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2 edition of Analysis and design of developable surfaces for shipbuilding found in the catalog.

Analysis and design of developable surfaces for shipbuilding

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Published by Available from National Technical Information Service in Springfield, Va .
Written in English


  • About the Edition

    Developable surfaces are widely used in manufacturing with materials that are not amenable to stretching. Applications include the formation of ship hulls, ducts, shoes, clothing and automobile parts such as upholstery and body panels. In shipbuilding, developable surfaces are shaped using only rollers or presses. Heat treatment is then used only to remove distortion induced by welding or other means. Doubly curved surfaces, on the other hand, must be heat treated after rolling to induce the additional curvature. The heat treatment is normally done by hand, by a skilled artisan with years of training to achieve the correct amount of bending. This is an extremely time consuming, labor intensive and thus expensive process. According to Avondale/IHI Shipbuilding Technology Transfer data for a tanker, only 15.1% of the curved plates in a ship hull are singly curved, while 65.8% of the plates are doubly curved, requiring roller and heat treatment processes. An intensive effort to increase the amount of developable surfaces in the hulls of merchant ships at Burmeister & Wain Shipyard has resulted in a reported 20% reduction in manhours required to produce a hull. Designing a ship entirely of singly curved, or developable, surfaces would reduce construction costs even more. The main goal of this research is to develop a user-friendly method of designing developable surfaces with a B-spline representation. The effort is then extended to address some common differential geometry properties that will be useful in the design and manufacturing process. The ultimate goal is to provide a method to design a complete ship hull from developable surfaces and to generate cutting and bending information in a format that is user friendly for both the engineer and the worker. Although this thesis does not go that far, it takes a major step toward this goal.

    The Physical Object
    Pagination99 p. ;
    Number of Pages99
    ID Numbers
    Open LibraryOL25303071M

      The comprehensive description of each design stage presented in this book offers guidelines for academics, researchers, students, and industrial manufactures from diverse fields, including ocean engineering and mechanical engineering. From a commercial point of view the book will be of great value to those involved in designing a new vessel or. Model Ship Building - Complete Beginners Guide - Book Version This page full colour book is the ideal introduction to model ship building & model boat building. Essential modeling information is presented on workshop set-up and safety, essential modeling tools, understanding model ship plans and scale, hull planking for a sharp and bluff.

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Analysis and design of developable surfaces for shipbuilding by Julie Steele Chalfant Download PDF EPUB FB2

Analysis and design of developable surfaces for shipbuilding Item Preview of bending. This is an extremely time consuming, labor intensive and thus expensive process.

According to Avondale/IHI Shipbuilding Technology Transfer data for a tanker, only % of the curved plates in a ship hull are singly curved, while % of the plates are Pages: Chalfant, J. “Analysis and Design of Developable Surfaces for Shipbuilding,” Master’s thesis, Massachusetts Institute of Technology, Department of Ocean Engineering, Cambridge, Massachusetts, Cited by: The use of rational Bézier and B-spline bases is focused on, and a technique for the geometric design of developable surfaces is developed that has all the characteristics of existing methods for.

possible the analysis of the 3-D form of folde d geological surfaces. A large num ber of techniques exist for extracting different types of geometrical attributes of such surfaces (Roberts, ). Developable surfaces are a research field in Geometric Design and several authors have produced interesting ideas for marine design.

Reference [1] defines a developable Bézier surface in terms of two Bézier curves (directrix lines or directrices) and rulings between pairs of points from each by: Design and analysis of US Navy shipbuilding contract architecture.

Author(s) McCoy, Kathleen Marie, LCDR. DownloadFull printable version (Mb) Alternative title. Design and analysis of United States Navy shipbuilding contract architecture. Other Contributors. System Design and. Summary.

Analysis and Design of Marine Structures includes the papers from MARSTRUCTthe 4 th International Conference on Analysis and design of developable surfaces for shipbuilding book Structures (Espoo, Finland, March ).

The MARSTRUCT series of conferences started in Glasgow, UK infollowed by the second conference in Lisbon, Portugal (March ), while the third conference was held in Hamburg, Germany (March. The conference reflects the work conducted in the analysis and design of marine structures, in order to explore the full range of methods and modelling procedures for the structural assessment of marine structures.

Various assessment methods are incorporated in the methods used to analyze and design efficient ship structures, as well. The modeling of developable surfaces is considered a very important application in plat-metal-based industries.

Relating to the purpose, this discussion aims to obtain some formulas for constructing the regular developable Bézier patches, in which each boundary curve must be laid in two parallel planes.

The results as follows: We find some formulas of the equation systems that are described Author: Kusno. Books, Proceedings & CDs.

B-spline and NURBS representation, ruled and developable surfaces, subdivision surfaces, and classic computational topics such as hydrostatic properties and initial stability. This book presents a comprehensive and up-to-date treatment of propeller analysis and design, including Analysis and design of developable surfaces for shipbuilding book with an introduction.

“Since Bath Iron Works was incorporated by General Thomas W. Hyde who had served in the Union Army during the Civil War. At first the shipyard made iron hardware and windlasses for the wooden ships of the day but soon built warships for the United States Navy although it also started builting commercial vessels.

Ship Structural Analysis and Design Details. This book focuses on the most complex aspects of ship structural design which is preliminary design and will benefit structural designers and students.

