Relevant bibliographies by topics / Cargo vessels

Academic literature on the topic 'Cargo vessels'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Cargo vessels"

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Gulyaev, Ilya A., Yuri A. Kochnev, and Evgeniy P. Ronnov. "Influence of optimization model parameters on the main characteristics of the architectural and structural type of the combined vessel." Russian Journal of Water Transport, no. 72 (September 20, 2022): 15–29. http://dx.doi.org/10.37890/jwt.vi72.275.

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Transportation of liquid cargo on specialized vessels has the disadvantage of not being able to reload. This is primarily due to the impossibility of placing dry cargo on the return trip in cargo tanks, both from the point of view of the need to clean up the latter, and from the point of view of access to cargo tanks with bulky or bulk cargo. This problem can be solved with the use of specialized cargo combined vessels, which have separate cargo spaces for dry cargo back loading, and traditional tanks for the transportation of liquid petroleum products. The above design solution reduces the carrying capacity of petroleum products compared to a "clean" tanker due to an increase in the weight of the hull, as well as due to the limitation of the permissible capacity, since, especially for river vessels and vessels of mixed (river-sea) navigation, there is no possibility of increasing the dimensions of the vessel. The article presents a mathematical model and the results of test calculations for the choice of an architectural and structural type of cargo combined vessel for inland and mixed (river-sea) transportation. It is shown that the so-called platform vessels have the greatest prospects both in terms of the profit they bring to the shipowner and in terms of minimum operating costs.
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Yilmaz, Huseyin, and Mesut Giiner. "An Approximate Method for Cross Curves of Cargo Vessels." Marine Technology and SNAME News 38, no. 02 (April 1, 2001): 92–94. http://dx.doi.org/10.5957/mt1.2001.38.2.92.

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In this study, a formula is presented to estimate cross curves of cargo vessels and to predict statical stability at the preliminary design stage of the vessel. The predictive technique is obtained by regression analysis of systematically varied cargo vessel series data. In order to achieve this procedure, some cargo vessel forms are generated using Series-60. The mathematical model in this predictive technique is constructed as a function of design parameters such as length, beam, depth, draft, and block coefficient. The prediction method developed in this work can also be used to determine the effect of specific hull form parameters and the load conditions on stability of cargo vessels. The present method is applied to a cargo vessel and then the results of the actual ship are compared with those of regression values.
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Bolgov, O. "ENSURING THE SEAWORTHINESS OF A BULK VESSEL AT THE STAGE OF CARGO OPERATIONS." Collection of scientific works of the State University of Infrastructure and Technologies series "Transport Systems and Technologies", no. 39 (June 30, 2022): 229–35. http://dx.doi.org/10.32703/2617-9040-2022-39-21.

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The seaworthiness includes the conformity of the parameters of the vessel's stability and strength to the permissible limits, which is provided during the port loading and discharging operations. Requirements concerning the ship's stability and strength are universal for all types of vessels and are postulated in the International Maritime Organization (IMO) codes and documents of the shipping registers of different countries. The cargo operations of bulk carriers are responsible moment, as it determines the level of their seaworthiness and maritime safety at the sea voyage. For bulkers raised strict requirements in regard of cargo distribution and ballast operations with continuous control of their stability and strength. The search of methods for optimal performing cargo operations of the bulk vessels with assurance of all seaworthy parameters at the safe level remains actual. The bulk carriers usually have instructions for their standard loading options provided by the ship's builder, the character of which depends on the specific cargo volume and the number of holds processed at the same time. For each standard variant of cargo operations, the instructions provide a sequence of stages of loading the vessel. At the end of each stage, the vessel must be in acceptable seaworthy condition. In the situation of non-standard loading of bulk carriers, which are not covered by the shipbuilder's instructions, there are difficulties with planning and conducting cargo operations to ensure proper seaworthiness of the vessel, efficient use of its carrying capacity. Ship personnel must independently deal with the distribution of cargo, sorting through various loading options, which is not always efficient and time consuming. At the same time, a number of restrictions on the seaworthiness of the vessel must be met. The purpose of this article is to analyze the possibilities of determining acceptable variants of loading of the bulk vessel, which satisfy the limitations imposed by parameters of the seaworthiness and marine safety. The limitations imposed by the requirements of continuous vessel’s seaworthiness were considered and divided into groups with a view to creating an optimization task. The general approach to formation of a number of permissible loading of the bulk vessel, proposed in the article, creates preconditions for setting the task of choosing the optimal strategy of carrying out cargo operations on the criteria of continuous observance of seaworthy characteristics of the vessel.
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Shen, Jiang, and Yun Tao Wang. "Pre-Arrange Trim Method on Panamax Vessel when Transit through the Panama Canal." Advanced Materials Research 255-260 (May 2011): 4115–18. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.4115.

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The Panama Canal Authority has special requirements on “Size and Draught Limitation of vessels” when a vessel transit through the Panama Canal. This paper based on requirements from the Panama Canal Authority and characteristics of the Panamax vessel, represents a pre-arranged trim method on making optimum cargo plan so as to fully utilize the Panamax vessel’s carrying capacity and ensure smooth transit through the Panama Canal, it has been proved efficient and reliable.
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Melnikov, Aleksandr Valerievich, Konstantin Olegovich Sibryaev, Maxim Michailovich Gorbachev, and Adel Damirovich Ibadullaev. "Evaluating technological feasibility of fruit and vegetable transportation by sea between ports of Caspian Sea." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2021, no. 4 (November 30, 2021): 107–16. http://dx.doi.org/10.24143/2073-1574-2021-4-107-116.

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The modern process of fruit and vegetable transportation between countries depends not only on geographical, but also on political and economic factors, which makes for searching more efficient and shorter routes. The availability of such a transport opportunity as sea transportation between the ports of the Caspian Sea makes it possible to analyze new routes for the product transportation from Iran, Azerbaijan and other countries to Russia using dry cargo vessels that are currently used as the general cargo vessels. There have been analyzed the new routes for transportation of perishable products in refrigerated containers and assessed the possibility of their transportation on the “Volga” type bulk carriers. The routes “Astara (Azerbaijan) - Moscow”, “Astara - port Alat - port Kuryk - Moscow” have been illustrated. A general arrangement drawing of a “Volga” type dry cargo vessel (project 19610) is presented, the photographs of transporting timber and containers on the decks of dry cargo vessels are given. Calculating the load of the dry cargo ship’s power plant has shown a technical possibility of transporting 16 refrigerated containers on deck of the “Volga” type vessel without changes in the design of the ship’s power plant. Conclusions are made about the need to develop effective cargo transportation by waterways in modern conditions of the loss of traditional Russian suppliers of fruit and vegetable products, about the possibility of additional use of dry cargo ships, as well as the feasibility of developing a backup diesel generator for emergency power supply of deck refrigerated containers in connection with a possible increase in the capacity of the ship power plant.
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Riana Citra Dewi, Budhi Hascaryo Iskandar, Yopi Novita, Didin Komarudin, and Tri Nanda Citra Bangun. "ANALYSIS ON AMOUNT OF CARGO AND FIHERS’S INCOME IN 3 GT FRP FISHING BOAT WITH DIFERENT LIGHT WEIGHT TON (LWT) IN CILACAP." Marine Fisheries : Journal of Marine Fisheries Technology and Management 12, no. 2 (April 20, 2022): 215–23. http://dx.doi.org/10.29244/jmf.v12i2.39818.

