Relevant bibliographies by topics / Ship manoeuvring simulation

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Ship manoeuvring simulation'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Ship manoeuvring simulation"

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Fang, Ming-Chung, Kun-Yuan Tsai, and Chih-Chung Fang. "A Simplified Simulation Model of Ship Navigation for Safety and Collision Avoidance in Heavy Traffic Areas." Journal of Navigation 71, no. 4 (November 29, 2017): 837–60. http://dx.doi.org/10.1017/s0373463317000923.

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Based on our previously developed ship collision avoidance steering system, this paper develops a more extensive collision avoidance decision-making system for non-uniformly moving ships. A real-time simulator based on the Six-Dimensional (6D) Manoeuvring Modelling Group (MMG) model is used to simulate the ship's motion. To validate the manoeuvring mathematical model, sea trial measurements of a container ship (C-3) have been selected. This study incorporates Nomoto's second-order model into a numerical model to calculate the turning characteristics of the ship. The manoeuvring indices of Nomoto's model are the knowledge base of the simplified ship simulation model. To verify the ship collision avoidance system with respect to different traffic factors, simple and complex collision avoidance cases have been designed in fast-time simulations with multi-ship encounter conditions. The simplified simulation model developed here can quickly determine the helm angle when the ship makes a collision avoidance manoeuvre, which is helpful for the safety of ship navigation in heavy traffic areas.
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Benedict, Knud, Michèle Schaub, Michael Baldauf, Michael Gluch, Matthias Kirchhoff, and Caspar Krüger. "New Results For Teaching Ship Handling Using Fast Time Simulation." Pedagogika-Pedagogy 93, no. 7s (August 31, 2021): 167–84. http://dx.doi.org/10.53656/ped21-7s.15new.

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Some years ago, the SAMMON software tool box was introduced for “simulation augmented manoeuvring design, monitoring & conning”. It is based on the innovative “rapid advanced prediction & interface technology” (RAPIT) to simulate the ships motion by fast time simulation FTS with complex dynamic math models and to display the ships track immediately in an electronic sea chart for any rudder, thruster or engine manoeuvre planned by the navigator.specifically, the SAMMON planning tool will be shown in its opportunities for achieving new knowledge for teaching of ships dynamic and training of ship handling elements. That system represents the full information from ships’ manoeuvring documentation and from additional trial results squeezed in a ship dynamic model, capable of simulating environmental effects by using the RAPIT technology. The paper introduces the variety of opportunities of the training tools by presenting use case studies, e.g. For drifting under wind and how to get simple formulas for drift speed related to wind speed. Additionally, two complex manoeuvring strategies for a port arrival scenario will be compared for a ship with azimuth propeller to find out potential alternatives with less fuel consumptions and emissions.
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Zhang, Jie, and Yingjun Zhang. "A Novel Ship-Ship Distance Model in Restricted Channel via Gaussian-TRR Identification." Mathematical Problems in Engineering 2021 (March 1, 2021): 1–19. http://dx.doi.org/10.1155/2021/6626850.

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Very large ships are crucial cargo ships that are relatively difficult to manoeuvre, and ship-ship distance is a vital manoeuvring parameter in restricted channel. To ensure ship safety and improve scheduling efficiency, this study established a ship-ship distance model in restricted channel by ship manoeuvring motion simulation, collision detection, and identification modelling. Firstly, the ship manoeuvring model calculated the forces and moments of ship-ship interaction and ship-bank interaction. Then, the collision detection was applied to calculate the intersection area of ship collision. Secondly, the discrete numerical simulation approach was employed with varying speed and distance, and the intersection area was counted. Finally, the 3D Gaussian models of encountering and overtaking were identified by the trust-region-reflective (TRR) algorithm, and ship-ship distance and prohibited zone were proposed. The results show that the minimum ship-ship distance for encountering and overtaking is 1.50 and 2.4 ship beam, respectively, which is consistent with Japan’s standard. The numerical results revealed that the prohibited zone is an elliptical shape. The ship-ship distance and prohibited zone serve as ship safety domain for collision avoidance during harbor approaching.
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Aarsæther, Karl Gunnar, and Torgeir Moan. "Adding the Human Element to Ship Manoeuvring Simulations." Journal of Navigation 63, no. 4 (September 13, 2010): 695–716. http://dx.doi.org/10.1017/s037346331000024x.

