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Showing 1 to 20 of 37 for “"HULL FORM"”.
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Hull form optimization for monohull ships
Thesis (S.M. in Naval Architecture)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2003.
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Optimization of an advanced high speed hull form
Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Active and passive separation control for drag reduction of a maneuvering hull form
… by resistance due to cross-flow separation. Hull forms with lower hydrodynamic resistance in maneuvers are able to follow trajectories with tighter turns and at higher speeds. Despite the progress that has been made in the control of two dimensional flow separation, little has been done to …
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Verification and Validation Study of OpenFOAM on the Generic Prismatic Planing Hull Form
… analysis, verification and validation will be performed on Generic Prismatic Planing Hull (GPPH) using OpenFOAM v1806 solver interFoam. The numerical simulation will be compared with the experimental result, which is a new set of high-quality experimental tests performed on a large model of a high …
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An experimental analysis of the hydrodynamic characteristics of the monoform: a novel hull form
… of the hydrodynamic characteristics of the Monoform hull in calm water. The forces acting on a 1.7 meter model were measured as the model was held captive and towed in calm water. The model was tested at speeds up to three meters per second. The rudders were held straight during one part of the …
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Steady State and Transient Dynamical Systems Analysis of Uncoupled Roll Response for a Traditional Versus Advanced Hull Form
… such as length and breadth. The traditional hull form is represented by a typical flare-sided design with a forward reaching bow while the advanced hull form has a modified tumblehome and a truncated bow. The difference in shapes provides an interesting problem, comparing the roll responses …
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Modeling the progressive flooding characteristics of the Arleigh Burke Class Destroyer using SIMSMART and Excel
… modeled a generic, mathematically describe able hull form; in this thesis the work is extended by applying his methods and generating new ones in order to accurately model an actual ship hull form, (the Arleigh Burke (DDG-51)), in a progressive flooding scenario. A secondary goal is to create an …
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ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΜΟΡΦΗΣ ΓΑΣΤΡΑΣ ΠΛΟΙΟΥ ΩΣ ΠΡΟΣ ΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΣΕ ΚΥΜΑΤΙΣΜΟΥΣ
… ON A COMPUTER CODE WHICH PREDICTS SEAKEEPING PERFORMANCE WHEN THE SHIP PROFILE, THE DESIGN WATERLINE, THE SECTIONAL AREA CURVE AND THE DISTRIBUTION ALONG THE SHIP OF THE CENTROID, KB(X) OF THE CROSS SECTIONS ARE PRESCRIBED. THE CODE CAN AUTOMATICALLY GENERATE VARIANT FULL FORMS DIFFERING FROM A …
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A tool to create hydrodynamically optimized hull-forms with geometrical constraints from internal arrangements
… process, the centerpiece of the effort is the hull and its hydrodynamic performance. Once the hull of a ship has been selected, all the other systems, like propulsion and electric plants, are selected and fitted in the ship. Due to the fact that the hull is considered as the most important …
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Three-Dimensional Digital Recording and Modelling Methodologies for Documentation and Reconstruction of the Newport Medieval Ship
… the individual timbers and the overall original hull form. The utilisation of advanced digital technology and engineering, in the form of Rhinoceros3D modelling software, contact digitising and rapid prototyping has enabled the project to develop and test a variety of new methodologies for …
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Damage stability of ships as a safety criterion for optimisation tools
… has been built into existing alternative hull form optimisation packages, seeking improved hydrodynamic hull forms in terms of seakeeping, calm water resistance and added resistance, damage stability is not an automated feature. Within the context of the hydrodynamic hull form optimisation …
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Cost reduction of polar class vessels : structural optimization that includes production factors
… minimize construction cost of the icebreaker's hull form. This tool allowed the user to tailor the labor and material metrics to represent a specific shipyard. The tool then specified an optimum structural solution in terms of minimum weight and production cost.
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Design and analysis of a Non-Pressurized Manned Submersible
… systematic reorganization within their existing hull form, NPMS of today can meet the mission criteria of tomorrow. Moreover, performance objectives such as increased payload, combat radius, and enhanced mission scope can not only be achieved, but in a timely manner and at a reasonable price. To …
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Hydrodynamics of unconventional SWATH vessels in waves
… of unconventional Small Water-plane Area Twin Hull (SWATH) vessels are unique in the sense that viscosity has significant non-linear effects on their hydrodynamic parameters. The parametric optimization of the hull shape of these vessels to reduce the total resistance in waves yields an …
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Naval Architecture Analysis of Civil War Ironclad CSS VIRGINIA
… the basic measures of displacement for the hull form at a draft of 21 ft forward and 22 ft aft which in turn allowed for a weight estimate to be undertaken. The goal of the weight estimate was to obtain, in particular, an estimate for the VCG of the vessel. It also allowed for gyradius …
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A parametric modelling tool for high speed displacement monohulls
… surely increase with a proposed design whose performances are demonstrated through a systematic evaluation of alternative solutions. However, the number of the design alternatives is inversely proportional to the time span of concept design for each alternative. The detailed evaluations at this …
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The effect of wing wall geometry and well deck configuration on the stability characteristics of amphibious landing ship dock (LSD) class ships
… wing wall size using an LSD 49 Class proposed hull form. The results indicated that the most significant parameter affecting the stability of the LSD 49 Class is the height of the well deck above the baseline. The higher the well deck, the smaller the loss of waterplane inertia caused by the …
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A Hybrid Method for Predicting Lift and Drag of Semi-planing/Semi-displacement Hull Forms
… a need for semi-planing/semi-displacement hullforms exists for vessels to carry relatively high loads (between 500 and 3000 tons) with a general length Froude number range between 0.4 and 1.0. A hybrid method for calculating the lift and drag of semi-planing/semi-displacement hull forms is …
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Design of a Trailer Capable, Open Ocean Sailing Yacht
… design work encompassed developing a suitable hull form; keel and rudder design; selection and validation of appropriate scantlings; designing a composite mast and spars; determining a sail plan and rigging schema; engine selection, propeller design, and o↵-design propulsion analysis; …
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