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ABSTRACT The Ministry of Maritime Affairs and Fisheries (KKP) through the Directorate General of Capture Fisheries (DJPT) provides assistance in the form of fishing vessels to fishermen. However, the aid vessels intended for Cilacap had an empty weight that was heavier when compared to other vessels that had the same main dimensions of the vessel. The vessel that have heavier empty weights will cause poor motion when operating and reduced capacity to accommodate the vessel. The purpose of this research are to calculate the difference in the weights of aid vessel and fishing vessel, formulate the maximum weight of cargo that can be accommodated by aid vessel and fishing vessel through TPC calculations, and estimate the level of income of fishermen per trip with the maximum weight set. The research was conducted on aid vessel and 3 GT sized fishermen vessel made of fiberglass which have different vessel weights. Based on the results of the research, it was found that the empty weight of the aid vessel was 277,1847 kg and the fishermen vessel was 95,4165 kg with the difference between the two vessels 181,7682 kg. The maximum cargo weight that can be accommodated by the aid vessel at the highest draft is 3.98 tons. The maximum cargo weight that can be accommodated by fishing vessel at the highest draft is 5.98 tons. The estimated revenue of the aid vessel in the condition of a maximum load of Rp. 29,371,620 and the estimated income of fishing vessel in the condition of a maximum load of Rp. 46,081,620. Keywords: draft, fiberglass, income, main dimensions, weight
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Alvarado, David Ricardo, Luis Alejandro Paternina, and Edwin Giovanny Paipa. "SYNTHESIS MODEL FOR THE CONCEPTUAL DESIGN OF INLAND CARGO VESSELS TO OPERATE ON THE MAGDALENA RIVER." Brodogradnja 73, no. 3 (October 1, 2022): 13–37. http://dx.doi.org/10.21278/brod73402.

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Inland waterways are presented both as a need and an opportunity for developing an intermodal transport system to boost Colombian economic growth. Riverine transportation as part of an intermodal system represents conveying a significant amount of cargo at a low cost and therefore reducing greenhouse gas emissions. To competitively include this cargo transportation alternative in an intermodal context, the development of effective container vessels is required. Most of the Colombian rivers present sedimentary, high flow, and low depth nature. Then, the design of riverine cargo vessels capable of navigating in shallow waters with less brake power requirements is needed. A synthesis model: an automatic and integrated design procedure, has been programmed to generate and evaluate feasible vessel dimensions at a conceptual design stage. Through systematic variations of the main dimensions, this procedure allows evaluating a design space in which the most effective concept-vessel solution is selected. At the end of this procedure, the main characteristics for container vessels in the Magdalena River at a conceptual design stage, are defined. Validation of the synthesis model with a riverine logistic support ship is provided.
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Chistyakova, T. G., and V. P. Karpunina. "Technical project development of the mixed river-sea naviganavigation cargo vessel, SUKHOGRUZ-M." Transactions of the Krylov State Research Centre S-I, no. 1 (December 8, 2021): 325–26. http://dx.doi.org/10.24937/2542-2324-2021-1-s-i-325-326.

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The technical project of the universal dry cargo vessel of the mixed navigation class “river-sea” together with other projects solves the problem of mass aging of the Russian fleet and the high cost of imported complete equipment, the increased demand for civil transport vessels of mixed navigation, in particular for universal dry cargo vessels, by creating a new vessel with improved characteristics, during the construction of which the maximum number of components of the domestic production is used, an environmentally friendly energy installation, it allows to meet the international requirements for emissions of harmful substances into the atmosphere according to the Tier III standard, as well as modular structural solutions and composite materials.
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Kalajdžić, Milan, Matija Vasilev, and Nikola Momčilović. "Evaluating an Inland Waterway Cargo Vessel’s Energy Efficiency Indices." Polish Maritime Research 29, no. 2 (June 1, 2022): 27–34. http://dx.doi.org/10.2478/pomr-2022-0014.

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Abstract Although the International Maritime Organization (IMO) introduced the energy efficiency requirements for ships more than a decade ago, to date, inland navigation has not been affected by corresponding regulations at all. Therefore, inland waterway vessels are left with no mandatory requirements that could push their technology into more energy efficient design. Fortunately, there are certain pioneering attempts to define energy efficiency criteria for inland vessels. This paper tries to gather and provide a review of such methods. Moreover, a typical Danube cargo inland vessel’s data are used to evaluate their current energy efficiency levels with respect to provisional criteria. Consequently, two methods are found and used here. They are both based on IMO’s energy efficiency concept but modified for the inland waterway vessels. The methods delivered a significant difference in applicability and were difficult to compare. Moreover, shallow and deep-water effects are explored in the same regard but provided unsound conclusions. The final results displayed discrepancies in energy efficiency levels for the same vessels and so the methodology should be improved and harmonised, if it is to be introduced as mandatory for inland waterway vessels. The analysis provided a glimpse into the current condition of the traditional design of the Danube inland fleet, with respect to the emerging energy efficiency policies.
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Maryanov, Denys. "Control and regulation of the density of technical fluids during their transportation by sea specialized vessels." Technology audit and production reserves 1, no. 2(63) (February 15, 2022): 19–25. http://dx.doi.org/10.15587/2706-5448.2022.252336.