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Time-domain simulation of ship manoeuvring has been utilized in risk analysis to assess the effect of changes to the ship-lane, development in traffic volume and the associated risk. The process of ship manoeuvring in a wider socio-technical context consists of the technical systems, operational procedures, the human operators and support functions. Automated manoeuvring simulations without human operators in the simulation loop have often been preferred in simulation studies due to the low time required for simulations. Automatic control has represented the human element with little effort devoted to explain the relationship between the guidance and control algorithms and the human operator which they replace. This paper describes the development and application of a model for the human element for autonomous time-domain manoeuvring simulations. The method is applicable in the time-domain, modular and found to be capable of reproducing observed manoeuvre patterns, but limited to represent the intended behaviour.
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Song, Hao Ran. "Study on Application in the Teaching of Ship Maneuvering Simulator." Applied Mechanics and Materials 310 (February 2013): 580–83. http://dx.doi.org/10.4028/www.scientific.net/amm.310.580.

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Ship handling Simulator system was dominated by computer technology, combined with disciplines such as ship hydrodynamics, to emulate a variety of sea and sea conditions, various types of ships and its control system, achieve the purpose of simulation training. At present, the ship manoeuvring Simulator in navigational teaching and training not only from the international shipping industry is generally acceptable, but also highly valued by the International Maritime Organization. Therefore, growing on ship manoeuvring Simulator in navigational teaching research on the application and training of the crew, ship maneuvering simulator training more rational, more realistic, more standardized.
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Hasegawa, Kazuhiko, and Yoshimichi Sasaki. "Java-Based Simulation Tool for Ship Manoeuvring." IFAC Proceedings Volumes 30, no. 22 (September 1997): 139–44. http://dx.doi.org/10.1016/s1474-6670(17)46504-9.

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Ni, Shengke, Zhengjiang Liu, and Yao Cai. "Ship Manoeuvrability-Based Simulation for Ship Navigation in Collision Situations." Journal of Marine Science and Engineering 7, no. 4 (March 30, 2019): 90. http://dx.doi.org/10.3390/jmse7040090.

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In this article, a ship manoeuvrability-based simulation for ship navigation in collision situations is established. Under the general requirement from the Convention on the International Regulations for Preventing Collisions at Sea (COLREGs) and good seamanship, the determination of encounter situations is quantified to reduce navigators’ intervention. Meanwhile, the action manner by course alteration or changing speed in some typical encounter situations is graphically analysed for both the give-way and stand-on vessels. Then, the multiple genetic algorithm and linear extension algorithm are adopted to perform trajectory planning for collision avoidance. To improve the reliability of the simulation system, the mathematical model of ship motion and ship manoeuvring control mechanism are adopted, which can eliminate the insufficiency of neglect of ship manoeuvrability in the process of collision avoidance. Meanwhile, the course encoding technique is adopted to fit the ship manoeuvring control mechanism. Finally, a set of traffic scenarios emulating different encounter situations are applied to demonstrate the effectiveness, consistency, and practicality of this system.
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Ayaz, Z., O. Turan, and D. Vassalos. "Manoeuvring and Seakeeping Aspects of Pod-Driven Ships." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 219, no. 2 (June 1, 2005): 77–91. http://dx.doi.org/10.1243/147509005x10495.

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An existing coupled non-linear six-degree-of-freedom model, which combines manoeuvring and seakeeping, is being enhanced for the simulation of motions of azimuthing pod-driven vessels. The equations of motions and modified numerical model for calculation of pod-induced propulsive and hull forces are presented. The modified numerical code has been verified using an extensive amount of experimental data for both conventional and pod-driven roll-on roll-off passenger ship/ferry (ROPAX) hull forms. Comparisons have been made between conventional and podded control using zigzag and pull-out manoeuvring tests and significant motion amplitudes in waves, with the aim of investigating the directional stability and course-keeping ability of pod-driven ships, as well as the effect of large pod-induced heel angles to the turning and ship motions in waves. The results showed satisfactory agreement with experiments for the enhanced model. In the light of this investigation, the importance of hydrodynamic optimization for the azimuthing pod-driven ship design to eliminate any stability and control problems caused by design modifications has been demonstrated by the use of numerical simulations. Finally the efficiency of the azimuthing podded drives, in terms of overall controllability and seakeeping characteristics of ships, is discussed and conclusions are drawn.
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Luo, Weilin. "Parameter Identifiability of Ship Manoeuvring Modeling Using System Identification." Mathematical Problems in Engineering 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/8909170.

