Academic literature on the topic 'Of Naval Architecture and Marine Engineering'

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Journal articles on the topic "Of Naval Architecture and Marine Engineering"

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Ray, T., R. P. Gokarn, and O. P. Sha. "Neural network applications in naval architecture and marine engineering." Artificial Intelligence in Engineering 10, no. 3 (August 1996): 213–26. http://dx.doi.org/10.1016/0954-1810(95)00030-5.

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Sharma, Bhupendra Kumar. "Comment on "Induced magnetic field with radiating fluid over a porous vertical plate: Analytical study" by Sahin Ahmed [Journal of Naval Architecture and Marine Engineering 7(2010), 83-94]." Journal of Naval Architecture and Marine Engineering 9, no. 1 (June 20, 2012): T1—T2. http://dx.doi.org/10.3329/jname.v9i1.10579.

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Altosole, M., and Massimo Figari. "Effective simple methods for numerical modelling of marine engines in ship propulsion control systems design." Journal of Naval Architecture and Marine Engineering 8, no. 2 (December 30, 2011): 129–47. http://dx.doi.org/10.3329/jname.v8i2.7366.

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In the last year, the Department of Naval Architecture and Marine Engineering of Genoa University (now Department of Naval Architecture, Marine Technology and Electrical Engineering) collaborated to the design of the propulsion automation of two different naval vessels; within these projects the authors developed different ship propulsion simulators used to design and test the propulsion control schemes. In these time-domain simulators, each propulsion component is represented by a specific mathematical model, mainly based on algebraic and differential equations. One of the key aspects of the propulsion simulation is the engine dynamics. This problem in principle can be dealt with models based on thermodynamic principles, which are able to represent in detail the behaviour of many variables of interest (engine power and speed, air and gas pressures, temperatures, stresses, etc.). However, thermodynamic models are often characterized by a long computation-time and moreover their development usually requires the knowledge of specific engine information not always available. It is generally preferable to adopt simpler simulation models, for the development of which, very few kinds of information are necessary. In fact, for the rapid prototyping of control schemes, it is generally more important to model the whole plant (in a relatively coarse way) rather than the detailed model of some components. This paper deals with simple mathematical methods, able to represent the engine power or torque only, but they can be suitably applied to many types of marine engines in a straightforward way. The proposed simulation approaches derived from the authors’ experience, gained during their activity in the marine simulation field, and they are particularly suitable for a fast prototyping of the marine propulsion control systems. The validation process of these particular models, regarding a Diesel engine, a marine gas turbine and an electric motor, is illustrated based on the sea trials data and engine manufacturers’ data. Keywords: Dynamic simulation; marine engines performance; gas turbine; propulsion control. doi: http://dx.doi.org/10.3329/jname.v8i2.7366 Journal of Naval Architecture and Marine Engineering 8(2011) 129-147
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Lamley, Rachel A. "A Model for an Engineering Education." Marine Technology and SNAME News 33, no. 02 (April 1, 1996): 119–21. http://dx.doi.org/10.5957/mt1.1996.33.2.119.

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College students have the impression that education stops at the door of the classroom. However, in today's technically based society it is difficult for a student to master all the skills required of their profession in the classroom. Valuable experience can be gained outside the classroom through various work study programs. These programs allow students to work on realistic projects rather than on simplified classroom problems. This paper looks at various naval architecture and marine engineering related work study programs and a case example.
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Bunch, Howard M. "Catalogue of Ship Producibility Improvement Concepts." Journal of Ship Production 11, no. 03 (August 1, 1995): 203–7. http://dx.doi.org/10.5957/jsp.1995.11.3.203.

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This catalogue is the product of a multi-year project to organize information relating to the improved producibility of Navy ships. This information is largely of a qualitative nature, and deals with all aspects of ship design and construction. Individual suggestions are presented in the form of very short abstracts. These are organized according to the Navy ship Work Breakdown Structure (WBS) coding system. The catalogue is intended to provide a ready reference of producibility information for the student and naval designer. This report has been prepared under the Memorandum of Understanding to Support Program Development in Naval Architecture and Marine Engineering between the United States Naval Sea Systems Command and the University of Michigan. It has been funded by an Office of Naval Research Grant (Number N00014-90-J-1404).
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Kaklis, P. D. "Editorial: Special issue on: Parametric CAD modeling for Naval Architecture, Ocean & Marine Engineering (NAOME)." Ocean Engineering 223 (March 2021): 108655. http://dx.doi.org/10.1016/j.oceaneng.2021.108655.