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The object of research is the process of transporting drilling slurry through specialized marine vessels of the Platform Supply Vessels class. The subject of research is the sedimentation stability of the drilling slurry along the height of the cargo tank, which is proposed to be defined as a relative change in vertical density near the surface and bottom of the cargo tank. The studies were carried out on a specialized sea vessel with a displacement of 7320 tons. The design of the vessel provided for the reception and transportation of drilling slurry in four cargo tanks located on the port and starboard sides of the vessel. It has been experimentally established that during the 48-hour transportation, the density of the drilling slurry in the bottom part increases to 19.7 %; decrease in density on the surface – up to 7.8 %; decrease in the sedimentation resistance of the drilling slurry along the depth of the cargo tank – up to 29.85 %. A variant of modernization of the drilling slurry transportation system by installing additional circulation pumps providing forced circulation of the drilling slurry between cargo tanks is proposed. By using programmable microcontrollers (performing turning on/off the circulation pumps), it is possible to provide the following conditions for transporting the drilling fluid: an increase in the density of the drilling fluid in the bottom part up to 0.3 %; decrease in density on the surface – up to 0.25 %; decrease in the sedimentation resistance of the drilling slurry along the depth of the cargo tank – up to 8.01 %. It has been experimentally established that the creation of additional circulation and automatic support of the sedimentation resistance of the drilling fluid in the range of 2–7 % contributes to: – increasing the relative performance of cargo pumps from 38–55 % to 92–96 %; – reducing the time of pumping drilling slurry from cargo tanks to the drilling platform from 7.1 to 3.2 hours; – maintaining the technical condition of equipment, pipelines and elements of the drilling slurry transportation and pumping system.
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Dissertations / Theses on the topic "Cargo vessels"

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Al-Hamad, Khaled. "Tabu search for ship routing and scheduling." Thesis, Brunel University, 2006. http://bura.brunel.ac.uk/handle/2438/5071.

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This thesis examines exact and heuristic approaches to solve the Ship Routing and Scheduling Problem (SRSP). The method was developed to address the problem of loading cargos for many customers using heterogeneous vessels. Constraints relate to delivery time windows imposed by customers, the time horizon by which all deliveries must be made and vessel capacities. The objective is to minimise the overall operation cost, where all customers are satisfied. Two types of routing and scheduling are considered, one called single-cargo problem, where only one cargo can be loaded into a ship, and the second type called multi-cargo problem, where multiple products can be carried on a ship to be delivered to different customers. The exact approach comprises two stages. In the first stage, a number of candidate feasible schedules is generated for each ship in the fleet. The second stage is to model the problem as a set partitioning problem (SPP) where the columns are the candidate feasible schedules obtained in the first stage. The heuristic approach uses Tabu Search (TS). Most of the TS operations, such as insert and swap moves, tenure, tabu list, intensification, and diversification are used. The results of a computational investigation are presented. Solution quality and execution time are explored with respect to problem size and parameters controlling the tabu search such as tenure and neighbourhood size. The results showed that the average of the solution gap between TS solution and SPP solution is up to 28% (for small problems) and up to 18% for large problems. However, obtaining an optimal solution requires a large amount of computer time to produce the solution compared to obtaining approximate solutions using the TS approach. The use of Tabu Search for SRSP is novel and the results indicate that it is viable approach for large problems.
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Beaver, John L. (John Lewis). "An early conceptual design and feasibility analysis of a nuclear-powered cargo vessel." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50591.

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Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009.
Includes bibliographical references (p. 85-86).
Economic globalization has resulted in the tremendous growth of worldwide trade. Much of this trade is carried out via the various waterways of the world. The bulk of these trade goods are transported by merchant ships that burn diesel fuel to propel them through the water. With the cost of crude oil rising to record highs, the cost of operating these ships has been skyrocketing as well, indicating the need for the development of alternative sources of propulsion power. This thesis focuses on the development of an early stage conceptual design for a nuclear-powered commercial cargo ship and the subsequent economic analysis of that ship in comparison with its conventionally-powered predecessor ship. In addition, this thesis will also analyze and propose solutions to the various non-technical issues that currently stand in the way of building and operating a nuclear-powered cargo vessel. The end result of this research shows that a nuclear-powered commercial cargo ship, while being technically feasible, is still economically inferior to a conventionally-powered cargo ship.
by John L. Beaver, III.
S.M.
Nav.E.
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Wang, Lei. "Quay crane scheduling at container terminals : reducing the maximum tardiness of vessel departures /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?IEEM%202003%20WANGL.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.
Includes bibliographical references (leaves 40-42). Also available in electronic version. Access restricted to campus users.
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Blau, Lukas. "Towards sustainable shipping: Recommendations for the telescopic mast design of a sailing cargo vessel." Thesis, KTH, Lättkonstruktioner, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302284.

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A comparative study is carried out to investigate the most promising route towardsthe lightweight construction of a retractable mast for a sailing cargo vessel.Four design families are developed and compared. The primary criteria forjudgment are the structural mass, strength, and stiffness in relation to a providedbenchmark design. Additional evaluation criteria are the capital costsfor raw materials and manufacturing.The design space includes isotropic materials as well as fiber-reinforced polymer(FRP) solutions and is navigated by employing analytical evaluation methodssupported by finite element analysis (FEA). Restrictions to the designspace are given by a general arrangement of the benchmark design. This includesthe limitation to the ULS loads and the overall mast geometry.A review of relevant Det Norske Veritas (DNV) rules for classification is performedand the guidelines for wind turbine blades and wind-powered units(WPU) are judged most suitable to the design challenge. Relevant design principlesare implemented in the structural analysis.It is concluded that pure metal constructions imply an unreasonably large weightpenalty. Local buckling is found to disqualify FRP single-skin solutions as successfulcandidates. Secondary to that, strength concerns are the major driversfor the structural mass.The report presents two designs that are judged fit for the purpose, one is ahybrid truss structure from high strength low alloy steel (HSLA steel) and carbonfiber-reinforced polymer (CFRP). The second design is a sandwich constructionwith CFRP face sheets, a PVC foam core, and additional stiffeningmembers in steel.
A comparative study is carried out to investigate the most promising route towardsthe lightweight construction of a retractable mast for a sailing cargo vessel.Four design families are developed and compared. The primary criteria forjudgment are the structural mass, strength, and stiffness in relation to a providedbenchmark design. Additional evaluation criteria are the capital costsfor raw materials and manufacturing.The design space includes isotropic materials as well as fiber-reinforced polymer(FRP) solutions and is navigated by employing analytical evaluation methodssupported by finite element analysis (FEA). Restrictions to the designspace are given by a general arrangement of the benchmark design. This includesthe limitation to the ULS loads and the overall mast geometry.A review of relevant Det Norske Veritas (DNV) rules for classification is performedand the guidelines for wind turbine blades and wind-powered units(WPU) are judged most suitable to the design challenge. Relevant design principlesare implemented in the structural analysis.It is concluded that pure metal constructions imply an unreasonably large weightpenalty. Local buckling is found to disqualify FRP single-skin solutions as successfulcandidates. Secondary to that, strength concerns are the major driversfor the structural mass.The report presents two designs that are judged fit for the purpose, one is ahybrid truss structure from high strength low alloy steel (HSLA steel) and carbonfiber-reinforced polymer (CFRP). The second design is a sandwich constructionwith CFRP face sheets, a PVC foam core, and additional stiffeningmembers in steel.
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Broadwater, John D. "Yorktown Shipwreck 44YO88: Stores and Cargo from a British Naval Supply Vessel from the American War for Independence." W&M ScholarWorks, 1989. https://scholarworks.wm.edu/etd/1539625489.