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To improve the feasibility of system identification in the prediction of ship manoeuvrability, several measures are presented to deal with the parameter identifiability in the parametric modeling of ship manoeuvring motion based on system identification. Drift of nonlinear hydrodynamic coefficients is explained from the point of view of regression analysis. To diminish the multicollinearity in a complicated manoeuvring model, difference method and additional signal method are employed to reconstruct the samples. Moreover, the structure of manoeuvring model is simplified based on correlation analysis. Manoeuvring simulation is performed to demonstrate the validity of the measures proposed.
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Benedict, Knud, Sandro Fischer, Michael Gluch, Matthias Kirchhoff, Michele Schaub, Michael Baldauf, and Burkhard Müller. "Innovative Fast Time Simulation Tools for Briefing / Debriefing in Advanced Ship Handling Simulator Training and Ship Operation." Transactions on Maritime Science 6, no. 1 (April 20, 2017): 24–38. http://dx.doi.org/10.7225/toms.v06.n01.003.

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The innovative “Simulation-Augmented Manoeuvring Design, Monitoring & Control” system (SAMMON) based on Fast Time Simulation (FTS) technology was developed at the Institute for Innovative Ship Simulation and Maritime Systems (ISSIMS) of the Maritime Simulation Centre Warnemuende MSCW. The system consists of software modules for (a) Manoeuvring Design & Planning, (b) Monitoring & Control based on Multiple Dynamic Prediction and (c) Trial & Training. It is based on complex ship dynamic models for rudder, thruster or engine manoeuvre simulation under different environmental conditions. It is an effective tool for lecturing and demonstrating ship's motion characteristics, as well as for ship handling simulator training. It allows the trainee to immediately see the results of the actual rudder, engine or thruster commands, without having to wait for the real-time response of the vessel. The Maritime Simulation Centre of AIDA Cruises at Rostock/Germany and the CSMART Center for Simulator Maritime Training of Carnival Corporation at Almere/NL have some experience with the use of this new technology to improve simulator training in Advanced Ship Handling Training courses. Examples of its application in briefing/debriefing and introductory lectures for simulator exercises specifically for typical cruise ships with Twin-Screw and Rudder systems will be presented in the paper and at the conference.
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Dissertations / Theses on the topic "Ship manoeuvring simulation"

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Pourzanjani, M. M. A. "Simulation of ship manoeuvring." Thesis, University of Exeter, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378242.

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Koskinen, Kristian. "Numerical simulation of ship motion due to waves and manoeuvring." Thesis, KTH, Marina system, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121355.

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This is a master thesis conducted at KTH Centre for Naval Architecture in collaboration with Seaware AB and Wallenius Marine AB.Traditionally simulation of ship motion is divided into manoeuvring and seakeeping. In manoeuvring the plane motion in surge, sway and yaw degrees of freedom for a ship considered moving in calm water is simulated. For increased accuracy the roll degree of freedom can be included as it affects the plane motion. In seakeeping ship motion due to waves at a specific speed and course in 3 to 6 DOF (degrees of freedom), depending on the area of interest, is simulated.The motion that a ship undergoes at sea is however dependent on the interaction between the forces and moments due to waves as well as the forces and moments related to ship manoeuvring. Furthermore, analysis on e.g. methods for counteracting roll motion in waves with rudder movement requires the modelling of forces and moments due to waves and manoeuvring in several DOF. It is therefore desirable to develop a unified model that describes ship motion in several DOF with respect to waves and the effects of manoeuvring.To create a mathematical model, written in MATLAB script, for simulation of ship motion due to waves and the manoeuvring related forces in 5 DOF, a wave induced (Ovegård 2009) and manoeuvrability (Zachrissson 2011) ship motion model were integrated.The code was validated against a linear strip theory, a non-linear ship motion model as well as model experimental results. Results have shown that whilst the heave and pitch motions agree with the models and tank tests the roll motion is seen, in some cases, as creating larger response in comparison to other models and experimental tank tests.
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Ebada, Adel. "Intelligent techniques-based approach for ship manoeuvring simulations and analysis artificial neural networks application /." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=984707166.

