international decarbonization goals. Wind energy has emerged as a promising solution, with innovative applications being explored to…
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Artikel Jurnal
Comparative natural global vibration modes analysis of two gas carrier maritime ships
This technical paper presents a comparative study of two gas carrier maritime ships, focusing on their natural global vibration characteristics. The selected ships are an LPG carrier with a length of 125.6 m and an LNG carrier with a length of 289.3 m, both of which have fully developed structural…
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Artikel Jurnal
Survey and rehabilitation of the dry-dock main floating gate
The paper is a theoretical and practical approach to the uncommon way of rehabilitation of the dry-dock main gate of Damen Shipyards Galați. Most of the water tight system of the gate being under water and considering the improper condition of work in the Danube water, the taking out of the gate…
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Composite materials used for kayaks
Composite materials are quite popular in kayak construction, especially for the hull of the boat, offering a number of advantages over traditional materials. Composite kayaks are made from resin-impregnated laminates of fiberglass, aramid fibers, carbon fiber, or a mixture of these and other…
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Artikel Jurnal
Floating production storage offloading concept
This article explains the advantages of Floating Production, Storage, and Offloading vessels, recent trends in mooring systems, hull construction, safety, and operational aspects. These types of vessels are vital to the modern offshore oil and gas industry. These specialized ships are designed to…
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Artikel Jurnal
The analysis of induced vibrations by propulsion system excitation of an 8000 tdw chemical tanker, by a FEM approach
Nowadays, ships become larger and more flexible, requiring that their design be evaluated also according to the vibration criteria, being induced by the onboard propulsion system. The vibration onboard comfort addresses the conditions ensured for humans, namely passengers, and crew, setting up the…
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Importance of periodical examination and maintenance of propellers for ensuring seaworthiness of cargo vessels
A vessel as defined by COLREG, is operating in international waters with the assumption that it complies with international conventions adopted by the Flag Administration where it has been registered. In this regard vessels are periodically evaluated by Classification Societies recognised by the…
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Modal analysis of a 100449 tdw bulk carrier for the amidships cargo hold structure.
A modal analysis of the ships’ structures is requested at any design step to check the possibility of local resonance occurring with onboard systems and equipment. The main study objective is to perform a local modal analysis of the amishships cargo hold structure of a 100449 tdw bulk carrier. The…
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The amidship cargo holds structural response of a 158500 dwt oil tanker, on design waves
A strength analysis of the ships’ structural parts under design equivalent waves became mandatory by rule requirements, providing the elements' structural response. The main objective is to evaluate the local combined with the global structural response of a 158500 tdw oil tanker. The strength…
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Practical design aspects for inland navigation vessels to operate on the Danube River between the ports of Passau to Sulina (km 2233 to km 0)
The article aims to line up the main design aspects that are to be accounted in the process of designing an inland vessel for navigating on the Danube River from Passau Port (at Km 2233) to Sulina (at Km 0). The design process itself is comprehensive and must comply with many regulations and the…
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Artikel Jurnal
Aerodynamic study of a recreational vessel designed for navigation in the Danube Delta
The paper presents a study on the aerodynamic influence of wind on the hull of a sailing vessel, analysed both without sails and in full sail configuration, at different wind speeds and angles of incidence, in order to determine its aerodynamic torsor. The methodology included 3D model ling of the…
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Artikel Jurnal
Effects of ship vibration from the point of view of marine life, crew and ship structure
In this paper, we are trying to analyse what excessive ship noise and vibration can cause from multiple points of view. Firstly, from a biological point of view, we can observe that a lot of sea species are affected by the vibration caused by ships along the modern trade routes. Secondly from the…
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Analysis of global and local strength using 3D FEM models extended over 3 cargo holds of a 47600 dwt chemical tanker
This study examines both the local and global structural strength of a 3D finite element model (FEM) representing the three cargo holds of a 47600-DWT chemical tanker. Vessels of this type require a detailed assessment of their structural behavior under extreme loading conditions as well as routine…
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Artikel Jurnal
Yacht design in the era of digital transition
The design of ships has changed dramatically since the 1970s. We have shifted from manual drafting to digital tools and computers, mostly because computer technology has greatly improved. Nowadays, with the growth of smart digitalization in Industry 4.0, using modern digital software and tools…
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Artikel Jurnal
The influences of forces generated by wind against a ferry type vessel
The advancement of innovative solutions in shipbuilding demands the ongoing enhancement of research infrastructure. Hydro-aerodynamic challenges related to fluid flow around ship hulls can be addressed using numerical and/or experimental methods. However, numerical results must always be validated…
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Artikel Jurnal
Resistance and powering prediction using AutoPower module of AutoShip software case study
In the preliminary design stage of displacement ships, assessing total resistance and propulsion power demand is critical, since variations in hull form parameters significantly influence propulsion efficiency and engine sizing. In this study, the AutoPower module of the AutoShip software suite is…
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Artikel Jurnal
Project management approach for HVDC topside: risk assessment analysis of spool manufacturing
This paper aims to present how the risk assessment is conducted and to explore the main risks that could potentially disrupt the production flow of piping spool fabrication. From a management perspective, risk assessment may act as a foundation for a successful project. However, if it is not solid…
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Artikel Jurnal
Stress and deformation analysis of a modular floating dock with a 5000-ton lifting capacity
This study investigates the global structural behaviour of a modular floating dock with a 5000-ton lifting capacity. Using the finite element method (FEM), the research assesses stress and deformation responses under different operational conditions, namely-lightship, ballasted, and full-load, both…
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Artikel Jurnal
Testing of the anchoring installation for seagoing ships
The anchoring installation is one of the most important deck systems, ensuring the safe temporary positioning of a ship in roads, coastal areas or inland waters. Although its configuration may differ from one vessel to another, the design and testing procedures are strongly standardised by the…