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Oliveira, Paula Caldo Montilha. "Análise operacional e de custo logístico do processo de transbordo de navio para navio - transshipment - no Brasil. Uma aplicação ao minério de ferro no porto de Santos." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3148/tde-01092017-144127/.

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A Indústria Naval tem investido em navios cada vez maiores visando ganhos de escala. Na última década, esse movimento se intensificou e um dos principais fatores é a influência significativa das economias emergentes na demanda de carga. Alguns dos ganhos decorrentes da utilização de navios maiores são: menor consumo de energia, menor emissão de CO2, maior capacidade de carga e, consequentemente, fretes marítimos mais competitivos. Esses novos navios acarretam a necessidade de uma revisão da infraestrutura portuária, isso porque geram uma alta concentração de carga e ainda demandam uma maior profundidade nos portos, bem como alterações nas estruturas dos terminais para recebê-los. Investimentos como dragagem, modificações de layout de terminais, entre outros, resultam em custos demasiadamente altos, além de impactos relacionados a licenciamentos para operação. Neste cenário de aumento dos navios e da consequente dificuldade de recebê-los em diversos portos, uma solução que vem sendo utilizada ao redor do mundo é a do transbordo de navio para navio no mar, o transshipment. Ele é normalmente realizado através de um navio convertido em plataforma de transbordo/transferência, substituindo a necessidade de ancoragem do navio de maior capacidade em um terminal portuário convencional. O Brasil tem o desafio de se preparar para este novo cenário e o porto de Santos, o principal do país, possui limitações para recebimentos destas embarcações. Este trabalho analisou operacionalmente e sob o ponto de vista de custos logísticos, o processo de transshipment no mar em portos brasileiros. Para tal, escolheu como estudo de aplicação o minério de ferro no porto de Santos, usando como ferramentas de análise a simulação e a comparação de custos logísticos totais das alternativas. Os resultados obtidos nas análises demonstraram a capacidade do transshipment de atender à demanda de carga em diferentes cenários e trazer uma redução de custos logísticos em relação à operação convencional.
The Shipbuilding Industry has invested in larger vessels for economies of scale. In the last decade, this movement has intensified and one of the main factors is that emerging economies have significantly influenced demand for cargo. Some of the gains from the use of larger ships are: lower energy consumption, lower CO2 emissions, higher cargo capacity and more competitive sea freight as a consequence. These new ships require a revision of the port infrastructure due to their higher concentration of cargo and still require a greater depth in the ports, as well as changes in the structures of the terminals to receive them. Investments such as dredging, modifications of terminal layout among others result in high costs, in addition to the need for upgrading licenses to operate. A solution that is being used around the world is the transshipment. It is usually accomplished through a ship converted as a transfer platform, replacing the need for anchoring the larger vessel at a conventional port terminal. Brazil needs to be prepared for this challenge and the port of Santos, the main port of the country, has limitations for receiving these vessels. This work assessed operationally and from the point of view of logistics costs, the transshipment in Brazilian ports. To do so, it carried out an application study to the iron ore in the port of Santos, using simulation and the comparison of total logistical costs of the alternatives. The results obtained demonstrated the capacity of the transshipment to attend the demand for cargo in different scenarios and reduce cost in relation to the conventional operation.
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Al-Motasem, Al-Asqalani Ahmed Tamer. "Nanoclusters in Diluted Fe-Based Alloys Containing Vacancies, Copper and Nickel: Structure, Energetics and Thermodynamics." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-89355.

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The formation of nano–sized precipitates is considered to be the origin of hardening and embrittlement of ferritic steel used as structural material for pressure vessels of nuclear reactors, since these nanoclusters hinder the motion of dislocations within the grains of the polycrystalline bcc–Fe matrix. Previous investigations showed that these small precipitates are coherent and may consist of Cu, Ni, other foreign atoms, and vacancies. In this work a combination of on–lattice simulated annealing based on Metropolis Monte Carlo simulations and off–lattice relaxation by Molecular Dynamics is applied in order to determine the structure, energetics and thermodynamics of coherent clusters in bcc–Fe. The most recent interatomic potentials for Fe–Cu–Ni alloys are used. The atomic structure and the formation energy of the most stable configurations as well as their total and monomer binding energy are calculated. Atomistic simulation results show that pure (vacancy and copper) as well as mixed (vacancy-copper, copper-nickel and vacancy-copper-nickel) clusters show facets which correspond to the main crystallographic planes. Besides facets, mixed clusters exhibit a core-shell structure. In the case of v_lCu_m, a core of vacancy cluster coated with copper atoms is found. In binary Cum_Ni_n, Ni atoms cover the outer surface of copper cluster. Ternary v_lCu_mNi_n clusters show a core–shell structure with vacancies in the core coated by a shell of Cu atoms, followed by a shell of Ni atoms. It has been shown qualitatively that these core–shell structures are formed in order to minimize the interface energy between the cluster and the bcc-Fe matrix. Pure nickel consist of an agglomeration of Ni atoms at second nearest neighbor distance, whereas vacancy-nickel are formed by a vacancy cluster surrounded by a nickel agglomeration. Both types of clusters are called quasi-cluster because of their non-compact structure. The atomic configurations of quasiclusters can be understood by the peculiarities of the binding between Ni atoms and vacancies. In all clusters investigated Ni atoms may be nearest neighbors of Cu atoms but never nearest neighbors of vacancies or other Ni atoms. The structure of the clusters found in the present work is consistent with experimental observations and with results of pairwise calculations. In agreement with experimental observations and with recent results of atomic kinetic Monte Carlo simulation it is shown that the presence of Ni atoms promotes the nucleation of clusters containing vacancies and Cu. For pure vacancy and pure copper clusters an atomistic nucleation model is established, and for typical irradiation conditions the nucleation free energy and the critical size for cluster formation have been estimated. For further application in rate theory and object kinetic Monte Carlo simulations compact and physically–based fit formulae are derived from the atomistic data for the total and the monomer binding energy. The fit is based on the structure of the clusters (core-shell and quasi-cluster) and on the classical capillary model.
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Ganchenkova, Maria, Vladimir A. Borodin, Andreas Ulbricht, Jürgen Böhmert, Roman Voskoboinikov, and Eberhard Altstadt. "Mikrostrukurelle Mechanismen der Strahlenversprödung." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-28422.