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INOZU, BAHADIR, and BILAL M. AYYUB. "Reliability, Maintenance and Risk Assessment in Naval Architecture and Marine Engineering Education in the US." European Journal of Engineering Education 24, no. 3 (September 1999): 333–38. http://dx.doi.org/10.1080/03043799908923567.

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Ridwan, Mohd, and Eko Yulianto. "KOMPETENSI PROGRAM STUDI DIPLOMA TEKNIK PERKAPALAN DALAM INDUSTRI MARITIM INDONESIA." Gema Teknologi 16, no. 1 (October 23, 2010): 16. http://dx.doi.org/10.14710/gt.v16i1.319.

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Mohd Ridwan, Eko Yulianto, in paper competency of naval architecture diploma program on Indonesian maritime industry explain that Shipbuilding engineering professionals is part of the leading maritime industry is expected to become the motor of development of national maritime fleet in the implementation of cabotage (Impres No.5, 2005), this will reduce foreign exchange spending nearly 99 trillion rupiah per year due to the use of foreign fleets, and the creation of new jobs as a supporter of the maritime industry. So the presence of workers who have competence in the field of shipbuilding (ship building, naval architecture, marine engineering enginerring and maritime transportation) is urgently needed and their capability to compete with other countries that previously controlled the sea as a source of national income should be the Indonesian government's attention. Keywords: Professional shipbuilding techniques, competency
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陈, 建平. "Research on Construction Model of Naval Architecture and Marine Engineering Subject Based on Lattice Order Method." Creative Education Studies 05, no. 01 (2017): 53–61. http://dx.doi.org/10.12677/ces.2017.51009.

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Parsons, Michael G., and Klaus-Peter Beier. "Microcomputer Software for Computer-Aided Ship Design." Marine Technology and SNAME News 24, no. 03 (July 1, 1987): 246–64. http://dx.doi.org/10.5957/mt1.1987.24.3.246.

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The rapid evolution of the microcomputer has changed the software needs of today's naval architects. The Department of Naval Architecture and Marine Engineering at The University of Michigan has been a leader in the application of computers in ship design education. The computer environment readily available to the department's students has changed dramatically in the past few years with the evolution of the Computer-Aided Marine Design Laboratory within the department and the creation of the Computer Aided Engineering Network (CAEN) within the College of Engineering. The microcomputer facilities available to the students are briefly described. To fully integrate this capability into the department's curriculum, a coordinated suite of computer-aided ship design software has been developed for use on the Macintosh and IBM-PC/XT/AT microcomputers provided for the students. To support the use of this and other software on a wide range of computers, a portable, device-independent computer graphics subprogram package M-PLOT has been developed. The educational philosophy behind this design software and its scope, capabilities, and use in ship design education are described. Examples of the use of selected programs are presented to illustrate these capabilities. Plans for further work are outlined. The effort is well toward the goal of a complete, microcomputer-based ship design software environment.
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Dissertations / Theses on the topic "Of Naval Architecture and Marine Engineering"

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Abujaafar, Khalifa Mohamed. "Quantitative human reliability assessment in marine engineering operations." Thesis, Liverpool John Moores University, 2012. http://researchonline.ljmu.ac.uk/6115/.