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Huang, Yu-Hsiang, and 黃昱翔. "The Manoeuvring Characteristic Simulation of Two Ship Types." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26357356130454347098.

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碩士
國立臺灣海洋大學
運輸科學系
102
A real-time ship simulator, UMS, which is based on the 3-D MMG model has been used for the sea trial simulation of one bulk carrier and one oil tanker to investigate the manoeuvring performance. This 3-D mathematical model includes the manoeuvring characteristics and the hydrodynamic coefficients are estimated with empirical formula from published papers. In order to clarify the validity of the proposed manoeuvrability prediction system, sea trial measured results of the bulk carrier and oil tanker provided by the SOIC have been compared with the simulation results by the present simulation system. The sea trial of the bulk carrier and oil tanker includes the speed trial and turning circle test. A series of factor study for the hydrodynamic coefficients has been carried out to investigate the turning characteristics of the bulk carrier and oil tanker. There are thirteen hydrodynamic coefficients selected for investigating the factor analyses of turning characteristics for container ships. Based on the numerical analyses of hydrodynamic coefficients, the standard operating procedure of the parameter adjustment for the mathematical model of ship simulator has been suggested. It can help the naval architect for the ship manoeuvring prediction in the basic design stage and can provide a good mathematical model of ship simulator for teaching, training and research in the field of marine navigation.
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Hsia, Pang-Hsin, and 夏邦興. "The Probabilistic Fast-Time Ship Manoeuvring Simulation for Entering Taichung Harbour." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/j7kwqa.

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碩士
國立臺灣海洋大學
商船學系
104
The development of world trade and economics made the traffic density near the regions of coastal and harbor increasing. And further, ship large-sized trend makes navigation safety issues become relatively complex. Which therefore, large-size ships navigating in/outbound harbor is an important and challenging issues. In recent years, progress in computer technology, developing low cost and high efficiency methods of ship manoeuvering simulation to study and assess the navigation risk of large ships in busy water area, narrow waterway or large ships inbound is an important and challenging issues. In this research, we used the data of real-time simulation of LNG vessel arrival Taichung harbour to 1)developing the probability distribution model of ship position, course, and speed, firstly, and then implemented the risk assessment of inbound ships near the entrance. Furthermore, it also have accomplished: 2) the distribution of wheel-over point positions , the time-interval of helm-orders distribution in direct and curved route, and transferred into the human operation elements, then installed into the Probability Fast-time Simulation, in order to develop the Probability Fast-time Simulation system that conform to actually happening. According to the paper conclusion, the main factor of inbound risk is the influence of climate condition, wind and current. The key point of controlling risk situation is the mutual relations, ship velocity and rudder effect. These results are not only supply the entering pre-information to navigators, but keep on applying to others, finished the full data bank each harbour in Taiwan that be able to used.
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Lin, Chin-Yi, and 林晉義. "The Manoeuvring Characteristic Analyses of Container Ships with Ship Simulator." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06725924631131061936.

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碩士
國立臺灣海洋大學
運輸科學系
100
A real-time ship simulator, UMS-2011, which is based on the 6-D MMG model has been used for the sea trial simulation of three container ships to investigate the manoeuvring performance. This 6-D mathematical model includes the seakeeping and manoeuvring characteristics and the hydrodynamic coefficients are estimated with empirical formula or database from published papers. In order to clarify the validity of the proposed manoeuvrability prediction system, sea trial measured results of three container ships provided by the CSBC have been compared with the simulation results by the present simulation system. The sea trial of the container ship includes the speed trial, turning circle test, crash stop test and Zig-Zag test. A series of factor study for the hydrodynamic coefficients has been carried out to investigate the turning characteristics of the container ships. There are thirteen hydrodynamic coefficients selected for investigating the factor analyses of turning characteristics for container ships. Based on the numerical analyses of hydrodynamic coefficients, the standard operating proudure of the parameter adjustment for the mathematical model of ship simulator has been suggested. Finally, the numerical predicting model of manoeuvring characteristics has been carried out to predict the manoeuvring responses and hydrodynamic coefficients. It can help the naval architect for the ship manoeuvring prediction in the basic design stage and can provide a good mathematical model of ship simulator for teaching, training and research in the field of marine navigation.
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Grant, Michael. "New modelling and simulation methods to support clean marine propulsion." Thesis, 2021. http://hdl.handle.net/1828/13308.