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Gegenstand des Vorhabens im Rahmen der WTZ mit Russland ist die Versprödung des Reaktordruckbehälters infolge der Strahlenbelastung mit schnellen Neutronen im kernnahen Bereich. Um den Einfluss von bestrahlungsinduzierten Gitterdefekten auf die mechanischen Eigenschaften zu ermitteln, wurden analytische Berechnungen zum Einfluss von Hindernissen auf die Beweglichkeit von Versetzungen und damit auf die Ausbildung einer plastischen Zone an der Rissspitze durchgeführt. Es wird demonstriert, dass sich die an der Rissspitze entstehenden Versetzungen an dem Hindernis (bestrahlungsinduzierte Punktdefekte) aufstauen. In Abhängigkeit der Rissbelastung KI und der Entfernung des Hindernisses von der Rissspitze werden die Versetzungsdichte und das durch den Versetzungsstau verursachte Spannungsfeld berechnet. Mit Hilfe von Experimenten zur Neutronenkleinwinkelstreuung (SANS - small angle neutron scattering) an verschiedenen WWER-Stählen und Modelllegierungen wurden Größenverteilungen und die Volumenanteile der strahleninduzierten Defekte für verschiedene Bestrahlungszustände (Fluenzen, Bestrahlungstemperaturen) ermittelt. Es wurde gezeigt, dass sich die strahleninduzierte Werkstoffschädigung durch Wärmebehandlung weitgehend wieder ausheilen lässt. Nach der thermischen Ausheilung ist der Werkstoff bei erneuter Bestrahlung weniger anfällig für strahleninduzierte Defekte. Die Ergebnisse der SANS-Untersuchungen wurden mit der Änderung der mechanischen Eigenschaften (Härte, Streckgrenze und Sprödbruchübergangstemperatur) korreliert. Mit der kinetischen Gitter-Monte-Carlo-Methode wurden numerische Sensitivitätsstudien zum Einfluss des Cu-Gehalts auf die Stabilität von Defekt-Clustern durchgeführt. Die Berechnungen zeigen, dass die Anwesenheit von Cu-Atomen zur Bildung von langlebigen Defekten führt. Dabei werden Leerstellen in Cu/Leerstellen-Cluster eingefangen. Leerstellen in reinem Eisen sind bei Bestrahlungstemperaturen von 270 °C dagegen nicht stabil, die Lebensdauer liegt zwischen 0.01 s und 1 s. Die kritische Cu-Konzentration, ab welcher stabile Defekte entstehen, beträgt ca. 0.1 Masseprozent.
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Messina, Luca. "Multiscale modeling of atomic transport phenomena in ferritic steels." Doctoral thesis, KTH, Reaktorfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177525.

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Defect-driven transport of impurities plays a key role in the microstructure evolution of alloys, and has a great impact on the mechanical properties at the macroscopic scale. This phenomenon is greatly enhanced in irradiated materials because of the large amount of radiation-induced crystal defects (vacancies and interstitials). For instance, the formation of nanosized solute clusters in neutron-irradiated reactor pressure vessel (RPV) ferritic steels has been shown to hinder dislocation motion and induce hardening and embrittlement. In Swedish RPV steels, this mechanical-property degradation is enhanced by the high content of manganese and nickel impurities. It has been suggested that the formation of Mn-Ni-rich clusters (which contain also Cu, Si, and P) might be the outcome of a dynamic process, where crystal defects act both as nucleation sites and solute carriers. Solute transport by point defects is therefore a crucial mechanism to understand the origin and the dynamics of the clustering process. The first part of this work aims at modeling solute transport by point defects in dilute iron alloys, to identify the intrinsic diffusion mechanisms for a wide range of impurities. Transport and diffusion coefficients are obtained by combining accurate ab initio calculations of defect transition rates with an exact mean-field model. The results show that solute drag by single vacancies is a common phenomenon occurring at RPV temperature (about 300 °C) for all impurities found in the solute clusters, and that transport of phosphorus and manganese atoms is dominated by interstitial-type defects. These transport tendencies confirm that point defects can indeed carry impurities towards nucleated solute clusters. Moreover, the obtained flux-coupling tendencies can also explain the observed radiation-induced solute enrichment on grain boundaries and dislocations. In the second part of this work, the acquired knowledge about solute-transport mechanisms is transferred to kinetic Monte Carlo (KMC) models, with the aim of simulating the RPV microstructure evolution. Firstly, the needed parameters in terms of solute-defect cluster stability and mobility are calculated by means of dedicated KMC simulations. Secondly, an innovative approach to the prediction of transition rates in complex multicomponent alloys is introduced. This approach relies on a neural network based on ab initio-computed migration barriers. Finally, the evolution of the Swedish RPV steels is simulated in a "gray-alloy" fashion, where impurities are introduced indirectly as a modification of the defect-cluster mobilities. The latter simulations are compared to the experimental characterization of the Swedish RPV surveillance samples, and confirm the possibility that solute clusters might form on small interstitial clusters. In conclusion, this work identifies from a solid theoretical perspective the atomic-transport phenomena underlying the formation of embrittling nanofeatures in RPV steels. In addition, it prepares the ground for the development of predictive KMC tools that can simulate the microstructure evolution of a wide variety of irradiated alloys. This is of great interest not only for reactor pressure vessels, but also for many other materials in extreme environments.

QC 20151123

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Ganchenkova, Maria, Vladimir A. Borodin, Andreas Ulbricht, Jürgen Böhmert, Roman Voskoboinikov, and Eberhard Altstadt. "Mikrostrukurelle Mechanismen der Strahlenversprödung." Forschungszentrum Rossendorf, 2006. https://hzdr.qucosa.de/id/qucosa%3A21669.