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Marine engineering operations rely substantially on high degrees of automation and supervisory control. This brings new opportunities as well as the threat of erroneous human actions, which account for 80-90% of marine incidents and accidents. In this respect, shipping environments are extremely vulnerable. As a result, decision makers and stakeholders have zero tolerance for accidents and environmental damage, and require high transparency on safety issues. The aim of this research is to develop a novel quantitative Human Reliability Assessment (HRA) methodology using the Cognitive Reliability and Error Analysis Method (CREAM) in the maritime industry. This work will facilitate risk assessment of human action and its applications in marine engineering operations. The CREAM model demonstrates the dynamic impact of a context on human performance reliability through Contextual Control Model controlling modes (COCOM-CMs). CREAM human action analysis can be carried out through the core functionality of a method, a classification scheme and a cognitive model. However, CREAM has exposed certain practical limitations in its applications especially in the maritime industry, including the large interval presentation of Human Failure Probability (HFP) values and the lack of organisational factors in its classification scheme. All of these limitations stimulate the development of advanced techniques in CREAM as well as illustrate the significant gap between industrial needs and academic research. To address the above need, four phases of research study are proposed. In the first phase, the adequacy of organisation, one of the key Common Performance Conditions (CPCs) in CREAM, is expanded by identifying the associated Performance Influencing Factors (PIFs) and sub-PIFs in a Bayesian Network (BN) for realising the rational quantification of its assessment. In the second phase, the uncertainty treatment methods' BN, Fuzzy Rule Base (FRB) , Fuzzy Set (FS) theory are used to develop new models and techniques' that enable users to quantify HFP and facilitate the identification of possible initiating events or root causes of erroneous human action in marine engineering operations. In the third phase, the uncertainty treatment method's Evidential Reasoning (ER) is used in correlation with the second phase's developed new models and techniques to produce the solutions to conducting quantitative HRA in conditions in which data is unavailable, incomplete or ill-defined. In the fourth phase, the CREAM's prospective assessment and retrospective analysis models are integrated by using the established Multiple Criteria Decision Making (MCDM) method based on, the combination of Analytical Hierarchical Process (AHP), entropy analysis and Technique for Order Preference by Similarity to the Ideal Solution (TOPSIS). These enable Decision Makers (DMs) to select the best developed Risk Control Option (RCO) in reducing HFP values. The developed methodology addresses human actions in marine engineering operations with the significant potential of reducing HFP, promoting safety culture and facilitating the current Safety Management System (SMS) and maritime regulative frameworks. Consequently, the resilience of marine engineering operations can be further strengthened and appreciated by industrial stakeholders through addressing the requirements of more safety management attention at all levels. Finally, several real case studies are investigated to show end users tangible benefits of the developed models, such as the reduction of the HFPs and optimisation of risk control resources, while validating the algorithms, models, and methods developed in this thesis.
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Townsend, Nicholas Charles. "Influencing and influences of marine vessel motions." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/207697/.

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With the aim of understanding and improving the sea keeping performance of marine craft the research addresses methods of influencing the motions of marine craft by stabilisation mechanisms, and identifying the influences on RIB motions. The two research projects, that attracted industrial support, represent two separate industrial interests concerned with influencing and understanding the influences on the sea keeping performance of marine craft. The first project, focused on developing a motion control system, for motion reduction and/or control of marine structures operating in the free-surface. The aim was to develop a system that would replace, eliminate or complement the use of current devices, in order to improve passenger comfort, overcoming the drawbacks of external hydrodynamic based systems. The research developed a new motion control system and theoretical and physical experimental studies were conducted. The second project, focused on identifying the influence of a RIB tube and the properties of the tube, on the dynamic motions of a RIB, including the effect of the motions on the occupants. Theoretical and experimental studies at full and model scale were conducted.
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Mendonça, Sandro. "The evolution of new combinations : drivers of British maritime engineering competitiveness during the nineteenth century." Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/39708/.

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This work is an attempt to explore early British steamship innovation during the 19th century from the point of view of innovation studies. The proposed analytical framework draws on neo-Schumpeterian and evolutionary economics for understanding the patterns and factors behind the phenomenon of technical change in the capital good under analysis. The thesis aims at filling a gap in the maritime economic and technological history literature, namely the issues connected to the process through which modern (mechanically-propelled, iron-hulled, screw-driven) ocean transportation emerged. Two inter-related research questions are addressed: how and why did steamships evolve in the course of the 19th century? In other words, the present research focuses on describing the dynamics of technological evolution and on identifying the key drivers of those developments. While the thesis includes a review of the relevant literature (Part I), the main work consists of original empirical research (Parts II and III). The bulk of this work primarily rests on the compilation of two new main bodies of quantitative and qualitative evidence. First, a previously unpublished dataset on the population and characteristics of steamers is used to measure the rate and direction of technical change in steamers. Second, previously unpublished archival material is used to reconstruct the innovation processes of marine engineers and naval architects and the civil society arrangements around them. The results suggest a number of stylised facts and institutional variables that have been subject to little discussion in the extant literature. On one hand, time-series and other statistical analyses suggest a technological “take-off” of steamship performance by the mid-19th century. This turning point, which was the outcome of a complex but rapid process of structural reconfiguration (the transition from wood-paddle to iron-screw as the new “dominant design”), occurred between the late 1830s and the late 1840s particularly among cargo traders and unsubsidised packets. On the other hand, documentary evidence shows that such technological breakthroughs were preceded and supported by a specific set of institutional innovations. These included the emergence of voluntary engineering associations, technical mass media and a not-for-profit ship classification society within the British national system of innovation. The thesis argues that the process of revolutionary technological innovation leading to the economically efficient long-haul merchant steamer cannot be separated from the rise of a vibrant interactive environment promoting learning, knowledge integration and technological accumulation, which may be called a “technological public sphere”.
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Anil, Kivanc Ali. "Multi-criteria analysis in Naval Ship Design /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Mar%5FAnil.pdf.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, March 2005.
Thesis Advisor(s): Fotis Papoulias, Roman B. Statnikov. Includes bibliographical references (p. 241). Also available online.
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Cunningham, Andrew Donald. "Monte Carlo simulation in the marine environment." Thesis, Liverpool John Moores University, 2011. http://researchonline.ljmu.ac.uk/6001/.