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The marine industry has increased its adoption of pure-electric, diesel-electric, and other non-traditional propulsion architectures to reduce ship emissions and fuel consumption. While these technologies can improve performance, the design of a propulsion system becomes challenging, given that no single technology is superior across all vessel types. Furthermore, even identical ships with different operating patterns may be better suited to different propulsion technologies. Addressing this problem, previous research has shown that if key elements of a vessel's operational pro file are known, simulation and optimization techniques can be employed to evaluate multiple propulsion architectures and result in a better propulsion system design and energy management strategy for a given vessel. While these studies have demonstrated the performance improvements that can be achieved from optimizing clean marine propulsion systems, they rely on vessel operational profiles obtained through physical measurement from existing ships. From a practical point of view, the optimization of a vessel's propulsion system needs to occur prior to a vessel's construction and thus precludes physical measurement. To this end, this thesis introduces a marine simulation platform for producing vessel operational profiles which enable propulsion system optimization during the ship design process. Core subsystem modules are constructed for simulating ship motions in 3 degrees of freedom and result in operational profile time-series, including propulsion power. Data is acquired from a benchmark vessel to validate the simulation. Results show the proposed approach strikes a balance between speed, accuracy, and complexity compared with other available tools.
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Ebada, Adel [Verfasser]. "Intelligent techniques-based approach for ship manoeuvring simulations and analysis : artificial neural networks application / von Adel Ebada." 2007. http://d-nb.info/984707166/34.

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Books on the topic "Ship manoeuvring simulation"

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Permanent International Association of Navigation Congresses. Permanent Technical Committee II. Working Group no. 20., ed. Capability of ship manoeuvring simulation models for approach channels and fairways in harbours: Report of Working Group no. 20 of Permanent Technical Committee II. Brussels, Belgium: General Secretariat of PIANC, 1992.

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Book chapters on the topic "Ship manoeuvring simulation"

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Gluch, M., K. Benedict, M. Baldauf, M. Kirchhoff, and S. Fischer. "Manoeuvring simulation on the bridge for predicting motion of real ships and as training tool in ship handling simulators." In Marine Navigation and Safety of Sea Transportation. CRC Press, 2009. http://dx.doi.org/10.1201/9780203869345.ch9.

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"1 Manoeuvring simulation on the bridge for predicting motion of real ships and as training tool in ship handling simulators." In Marine Navigation and Safety of Sea Transportation, 79–84. CRC Press, 2009. http://dx.doi.org/10.1201/9780203869345-15.

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Benedict, K., M. Kirchhoff, M. Gluch, S. Fischer, M. Schaub, M. Baldauf, and S. Klaes. "Advanced Ship Handling Using Simulation Augmented Manoeuvring Design and Monitoring – a New Method for Increasing Safety & Efficiency." In Marine Navigation and Safety of Sea Transportation, 105–13. CRC Press, 2013. http://dx.doi.org/10.1201/b14961-21.

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"Enhanced Preliminary Design Ship Manoeuvring Simulator Techniques." In Modelling and Control of Marine Craft, 50–61. CRC Press, 1991. http://dx.doi.org/10.1201/9781482296594-9.

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Duman, Suleyman, and Sakir Bal. "Pure Yaw Simulations of Fast Delft Catamaran 372 in Deep Water." In Progress in Marine Science and Technology. IOS Press, 2020. http://dx.doi.org/10.3233/pmst200033.