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Gegenstand des Vorhabens im Rahmen der WTZ mit Russland ist die Versprödung des Reaktordruckbehälters infolge der Strahlenbelastung mit schnellen Neutronen im kernnahen Bereich. Um den Einfluss von bestrahlungsinduzierten Gitterdefekten auf die mechanischen Eigenschaften zu ermitteln, wurden analytische Berechnungen zum Einfluss von Hindernissen auf die Beweglichkeit von Versetzungen und damit auf die Ausbildung einer plastischen Zone an der Rissspitze durchgeführt. Es wird demonstriert, dass sich die an der Rissspitze entstehenden Versetzungen an dem Hindernis (bestrahlungsinduzierte Punktdefekte) aufstauen. In Abhängigkeit der Rissbelastung KI und der Entfernung des Hindernisses von der Rissspitze werden die Versetzungsdichte und das durch den Versetzungsstau verursachte Spannungsfeld berechnet. Mit Hilfe von Experimenten zur Neutronenkleinwinkelstreuung (SANS - small angle neutron scattering) an verschiedenen WWER-Stählen und Modelllegierungen wurden Größenverteilungen und die Volumenanteile der strahleninduzierten Defekte für verschiedene Bestrahlungszustände (Fluenzen, Bestrahlungstemperaturen) ermittelt. Es wurde gezeigt, dass sich die strahleninduzierte Werkstoffschädigung durch Wärmebehandlung weitgehend wieder ausheilen lässt. Nach der thermischen Ausheilung ist der Werkstoff bei erneuter Bestrahlung weniger anfällig für strahleninduzierte Defekte. Die Ergebnisse der SANS-Untersuchungen wurden mit der Änderung der mechanischen Eigenschaften (Härte, Streckgrenze und Sprödbruchübergangstemperatur) korreliert. Mit der kinetischen Gitter-Monte-Carlo-Methode wurden numerische Sensitivitätsstudien zum Einfluss des Cu-Gehalts auf die Stabilität von Defekt-Clustern durchgeführt. Die Berechnungen zeigen, dass die Anwesenheit von Cu-Atomen zur Bildung von langlebigen Defekten führt. Dabei werden Leerstellen in Cu/Leerstellen-Cluster eingefangen. Leerstellen in reinem Eisen sind bei Bestrahlungstemperaturen von 270 °C dagegen nicht stabil, die Lebensdauer liegt zwischen 0.01 s und 1 s. Die kritische Cu-Konzentration, ab welcher stabile Defekte entstehen, beträgt ca. 0.1 Masseprozent.
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Books on the topic "Cargo vessels"

1

L, Williams David. Coastal vessels: A colour portfolio. Hersham Surrey: Ian Allan Pub., 2008.

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Englert, Anton. Large cargo vessels in Danish waters: AD 1000-1250. Roskilde: [A. Englert], 2000.

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Simon, Michel-Paul. Les péniches de chez nous. Boulogne: MDM, 1998.

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Shipping, American Bureau of. Guide for cargo vapor emission control systems on board tank vessels. Paramus, N.J., U.S.A. (P.O. Box 910, Paramus 07653-0910): The Bureau, 1990.

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United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Carriage of mail on vessels of U.S. registry: Report (to accompany S. 186). [Washington, D.C.?: U.S. G.P.O., 1986.

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Office, General Accounting. Maritime industry: As U.S. single-hull oil vessels are eliminated, few double-hull vessels may replace them : report to Congressional requesters. Washington, D.C: United States General Accounting Office, 2000.

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Office, General Accounting. Maritime industry: As U.S. single-hull oil vessels are eliminated, few double-hull vessels may replace them : report to congressional requesters. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): U.S. General Accounting Office, 2000.

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Wenstadt, Tom. Freighters of Manitowoc: The story of Great Lakes freight carrying vessels built in Manitowoc, Wisconsin. Bloomington, Ind: AuthorHouse, 2007.

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Parliament, Great Britain. A Bill (as amended by the committee) to repeal an act of the ninth year of His late Majesty: For regulating the carriage of passengers in merchant vessels from the United Kingdom to the British possessions on the continent and islands of North America, and to make further provision for regulating the same. [London?: s.n., 2000.

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Cheetham, Chris. Modern river sea traders. 4th ed. Teignmouth: Chris Cheetham and Max Heinimann, 1996.

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Book chapters on the topic "Cargo vessels"

1

Vasilyeva, Oksana. "Calculation of the Cost and Operational Parameters of the Vessel Based on the Specified Profitability in the Operational and Technical Justification of River Cargo Vessels." In International Scientific Siberian Transport Forum TransSiberia - 2021, 736–44. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96383-5_81.

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Rowbotham, Mark. "Vessel ownership & chartering." In Break Bulk and Cargo Management, 96–107. London: Informa Law from Routledge, 2022. http://dx.doi.org/10.4324/9781003256359-8.

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Rowbotham, Mark. "Offshore supply vessel chartering." In Break Bulk and Cargo Management, 169–93. London: Informa Law from Routledge, 2022. http://dx.doi.org/10.4324/9781003256359-13.

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Jiang, Shen, and Yun-tao Wang. "On Cargo Operation at Capesize Vessel." In Advances in Intelligent and Soft Computing, 281–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29455-6_40.

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Sampson, Helen. "Introduction." In The World of the Seafarer, 1–5. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49825-2_1.

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AbstractThe shipping industry transported a total volume of 10.3 billion tons of cargo in 2017 (UNCTAD 2017) and is estimated to employ 1.5 million workers (http://www.ilo.org/global/standards/subjects-covered-by-international-labour-standards/seafarers/lang%2D%2Den/index.htm accessed 1/2/18) who are classed as seafarers. Such workers are employed on different vessel types in the cruise and cargo sectors. Sailors working for the military are not classed as seafarers. However, seafarers may be employed on board in a variety of roles which are not directly associated with marine navigation (as croupiers or entertainers on a cruise ship for example) but their ship should be engaged in a voyage which would differentiate them from taking a ‘fishing trip’ for example. Doumbia-Henry describes some of the provisions of ILO Convention No. 185 stating that:
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Piccinno, Luisa. "The Economic Structure of Maritime Trade Calling at the Port of Genoa Through the Analysis of General Average Data (Sixteenth–Seventeenth Centuries)." In General Average and Risk Management in Medieval and Early Modern Maritime Business, 297–334. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-04118-1_11.

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AbstractThis essay will discuss the preliminary results emerging from data extrapolated from General Average (GA) procedures in Genoa, between the last decade of the sixteenth century and the 1640s. The wealth of data provided by GA procedures compensates for some of the gaps in quantitative data which have held back research on the local maritime economy. Methodologically, this essay further develops the insights of Giuseppe Felloni’s work on GA’s potential for economic analysis. The rich documentation produced during GA procedures, from the original report (testimoniale) to the final apportioning of costs (calculus), provides details for typology of vessel, provenance, route, flag and cargo. This data sheds new light on Mediterranean maritime trade during a fundamental period of structural change, characterised by the emergence of new protagonists and the creation of new equilibria.
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Polyvoda, Oksana, and Vladyslav Polyvoda. "Mathematical Model of Preparing Process of Bulk Cargo for Transportation by Vessel." In Lecture Notes in Data Engineering, Computational Intelligence, and Decision Making, 42–60. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16203-9_3.

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Deng, Zhong-Shan, and Jing Liu. "Monte Carlo Simulation of the Effects of Large Blood Vessels During Hyperthermia." In Computational and Information Science, 437–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30497-5_68.