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Veldhuis, Ivo. "Application of hydrogen marine systems in high-speed sea container transport." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/51284/.

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Conventional marine fuels have always limited the endurance of high-speed ships leading to fast but inefficient cargo ships. This research considers the fuel weight barrier in high-speed ship design and the use of hydrogen as a marine fuel to overcome this barrier. Simultaneously, it is now accepted that environmental pollution from ships, particularly large containerships, contributes to climate change. Hydrogen marine utilization provides a solution for both. As common to other hydrogen research the fuel system spans production to utilization. This hydrogen marine system utilizes an established production method to obtain hydrogen from natural gas through steam methane reformation. To achieve an acceptable storage volume meeting the typical highspeed ship dimensions the hydrogen also requires liquefaction. The hydrogen is then converted onboard into shaft power via combustion in aero-derivative gas turbines. This research establishes the necessary system components spanning both onshore and ship components. The novelty of the research has resulted in new design tools. Research into large hydrogen transport applications is not new and a substantial body of research is available from passenger aviation studies performed during the 1980s and 1990s. Additionally, a more current body of research is available describing hydrogen utilization in large gas turbines for energy and oil/gas industries. This combined research provides the characteristics of the onboard hydrogen system of a high-speed foil-assisted containership. This ship is capable of transporting 600 industry standard 20’ containers on long-haul ocean routes, i.e. 5000 nautical miles, at a speed of 64 knots (118.5 km/hr). Such ship performance is not feasible with conventional marine fuels. The design is complex involving a combination of buoyancy and dynamic lift and two distinct operational modes at floating and dynamic draughts. Research involving this ship configuration is included here in conjuction with suitable design methodologies. Besides technical feasibility, economic feasibility of this containership has also been investigated based around the unit transport price required to recoup costs and achieve zero net present value. Such analysis identified that the containership has higher minimum freight rates than conventional containerships but substantially lower rates than aviation cargo. Due to its high-speed and improved endurance it can compete with aviation on transport time and price. Economic review also identified that shorter container door-to-door times are now demanded by the consumer production industry and this hydrogen marine container transport system meets this demand.
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Boyd, Stephen William. "Strength and durability of steel to composite joints for marine application." Thesis, University of Southampton, 2006. https://eprints.soton.ac.uk/142615/.

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This thesis deals with the assessment of the strength and durability of steel to composite joints for composite superstructures on ships where reduced weight is a design driver. The purpose of the work is to understand the long-term performance characteristics of hybrid connections to allow for improvements to the design of hybrid structures. Two joints were investigated in the present research. The first was a full-scale connection suitable for application in superstructures of marine vehicles, specifically a helicopter hanger on a naval vessel. The second was a generic steel/composite connection for testing performance after hygrothermal ageing. The strength and durability of the full-scale connection were examined in compression, the loading scenario representative of in-service conditions. The results indicated that the static and fatigue performance were in excess of the realistic in-service loading conditions. Failure for both static and fatigue tests were comparable and therefore good confidence in the prediction of the joint’s failure was achieved. The generic hybrid connection was artificially aged through immersion in water. The results indicated that there was no significant reduction in the performance of the joint in either static tension or bending. The numerical modelling highlighted a number of issues. Due to the geometry of the joint high stress concentration factors were observed in some locations. It is in these areas that failure of the joint was predicted in the numerical modelling. Similar results were obtained experimentally and this gave confidence in the modelling of the joint. Numerical parametric and optimisation studies were conducted to assess the influence of the joint geometry on performance characteristics obtained from both the experimental and numerical studies. This highlighted that improvements to the performance of the joint could be obtained through geometric changes alone.
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Lillis, Julia A. "Analysis of the applicability of aircraft vulnerability assessment and reduction techniques to small surface craft." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Jun%5FLillis.pdf.