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Fast marine vehicles have become more important than ever before due to increasing need and population. In maritime sector, special ship types such as catamaran and trimaran have already been designed and/or built to the civil and naval areas of use. The hydrodynamic performance of these vessels is an interesting problem for naval architects due to the wave interference between the hulls. From this point of view, a generic high-speed catamaran hull form (Delft catamaran 372 or DC372) has been chosen for the numerical prediction of manoeuvring coefficients. To achieve this, the pure yaw captive manoeuvre simulations of the DC372 have been performed in deep water conditions at several oscillating frequencies by using CFD method. The unsteady RANS equations have been solved under incompressible, viscous and fully turbulent flow conditions. The uncertainty in the computations has been determined using proper techniques. Manoeuvring coefficients have been calculated by processing time dependent force/moment signals obtained numerically with the help of Fourier analysis. Due to the accurate grid structure used here, numerical ventilation has been prevented and wave deformations have been captured well.
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Guedes Soares, C., and S. Sutulo. "An object-oriented manoeuvring simulation code for surface displacement ships." In Maritime Transportation and Exploitation of Ocean and Coastal Resources, 287–94. Taylor & Francis, 2006. http://dx.doi.org/10.1201/9781439833728.ch34.

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Benedict, K., M. Kirchhoff, M. Gluch, S. Fischer, M. Schaub, and M. Baldauf. "Simulation-Augmented Methods for Manoeuvring Support – On-Board Ships and from the Shore." In Information, Communication and Environment, 107–16. CRC Press, 2015. http://dx.doi.org/10.1201/b18514-15.

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Consolo, Oliviero, Lodewick Hillege, and Matteo Bonci. "The Roll Damping of High-Speed Craft in Waves." In Progress in Marine Science and Technology. IOS Press, 2020. http://dx.doi.org/10.3233/pmst200037.

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The main component of high-speed craft (HSC) roll damping is related to the hydrodynamic lift developed on the hull surface. This is very different from displacement type hull forms. However, the estimation of roll damping of HSC is often treated in the same manner as for larger and slower ships. Being able to model the roll of HSC correctly is of paramount importance in the prediction of the lateral component of acceleration of an impact at a roll angle in waves, or during a manoeuvre at high speed. These are phenomena that can have severe consequences on the comfort and safety of the crew on-board of HSC. Three procedures meant to estimate the HSC roll damping were analyzed. The outcomes of these procedures were compared in terms of roll and lateral accelerations statistics of HSC sailing in irregular waves. The HSC motions were predicted by a 2D+t mathematical model. Differently from the majority of the state-of-art HSC seakeeping tools, which focuses only on the vertical impacts in head waves, in this work the roll was included in the simulations. The numerical results of the simulations were validated by means of free sailing model tests at beam and quartering irregular seas carried out at the Seakeeping and Manoeuvring Basin of MARIN.
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Conference papers on the topic "Ship manoeuvring simulation"

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Varyani, K. S. "Manoeuvring For Design: Computer Simulation of Ships." In Ship Motions and Manoeuvrability. RINA, 1998. http://dx.doi.org/10.3940/rina.sm.1998.3.2.

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Duffy, J. T., M. R. Renilson, and G. A. Thomas. "Simulation of Ship Manoeuvring in Laterally Restricted Water." In International Conference on Ship Manoeuvring in Shallow and Confined Water: Bank Effects. RINA, 2009. http://dx.doi.org/10.3940/rina.bank.2009.14.

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Ueno, Michio, and Yoshiaki Tsukada. "Similarity of Rudder Effectiveness and Speed Response of a Free-Running Model Ship." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23805.

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The authors had proposed a method, rudder effectiveness correction, to realize full-scale equivalent manoeuvring motion using scale models with the auxiliary thruster. In the method they introduced the rudder effectiveness correction factor to make the effective inflow velocity to rudder defined in a steady straight course similar to a corresponding full-scale ship. The method assumes the factor constant during manoeuvring motion for a model ship running at a constant propeller rate of revolution. In this report the authors propose by a numerical approach a detailed method ensuring more precisely the similarity of manoeuvring motion than the former one. The detailed method takes into account the similarities both of the speed response and rudder effectiveness. The time-varying control both of the propeller rate of revolution and rudder effectiveness correction factor, based on the new method, enables scale model ships to realize the similar manoeuvring motion to full-scale ships more accurately. Simulation calculations using the modular mathematical model of manoeuvring motion clarifies how well the detailed method raise the precision of the full-scale equivalent manoeuvring motion in free-running model ship testing comparing with the former method.
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Oh, Kyoung-Gun, and Kazuhiko Hasegawa. "Low Speed Ship Manoeuvrability: Mathematical Model and its Simulation." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11489.