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Acosta Lopera, Oscar D., Kazuo Nishimoto, and Jairo H. Cabrera Tovar. "Hydrodynamic Analysis of Inland Self-propelled Vessel for Cargo Transportation in the Magdalena River." In Proceeding of the VI International Ship Design & Naval Engineering Congress (CIDIN) and XXVI Pan-American Congress of Naval Engineering, Maritime Transportation and Port Engineering (COPINAVAL), 134–52. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35963-8_12.

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Florin, Charles, Nikos Paragios, and Jim Williams. "Globally Optimal Active Contours, Sequential Monte Carlo and On-Line Learning for Vessel Segmentation." In Computer Vision – ECCV 2006, 476–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11744078_37.

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Conference papers on the topic "Cargo vessels"

1

Andersson, Peter, Anders Alexandersson, and Robert Johansson. "Cargo Securing and Cargo Shift On Passenger/Roro Vessels." In The Safety of Passenger Ro-Ro Vessels. RINA, 1996. http://dx.doi.org/10.3940/rina.roro.1996.2.

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Choi, Kyungsik, Seong-Yeob Jeong, and Jong-Ho Nam. "Ice Load Prediction Formulas for Icebreaking Cargo Vessels." In SNAME 8th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2008. http://dx.doi.org/10.5957/icetech-2008-162.

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The ice load prediction for the icebreaking cargo vessels is discussed. Ice load includes the global ice loads and local ice pressures on the hull of the icebreaking vessels. The extreme ice loads are expected from large ice features and these loads are most likely to be concentrated at the bow area of a ship. The available ice load data from model tests and also from full-scale sea trials are collected and analyzed in the same format according to various ship-ice interaction processes. The ice load prediction formulas are compared with the measured data. Based on collected test data, semi-empirical ice load prediction formulas are recommended for large sized icebreaking cargo vessels.
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Chua, Kie Hian, Yali Zhang, and Dimitrios Konovessis. "Cargo Liquefaction and Influence on Ship Stability." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96448.

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Abstract Fine grain solid bulk cargo with “sufficient” moisture content may undergo liquefaction during a voyage, posing a danger to the bulk carrier and the crew on-board due to its potential to shift and adversely affect the vessel’s stability. Between the years 2005 to 2017, it is believed that at least 21 bulk carriers have been lost due to cargo liquefaction. Most of these vessels are of 60,000 deadweight tonnes (DWT) and below, i.e. belonging to the “handysize” class. At the present moment, liquefaction is thought to occur through either conventional liquefaction or dynamic separation. In the former, wet granular cargo particles are rearranged through cyclic loads induced by the ship’s motions, resulting in overall compaction of the cargo and a corresponding increase in pore pressure between the particle grains. Shear resistance of the cargo pile decreases and movement of significant portions of the liquefied cargo material may occur, which in turn poses significant risks for the vessel. In dynamic separation, a pile of wet granular cargo particles undergo progressive transformation through intermediate stages, where the moisture separates from the cargo pile, forming fluid slurry comprising water and entrained particles that would be denser than water perched on top of a drier, compacted particle pile. The slurry will slosh with the vessel motion adversely influencing the stability of the vessel. Compared to conventional liquefaction, the compacted particle pile is drier and less susceptible to shift under vessel movement. In this study, a numerical modelling to assess the impact of the two cargo liquefaction mechanisms on a vessel’s stability is undertaken. The numerical models will be described and the results will be discussed.
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Choi, Kyungsik, Jong-Ho Nam, and Seong-Yeob Jeong. "Arctic Sea Route Transit Analysis for Large Cargo Vessels." In SNAME 9th International Conference and Exhibition on Performance of Ships and Structures in Ice. SNAME, 2010. http://dx.doi.org/10.5957/icetech-2010-173.

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The purpose of this ice transit analysis is to determine the optimum sea routes and to estimate the operation cost, transit hour, and average speed for large cargo vessels navigating in the Arctic Sea Route prior to an actual deployment of commercial cargo vessel fleet. Four different Arctic ships, such as two bulk carriers, an LNG carrier and a crude oil tanker, are selected for Northern Sea Route transit simulation. Ice and environmental information such as sea ice thickness and concentration, wind direction and wave height are gathered and their probabilistic distribution are used to carry out a transit simulation. In an ice-covered sea, the size and distribution of sea ice significantly restrict the operation of ships and the icebreaker assistance may be an important decision for keeping the speed and direction as planned. Information of multi-year ridge formation and water depth along the Northern Sea Route are added in this analysis. After the selection of optimum sea route, total transit distances and hours, average speed, cost for icebreaker escort and total operation cost are calculated in sequence for each vessel.
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Paulick, Nick, and Tom Rogers. "Section XII Transport Tank Code Preview: Cargo Tanks." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71205.

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ASME Section XII Transport Tank Code will have an impact on the regulations related to the construction and continued service of highway cargo tanks used in the transportation of dangerous goods. Modal Appendix 1 of this code specifically addresses these transport tanks, and is intended to replace a large portion of the DOT regulations currently governing how they are built and serviced. This paper presents a preview of Modal Appendix 1, one of the mandatory appendices related to cargo tanks, and how these changes will affect manufacturers and repair shops.
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Selvik, Ørjan, Tor Einar Berg, and Dariusz Eirik Fathi. "Drifting Paths of Disabled Vessels." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41921.

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Many maritime emergency situations involve drifting vessels, and tools to predict drifting patterns have been developed by meteorology institutes, class societies and research companies. It is important to be able to predict a vessel’s drifting path and to estimate when it will drift into waters where grounding is a possible outcome. Such a prediction tool would provide valuable input to the planning of an emergency towing operation to prevent the vessel from grounding or to reduce the impact of the grounding. In this paper we present the outcomes of a study that investigated the drifting pattern of a vessel with an engine shut-down in the Barents Sea. As part of the ongoing A-Lex project [1], MARINTEK has prepared a VeSim [2] model to investigate the drifting path of a cargo vessel. The outcomes of the study will be used to draw up a technical specification for work to be done to develop an improved ship drift model in Norwegian Meteorological Institute’s (MET Norway’s, [3]) new Halo platform [4]. An improved model will be of great help to those planning emergency towing operations and for positioning of emergency preparedness units with respect to the traffic situation (especially tracks of vessels carrying dangerous goods) and weather forecasts.
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Barretto, Marcos Ribeiro Pereira, Roberto Edward Cruz, Andre Bergsten Mendes, Michel Povlovitsch Seixas, Claudio Barbieri da Cunha, and Marco Antonio Brinati. "A Decision Support System for Allocating General Cargo in Platform Supply Vessels." In OTC Brasil. Offshore Technology Conference, 2013. http://dx.doi.org/10.4043/24433-ms.