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Price, David J. "Comparison of approaches for determining the failure of stiffened cylindrical shells /." Springfield, Va. : Available from National Technical Information Service, 2002. http://handle.dtic.mil/100.2/ADA405710.

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Thesis (M.S. in Naval Architecture and Marine Engineering and M.S. in Mechanical Engineering)--Massachusetts Institute of Technology, 2002.
Includes bibliographical references (p. 57). Also available online.
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Pham, Xuan Phuc. "Green water and loading on high speed containerships." Thesis, Connect to e-thesis, 2008. http://theses.gla.ac.uk/249/.

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Thesis (Ph.D.) - University of Glasgow, 2008.
Ph.D. thesis submitted to the Department of Naval Architecture and Marine Engineering, Faculty of Engineering, University of Glasgow, 2008. Includes bibliographical references. Print copy also available.
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Books on the topic "Of Naval Architecture and Marine Engineering"

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Baxter, Brian. Naval architecture. Southampton: Warsash Nautical Bookshop, 1992.

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Lun ji gai lun: Marine engineering. Taibei Shi: Wu nan tu shu chu ban gu fen you xian gong si, 2009.

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(Firm), Knovel, ed. The maritime engineering reference book: A guide to ship design, construction and operation. Amsterdam: Butterworth-Heinemann, 2008.

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Bai, Yong. Marine structural design. Amsterdam: Elsevier, 2003.

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Vorus, William S. Vibration. Jersey City, N.J: Society of Naval Architects and Marine Engineers, 2010.

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Randolph, Paulling J., ed. Vibrations. Jersey City, N.J: Society of Naval Architects and Marine Engineers, 2010.

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Ships: From the Archives of Harland & Wolff the Builders of the Titanic. London, UK: Chartwell Books/PRC Publishing, 1998.

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Fox, William A., and Harry Benford. A half century of maritime technology, 1943-1993. Jersey City, N.J: Society of Naval Architects and Marine Engineers, 1993.

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Ship Technology and Research (STAR) Symposium (11th 1986 Portland, Or.). Proceedings. New York, N.Y. (One World Trade Ctr., Suite 1369, New York 10048): Society of Naval Architects and Marine Engineers, 1986.

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Vorus, William S. Vibration. Jersey City, N.J: Society of Naval Architects and Marine Engineers, 2010.

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Book chapters on the topic "Of Naval Architecture and Marine Engineering"

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Cheng, Zekun, Lei Gong, and Chen Li. "Marine Structures and Other Facilities." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 227–76. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_8.

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Cheng, Zekun, Lei Gong, and Chen Li. "Construction Practice of Cruise Port Construction." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 277–316. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_9.

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Cheng, Zekun, Lei Gong, and Chen Li. "Cruise Terminal Process." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 159–93. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_6.

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Cheng, Zekun, Lei Gong, and Chen Li. "Terminal Buliding." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 195–225. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_7.

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Cheng, Zekun, Lei Gong, and Chen Li. "Site Selection of Cruise Terminals." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 107–26. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_4.

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Cheng, Zekun, Lei Gong, and Chen Li. "General Layout of Cruise Terminals." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 127–58. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_5.

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Cheng, Zekun, Lei Gong, and Chen Li. "Basic Situation of Global Cruise Ports." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 27–106. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_3.

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Cheng, Zekun, Lei Gong, and Chen Li. "Introduction." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 1–12. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_1.

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Cheng, Zekun, Lei Gong, and Chen Li. "Cruise." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 13–26. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5428-5_2.

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Chacón, Víctor Hugo. "Introduction." In Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping, 1–13. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66002-8_1.

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Conference papers on the topic "Of Naval Architecture and Marine Engineering"

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Dinh, T. Q., T. M. N. Bui, J. Marco, and C. Watts. "Optimal Control and Real-Time Simulation of Hybrid Marine Power Plants." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.041.