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In case of offshore support vessels, it is quite important for their behaviours in low speed manoeuvrability. It is not easy to operate offshore support vessels and it raises an importance to train crew by a ship handling simulator. Therefore it is quite hot issue for ship handling simulator vendors to provide mathematical model of support vessels, but from the users’ point-of-view the model used for the simulator is not clear. Up to now some mathematical models are proposed in the literature, but the validation is not yet done carefully. For example, cross flow model is the main part for hydrodynamic force in low speed ship manoeuvring. From model ship experiments of various types of ships and from some comparison study, it is found that further discussion is necessary. In this paper, sway force and yaw moment as well as surge force will be treated in low speed condition with certain sway and yaw motions. There are many experiment results for such hydrodynamic forces and moment, especially for sway force and yaw moment, for sway motion, but those for yaw motion is quite limited. In this paper, such hydrodynamic forces and moment for both sway and yaw motions are calculated and validated with experiment results. Some manoeuvring simulation will also demonstrate which terms and/or expressions in the mathematical model are affecting the motion.
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Gavrilin, Sergey, and Sverre Steen. "An Alternative Approach to Validation of Ship Manoeuvring Models." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54276.

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This paper is devoted to validation of ship manoeuvring models. An alternative approach to validation is proposed. It is based on comparison of accelerations measured in a validation experiment and calculated using a simulation model. It can be applied to arbitrary trials and in-service collected data. The approach is applied to assess three versions of a manoeuvring model of a twin-screw, twin-rudder vessel. Case trials are the 20° turning circle and the 20°/20° zigzag, performed with a free sailing model. Full simulations are performed as well. Conclusions made from two approaches are compared.
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6

Luo, Wei-lin, Zao-jian Zou, and Hong-liang Xiang. "Simulation of Ship Manoeuvring in the Proximity of a Pier by Using Support Vector Machines." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49644.

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Ship manoeuvrability has a close relationship with navigation safety. For a ship sailing in the proximity of a pier, its manoeuvrability is different from that in unrestricted waters. To predict the ship manoeuvrability in the proximity of a pier, the method of simulation based on mathematical model is used. The mathematical model of ship manoeuvring is obtained by using Support Vector Machines (SVM) based system identification, combined with free-running model tests. The interaction between the pier and the ship are considered in the mathematical model of ship manoeuvring motion. By analyzing the test results, SVM is applied to identify the hydrodynamic coefficients and the interaction coefficients in the mathematical model. By using the regressive models, the ship manoeuvring motions in the proximity of a pier are predicted. Comparisons between the predicted results and the test results demonstrate the validity of the proposed SVM method. Identification results, model test results as well, also confirm that navigation safety of the ship in the proximity of a pier can be guaranteed if the distance between the pier and the ship is under control.
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Coraddu, A., M. Kalikatzarakis, L. Oneto, G. J. Meijn, M. Godjevac, and R. D. Geertsma. "Ship diesel engine performance modelling with combined physical and machine learning approach." In International Ship Control Systems Symposium. IMarEST, 2018. http://dx.doi.org/10.24868/issn.2631-8741.2018.011.

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Condition Based Maintenance on diesel engines can help to reduce maintenance load and better plan maintenance activities in order to support ships with reduced or no crew. Diesel engine performance models are required to predict engine performance parameters in order to identify emerging failures early on and to establish trends in performance reduction. In this paper, a novel approach is proposed to accurately predict engine temperatures during operational dynamic manoeuvring. In this hybrid modelling approach, the authors combine the mechanistic knowledge from physical diesel engine models with the statistic knowledge from engine measurements on a sound engine. This simulation study, using data collected from a Holland class patrol vessel, demonstrates that existing models cannot accurately predict measured temperatures during dynamic manoeuvring, and that the hybrid modelling approach outperforms a purely data driven approach by reducing the prediction error during a typical day of operation from 10% to 2%.
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Guo, Bingjie, Eivind Ruth, Håvard Austefjord, Elzbieta M. Bitner-Gregersen, and Odin Gramstad. "Study on Ship Manoeuvering in Adverse Sea State." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61935.