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Rocha, Thiago P., Raul Dotta, Daniel P. Vieira, Pedro C. de Mello, Edgard B. Malta, and Kazuo Nishimoto. "Experimental Investigation on the Influence of Liquid Cargo in Floating Vessels Motions." In OTC Brasil. Offshore Technology Conference, 2015. http://dx.doi.org/10.4043/26203-ms.

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Yu, Xiaochuan, Chandan Lakhotia, and Jeffrey M. Falzarano. "Development of a Multi-Body Vessel Dynamics Simulation Tool." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-80111.

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Multi-body dynamics is important in many fields of engineering. For the at-sea transfer of cargo between ships multi-body dynamics is particularly important. There are several methods of transferring solid cargo between vessels and these include by crane or by ramp. Each method is extremely sensitive to the relative motions between the various vessels. An accurate modeling of the vessels’ motions is critical in determining limiting sea state conditions and in suggesting how to improve the given system. There are various levels of approximation which are commonly employed to model vessel hydrodynamics and we hope to eventually determine what level of approximation is appropriate for a given situation. In this paper, we will compare the effects of considering as well as ignoring the multi-body hydrodynamic interactions using a constant coefficients approximation to the time domain radiated wave force.
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Shinoda, Takeshi, and Koji Uru. "Establishment of Risk Assessment Model for Ship Collision using Applied Bayesian Network -Collision Accidents between Fishing vessels and Cargo Vessels -." In SNAME 5th World Maritime Technology Conference. SNAME, 2015. http://dx.doi.org/10.5957/wmtc-2015-190.

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In this study, a risk assessment model for ship collisions is proposed according to the guidelines for Formal Safety Assessment (FSA) approved by IMO in 2002. The analysis is applied to ship collisions between fishing and cargo vessels owing to their high frequency and enormous damage. Bayesian network theory for risk analysis has been applied to reveal a causal relationship on human factors. A trial evaluation of Risk Control Options (RCOs) for collisions is attempted through the calculation of the dominance index. Finally, a trial cost benefit analysis for RCOs is considered through Gross Cost of Averting Fatality (GCAF) in FSA.
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Reports on the topic "Cargo vessels"

1

Bain, Rachel, Richard Styles, and Jared Lopes. Ship-induced waves at Tybee Island, Georgia. Engineer Research and Development Center (U.S.), December 2022. http://dx.doi.org/10.21079/11681/46140.

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Commercial vessels transiting the Savannah entrance channel intermittently generate large wake events at Tybee Island, Georgia, creating a potential hazard for beachgoers. However, not all commercial vessels generate large wakes, and the relationship between vessel dimensions, operating conditions, wake height, and drawdown magnitude is unclear. This study evaluates bathymetric data, high-frequency wave and vessel wake measurements, and broadcast vessel identification over a 4-month period with the goal of providing a quantitative characterization of vessel wake conditions at Tybee Island. Data from 1,386 cargo vessel passages and 202 tanker passages indicate that vessel dimensions (length and beam) are positively correlated with drawdown magnitude and secondary wake height, although large vessels do not consistently generate large wakes. Container ships, which tended to travel faster than tankers, corresponded to the largest wakes in the dataset. A further hypothesis is that tidally modulated energy dissipation may favor smaller vessel wake uprush at low tide and larger uprush at high tide, but this idea cannot be confirmed without additional measurements to quantify nonlinear wave propagation on the beach face. Based on the collected data, the study concludes with four recommendations for reducing risk to beachgoers.
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Johnston, Morgan, Sung-Chan Kim, and Mary Allison. Mobile Harbor, Alabama navigation study : ship simulation report. Engineer Research and Development Center (U.S.), October 2021. http://dx.doi.org/10.21079/11681/42300.

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Mobile Bay is a large estuary located in the southwest corner of Alabama, which connects to the Gulf of Mexico. Mobile Harbor contains the only port in the state that supports ocean-going vessels. Some of the larger vessels calling on the port experience transit delays and limited cargo capacity, so a study was conducted by the US Army Corps of Engineers, Mobile District (CESAM), and the Alabama State Port Authority to investigate channel improvements. In 2017, the US Army Engineer Research and Development Center (ERDC) assisted CESAM in screening proposed deepening and widening alternatives in Mobile Bay by completing a Feasibility Level Ship Simulation (FLSS) study using the ERDC Ship/Tow Simulator. These lower-resolution databases from the FLSS study were used as a foundation to complete a more robust navigation study in 2020 to test the proposed modifications to Mobile Harbor. During this study, three main areas were focused on: a bend easing, a passing lane, and a turning basin. Testing of the proposed design was evaluated over the course of 2 weeks with eight pilots. Assessment of the proposed modifications was accomplished through analysis of ship simulations completed by experienced local pilots, discussions, track plots, run sheets, and final pilot surveys.
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Bain, Rachel, David Young, Marin Kress, Katherine Chambers, and Brandan Scully. US port connectivity and ramifications for maintenance of South Atlantic Division ports. Engineer Research and Development Center (U.S.), January 2023. http://dx.doi.org/10.21079/11681/46385.

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This study utilized automatic identification system (AIS) data to quantify vessel traffic patterns within a predominantly US port network from 1 January 2009 to 31 December 2020, with the methods validated using independent data sets collected between 1 January 2015 and 31 December 2019. The analysis focused on South Atlantic Division (SAD) ports. AIS-derived data characterized individual ports’ traffic and port-to-port connectivity for the network. With foreign vessel entrances and clearances (E&C) data, the AIS-reported vessel characteristics enabled calculation of ships’ physical volume, which was a reasonable proxy for tonnage at many SAD ports. The PageRank algorithm was then applied to port-to-port traffic, revealing how individual ports participate in cargo movement through the network. PageRank scores also provided insight into the maritime supply chain beyond traditional traffic metrics. For example, many East Coast SAD ports ranked higher by PageRank than by raw tonnage. Because of the supply chain implications of shared vessel traffic, PageRank scores can augment tonnage metrics when prioritizing channel and infrastructure maintenance. Vessel volume, port-to-port connectivity, and PageRank scores reveal maritime supply chain resilience by identifying alternative destinations for cargo bound for disrupted ports, robustness across supply chains, and the effects of seasonality and disruptions.
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Mekong Vessel Inspection Scheme. Vientiane, Lao PDR: Mekong River Commission Secretariat, October 2013. http://dx.doi.org/10.52107/mrc.ajgfzl.

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The report provides a checklist that can be used to inspect vessels that are intended for the transport of general cargo and containers, including the carriage of packaged dangerous goods and solid dangerous goods in bulk, as well as tanker vessels.
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