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With significantly increasing concerns about greenhouse effects and sustainable economy, the marine industry presents great potential for reducing its environmental impact. Recent developments in power electronics and hybridisation technologies create new opportunities for innovative marine power plants which utilize both traditional diesel generators and energy storage like batteries and/or supercapacitors as the power sources. However, power management of such complex systems in order to achieve the best efficiency becomes one of the major challenges. Acknowledging this importance, this research aims to develop an optimal control strategy (OCS) for hybrid marine power plants. First, architecture of the researched marine power plant is briefly discussed and a simple plant model is presented. The generator can be used to charge the batteries when the ship works with low power demands. Conversely, this battery energy can be used as an additional power source to drive the propulsion or assist the generators when necessary. In addition, energy losses through braking can be recuperated and stored in the battery for later use. Second, the OCS is developed based on equivalent fuel consumption minimisation (EFCM) approach to manage efficiently the power flow between the power sources. This helps the generators to work at the optimal operating conditions, conserving fuel and lowering emissions. In principle, the EFCM is based on the simple concept that discharging the battery at present is equivalent to a fuel burn in the future and vice-versa and, is suitable for real-time implementation. However, instantaneously regulating the power sources’ demands could affect the system stability as well as the lifetime of the components. To overcome this drawback and to achieve smooth energy management, the OCS is designed with a number of penalty factors by considering carefully the system states, such as generators’ fuel consumption and dynamics (stop/start and cranking behaviour), battery state of charge and power demands. Moreover, adaptive energy conversion factors are designed using artificial intelligence and integrated in the OCS design to improve the management performance. The system therefore is capable of operating in the highest fuel economy zone and without sacrificing the overall performance. Furthermore, a real-time simulation platform has been developed for the future investigation of the control logic. The effectiveness of the proposed OCS is then verified through numerical simulations with a number of test cases.
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Dobbins, D. G. "The physical integration of a significant marine engineering package into the T23 Frigate." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.007.

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The Type 23 Frigate (T23) has been extended in-service well beyond its initial design life of 18 years, with some ships due to be over 35 years old when they leave service. To ensure the vessels remain effective and available a T23 Life Extension (LIFEX) programme was set up to meet this revised End of Life (EOL). A significant element of this LIFEX and the focus of this paper is PGMU (Power Generation and MCAS Update). The aim of PGMU is to restore electrical power margins and to overcome equipment obsolescence. This requirement was set with the obvious constraint that new equipment must integrate with the existing ship and it’s supporting systems without adversely affecting key operational characteristics. Considered an Alteration and Addition (AandA) but the largest the T23 has ever seen, the project has encompassed the entire cradle to birth cycle and equipment is currently being fitted into the first of class with a plan to achieve sea trials in Q2 2019. PGMU will replace the most critical assets of a warship; its power generation system. It replaces the 4 diesel generators with higher power units, the replacement of the 2 motor generator sets that supply the 440v ship services, upgrades the switchboards as well as the Machinery Controls and Surveillance System (MCAS). Challenges have come in the form of structural limitations; stability management; signature management; physical integration and the re-designing of a legacy platform to new standards. This paper builds on one that I presented at INEC 2016: “Facing the challenges of integration and physical constraints when replacing major equipment in old platforms”. This edition will cover issues that have arisen in the later stages of the design and validation through into the integration for First of Class (FoC); HMS Richmond. It will concentrate on the naval architectural aspects of the project and will consider how they were managed whilst offering an overview of some of the key learning from experience (LFE) that has been gained.
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Benatmane, M., and B. Salter. "Naval Hybrid Power Take-Off and Power Take-In – Lessons Learnt and Future Advances." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.062.

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With the ever tightening of budgets and legislation, new vessel builds are facing tough times. The future maritime industry requires more efficient vessels to minimise ship operational costs with cleaner technologies that meet stringent environment regulations, reduce greenhouse gas emissions, specifically carbon emissions. Emissions reduction continues to be high on the agenda for the marine industry, it is responsible for about 2.5 percent of global greenhouse emissions1 and is under great pressure to reduce its environmental impact. With pressure comes the opportunity to incentivize innovation, developments and implementation of energy efficient measures, both design and operational. Naval propulsion systems are no different from other industries, and the industry is exploring ways to optimise propulsion and electrical power generation systems architecture for better performance and efficiency. Electric technology plays a leading role. The paper will: Provide a brief overview about the hybrid propulsion concept, with key electrical, mechanical qualities and issues. Describe different designs configurations and performances of hybrid propulsion systems from demonstrated and operational systems in the commercial and naval world. Cover the lessons learnt in technologies and controls used on such systems. Examine future architectures including energy storage and explore the benefits and the flexibility these can bringto the hybrid propulsion sphere.
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Branch, David, and John Wainwright. "Development and Qualification of the Marine Trent MT30 for Next Generation Naval Platforms." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27511.