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IMO introduced Energy Efficiency Design Index (EEDI) to regulate the greenhouse gas (GHG) emissions from ships. The cheapest and easiest way to fulfil the EEDI requirement is to reduce installed power for most ships. Therefore, it has raised serious concerns that some ship designers might choose to lower the installed power to achieve EEDI requirements and not consider ship safety in a satisfactory way. This could induce ship manoeuvrability and safety problems in adverse seas, which needs urgent investigations on minimum power to maintain ship manoeuvrability in adverse sea. A time domain code ‘Waqum’ has been developed based on the force superposition of unified theory to study the minimum required power for maintaining ship manoeuvring ability in adverse sea states. The code combines sea-keeping and maneuvering equations, together with an engine model to predict ship responses in waves. The code can help us to study ship responses in transit situation and give us better insight into ship maneuvering ability in adverse sea states. In order to improve the simulation speed, the time domain code does not calculate all the hydrodynamic forces directly. Thus, some precalculations should be done for some force components before launching the simulation for a new ship. Therefore, the methodology and accuracy of each force component will influence the accuracy of the manoeuvring code. The methodology for determining each force component will be discussed, especially the identification of maneuvering derivatives based on CFD simulations. The code has been improved recently, and another rudder model has been implemented. Further, the the code with new rudder model is verified in calm water. The code’s ability to capture ship maneuvering in waves is also demonstrated.
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9

Ruiz, Manases Tello, Marc Mansuy, Guillaume Delefortrie, and Marc Vantorre. "Manoeuvring Study of a Container Ship in Shallow Water Waves." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78294.

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When approaching or leaving a port a ship often needs to perform manoeuvres in the presence of waves. At the same time the water depth is still limited for deep drafted vessels. For manoeuvring simulation purposes this requires a manoeuvring model which includes phenomena such as short crested waves and squat effects. The present paper addresses the manoeuvring problem in shallow water waves numerically and experimentally. The numerical study is conducted by means of potential theory, incorporating first and second order exciting wave forces, and their superposition to the calm water manoeuvring models. The applicability of such an approach is also investigated. The experimental work has been conducted at Flanders Hydraulics Research (in cooperation with Ghent University) with a scale model of an ultra large container vessel. Captive model tests comprise harmonic yaw tests and steady straight line tests with and without waves, at different forward speeds, wave frequencies and amplitudes, in head and following waves. Waves are chosen to represent conditions commonly met by ships in the Belgian coastal zone of the North Sea.
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Gavrilin, Sergey, and Sverre Steen. "Uncertainty of Sea Trials Results Used for Validation of Ship Manoeuvring Simulation Models." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41887.

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Increasingly complex marine operations dictate higher need for precise and reliable modelling. For the last decades several different approaches to modelling of ship manoeuvring were developed, including scaled model testing, numerical and empirical methods. Increasingly, time-domain simulation models for ship manoeuvring are developed and used for training and planning of marine operations. Especially when using the simulation models to plan operations, it is essential that the simulation model is properly validated. There is a need for better and more standardized validation methods for such simulation models. A key issue is the uncertainty of the data used in the validation. Typically, the validation will be against full scale trials results. In the study reported in this paper it was found by inspection of repeated tests results that even under relatively calm environmental conditions outcomes of sea trials can be highly uncertain. However, it is very expensive to investigate uncertainty of each type of trial experimentally. Therefore it can be very beneficial to estimate it by means of a simulation model. This paper presents results of analysis of full scale turning circle trials of research vessel “Gunnerus”. Turning circle trials with 20° and 35° rudder angle executed both to starboard and port sides are analyzed. Experimental uncertainty analysis is performed. Effectiveness of IMO correction procedure is discussed. Also paper describes a method for determining uncertainty of trial results due to environmental effects by means of simulation model and compares them with experimental uncertainty. The method is based on Monte-Carlo techniques.
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