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Rolls-Royce has recently developed a new aero-derivative gas turbine for Naval Warship Applications; - the Trent based MT30 has been delivered for both US Navy DD(X) Integrated Power System (IPS) Engineering Development Model (EDM) generator set and Littoral Combat Ship (LCS) mechanical drive applications. The MT30 generator set for the DD(X) EDM land based demonstrator has run successfully in the US Navy’s facility in Philadelphia. The MT30 mechanical drive gas turbine module (GTM) will begin testing in the first Lockheed Martin LCS vessel, USS Freedom, in early 2007. This paper will describe the MT30 powerplant architecture, heritage and design features and will describe some of the major technical challenges overcome during the development and qualification programs. Initial experiences of the engine in its two applications will be described, together with future plans.
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Skiba, Christopher, Richard Boutwell, and William Boze. "Reaching Out to the Future Generation of Shipbuilders and Shipbuilding Leaders." In SNAME Maritime Convention. SNAME, 2008. http://dx.doi.org/10.5957/smc-2008-p14.

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The Office of Naval Research recognizing the importance of education, specifically science and mathematics, embarked nearly a decade ago on their National Naval Responsibility for Naval Engineering program. Since then, academia, industry, and SNAME have increased their individual and collaborative efforts towards reaching out to students in an effort to share the excitement and opportunities available within the marine industry. Recently, in this vein, the Northrop Grumman Shipbuilding Apprentice School Chapter of the Hampton Roads SNAME chapter held a “Boat Design Competition” exposing over 240 high school students from 10 school districts (30 teams from 18 different high schools) to the excitement and knowledge needed to prepare design, construction and engineering packages using guidelines, lectures, and tutorial videos prepared by Apprentices and veteran Naval Architects. This was the first time high school students had the opportunity to compete in a head-to-head competition to design, construct, and operate the best boat relative to a number of prescribed requirements. The program also served to educate Apprentices in leadership, project management, research methods, brainstorming, naval architecture and systems engineering as well as establish a nurturing relationship between student chapter and veteran SNAME members which continues today.
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Miners, W., and H. Arikkat. "T26 PMS – Real time Control of Power Generation, Propulsion and Auxiliaries." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.040.

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The Platform Management System is a key component of a lean-manned ship. Centralised remote operation removes manpower from machinery spaces, while advanced algorithms and increased integration simplify the operators’ daily tasks enabling them to broaden their responsibilities. This inherently results in driving down costs and increasing efficiency. There are a great many benefits to increased automation, however a reliance on these systems means placing a greater focus on the up-front engineering effort required to make a safe and secure system which meets the needs of the user. Sometimes, however, requirements can evolve in early stages of a project, so it also needs to be able to adapt with a flexible design able to cope with inevitable change. Strictly following a traditional V-model lifecycle can ensure compliance against customer requirements, whilst emerging requirements and user experience factors can be overlooked. A collaborative approach involving stakeholders throughout the design lifecycle helps to reduce overall programme risk by reducing change and providing progressive assurance. Through this collaboration throughout the design process and the incorporation of innovations from outside the marine industry, the T26 PMS design has evolved into a flexible, scalable and user centric solution. The innovative solution now in place can meet a plethora of challenges, incorporating safety, security and the performance required of real-time control. Safety-accredited components are used to support emergent safety requirements, while a distributed architecture both increases resilience to battle damage and scales to system load. Human factors, often placed at a lower priority than “hard and fast” requirements, have been a key design driver, with the dichotomy between safety and operability being confronted regularly throughout the design. Following a system-of-systems approach, the development team pick a component of the PMS and take a deep-dive into the subsystem development, demonstrating the incorporation of safety, human factors and security into the design as early as possible. The paper then looks forwards to the future of the project, and the “right side of the V”, showing how a proactive approach to assurance and acceptance can help reduce overall programme risk.
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Lewis, C., and B. Salter. "Towards the Holy Grail? A Novel, Power Dense, Low Noise Permanent Magnet Motor." In 14th International Naval Engineering Conference and Exhibition. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2515-818x.2018.061.

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High power, high efficiency propulsion equipment with a high shock resilience capability that occupies the minimum volume, with a low weight and a very low noise signature is a “holy grail” of naval propulsion. Significant steps towards this goal have been made in the area of naval electric propulsion in the last 30 years, but it is hard to combine all these features in a single design since some features tend to militate against others. Solutions, therefore, require a balance between the thermal challenges of high power in a low volume and the requirement for shock proof, low signature machines. A permanent magnet propulsion motor with a patented novel cooling system designed for power density and low structureborne noise is being developed, manufactured and tested as a technology demonstrator. It is part of a programme part funded by InnovateUK under the Optimised Electric System Architecture project in partnership with the University of Nottingham and the University of Warwick. The primary market for the motor is envisaged to be naval and marine research vessels where power density and low noise is important. The motor is low speed and designed for direct mechanical coupling in the shaft line to the propeller and will be suitable for full electric or hybrid propulsion since the design is inherently scalable from relatively low powers up to those required for full electric warship propulsion. This paper describes the principles of the design and the approaches used to achieve the combination of high power density, high efficiency, high torque and low noise. It describes the thermal management approach and how the thermal behaviour of the different elements of the motor have been modelled. It also shows how advanced modelling techniques, combined with laboratory based and simple, practical testing have been used to develop the design and the manufacturing techniques required by this innovative solution. The paper also describes the testing approach used to validate the machine and its integration into a wider Direct Current or Alternating Current distribution system that could include energy storage elements. Finally, the performance of the motor is discussed along with the probable next stages in its development.
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Chatjigeorgiou, Ioannis K., Ioannis Thanos, Paraskevi Bourma, Thomas Mazarakos, and Spyros A. Mavrakos. "Mooring System and Motion Response Analysis of a Gas Import Floating Terminal in Operating and Survival Conditions." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92349.

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The present work is dealing with the quasi-static motion response analysis of a Gas Import Floating Terminal that is moored through a turret mooring system. The results of the analysis presented here is part of the work undertaken by the Division of Marine Structures, School of Naval Architecture and Marine Engineering, National Technical University of Athens (NTUA-MS), within the GIFT project that is supported by the EU (GIFT, 2005). The results concern the response of the mooring system and the associated behavior of the floating terminal under specific operating and survival conditions. In addition to the quasi-static responses, the slowly varying motions of the vessel are calculated by applying appropriate frequency domain solution techniques. Finally, some first comparisons between the numerical predictions and pertinent experimental data of physical model tests are given and discussed.
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Mabuchi, Shogo, Tatsuya Hazuku, Shin-ichi Motoda, Tomoji Takamasa, Susumu Uematsu, and Mashiro Furuya. "Study on Corrosion Control in Reactors Using Radiation Induced Surface Activation (RISA): Mechanism Behind Stainless Steel Durability Due to RISA Against Crevice Corrosion." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29633.

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This study examines a corrosion control technique for corrosion-resistant materials or of stainless steel in piping for nuclear reactors. This employs an effect of Radiation Induced Surface Activation (RISA). The experimental results revealed: (1) The mechanism behind the corrosion control proposed by the previous report was confirmed to be appropriate. This via tests that measured the amount of dissolved oxygen and iron ions, in the solution. (2) The corrosion control technique was confirmed to be useful for stainless steel with any kind of metal oxide film coating on the surface. (3) It was also shown to be useful even in actual seawater, due to biological effects, which is a far more severe environment for corrosion control than simple salt water. The corrosion control technique for corrosion-resistant material using RISA in seawater has therefore been shown to offer a significant potential for practical applications in naval architecture and marine structures.
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Kingsley, Joseph, and Matthew Stauffer. "United States Navy (USN) Integrated Power System (IPS) Testing Experience With a LM2500 Generator Set Utilizing a MicroNet Controller." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0606.

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The US Navy has been researching integrated electric propulsion systems for many years. The economic advantages of the integrated electric architecture, where power for propulsion as well as ship service are derived from a common set of generators, are well recognized and such systems are used throughout many sectors of the commercial marine industry today. In addition to the economic advantages, there are military benefits to the ship when an Integrated Power System (IPS) architecture is adopted. Those include increased reliability and survivability, reduced signatures and increased upgradeability. A full scale Land Based Engineering Site (LBES) was constructed at the Advanced Propulsion and Power Generation Test Site (APPGTS) of the Naval Surface Warfare Center, Carderock Division – Ship Systems Engineering Station (NSWCCD-SSES) in Philadelphia, Pa, to demonstrate the system architecture and feasibility of chosen technologies for a warship application. This paper will describe the IPS, test site construction, and test operational experience with a GE LM2500 engine, utilizing a Woodward Governor Company (WGC) MicroNet controller, as the prime mover for the main generator set.
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