The text uses a rationally-based design approach (design from first principles), which is ideally suited to preliminary structural design. Analysis and Design of Developable Surfaces for Shipbuilding. Master's thesis, Massachusetts Institute of Technology, Department of Ocean Engineering, Cambridge, Massachusetts, Ship Structural Analysis and Design [Owen F.

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Schank, Megan Abbott. Includes bibliographical references. “MR” ISBN (pbk.: alk. paper) 1. United States. Navy—Procurement—Mathematical models.

Warships— United States—Design and construction—Mathematical. This course is intended for first year graduate students and advanced undergraduates with an interest in design of ships or offshore structures.

It requires a sufficient background in structural mechanics. Computer applications are utilized, with emphasis on the theory underlying the analysis.

Hydrostatic loading, shear load and bending moment, and resulting primary hull primary stresses will. The cost analysis for the HST’’’Trailership was done using SPAR ’’’’s trimaran cost model.

The cost model estimates concept and preliminary ship designs. The cost model permits quick assessments of costs, risk, and design/mission tradeoff alternatives.

The model provides a range of structural, powering,File Size: KB. Conclusion 7: The educational system, which produces the naval architects and marine engineers with a basic understanding of design and materials and the systems thinking needed to design ships, is absolutely essential to the long-term health of the U.S.

shipbuilding industry. In the long run, the development of systems thinking and analysis. very good book Reviewer: armyship - favorite favorite favorite favorite - Septem Subject: A Handbook of Practical Shipbuilding: With a Glossary of Terms At first paragraph,this book looks very easy to understand and the way it was written is really : Laser forming of sheet material has been widely investigated for the last 15 years.

While researchers encounter severe problems during the forming of a 3D free form shape, at least one category of surfaces can be made with the process of laser forming, namely the developable surfaces, which are widely used in, for example, ship by: 2.

Title: SHIP STRUCTURAL ANALYSIS AND DESIGN HUGHES PDF Author: Earl D. Fraley Subject: SHIP STRUCTURAL ANALYSIS AND DESIGN HUGHES PDF Keywords: Reviewed by Earl D. Fraley For your safety and comfort, read carefully e-Books ship structural analysis and design hughes PDF this Our Library Download File Free PDF Size: 44KB.

Therefore developable surfaces are also called single-curved surfaces, as opposed to doubly-curved surfaces. The cost of manufacturing doubly curved surfaces is high as compared to single curved developable surface.

The design philosophy of developable surfaces can be applied for both naval and commercial by: Ship Construction, Seventh Edition, offers guidance for ship design and shipbuilding from start to provides an overview of current shipyard techniques, safety in shipyard practice, materials and strengths, welding and cutting, and ship structure, along with computer-aided design and manufacture, international regulations for ship types, new materials, and fabrication technologies.

Written by SNAME Life Member John S. Letcher, Jr., author of over 30 publications on computer-aided design and analysis of boats, ships and marine structures, this new book emphasizes the.

xvi The Shipbuilding and Force Structure Analysis Tool: A User’s Guide Tool. The purpose of the tool is to assist the OSD, Navy, and other organizations in addressing the difficult naval ship–related questions. The general architecture of the tool is shown in Figure S The tool consists of four linked models.

The first model, the Force. The U.S. shipbuilding industry now confronts grave challenges in providing essential support of national objectives.

With recent emphasis on renewal of the U.S. naval fleet, followed by the defense builddown, U.S. shipbuilders have fallen far behind in commercial ship construction, and face powerful new competition from abroad. However, this book only looks at the hull structure.

The history student or model builder can learn about many other details like hull fittings, piping and ventilation from "Practical Construction of Warships" by R. Newton, c. ; and "Design and construction of Steel Merchant Ships" by 4/5(2). Buy Ship Construction and Welding (Springer Series on Naval Architecture, Marine Engineering, Shipbuilding and Shipping) 1st ed.

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1 by (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible : Hardcover. DESIGNING DEVELOPABLE HULLS FOR SHIPS USING QUADRIC SURFACES. The paper presents a method to design developable ship hulls which is an alternative to the traditional graphical approach introduced by Kilgore and semi-automated by Nolan.

The research work reported generated good results using quadric surface patches, continuous to the first. Ship Design I Manuel Ventura [email protected] MSc in Naval Architecture and Marine Engineering a Design Process 2 Summary 1.

Process of a New Shipbuilding 2. What is Ship Design. Ship Design Methodology 4. Entities Involved in the Process 5. Technical and Legal Documents Associated • Shipbuilding Contract • Ship SpecificationFile Size: KB. Introduction to the Analysis and Design of Offshore Structures– An Overview N.

Haritos The University of Melbourne, Australia ABSTRACT: This paper provides a broad overview of some of the key factors in the analysis and design of offshore structures to be considered by an engineer uninitiated in the field of offshore engineering.

TopicsFile Size: 1MB. All curved surfaces may be classified as "developable" or "undevelopable." The side of a cylinder is a familiar example of a developable surface, and a sphere an undevelopable one. WOOD: A MANUAL FOR ITS USE AS A SHIPBUILDING MATERIAL VOLUMES 1 THROUGH IV L.F.

Herreshoff's "The Commonsense of Yacht Design". The book, is really quite. Structural Analysis and Design with Maxsurf Multiframe: Uses Finite Element Analysis (FEA) to analyze vessel beam and plate structure with applied loads, self weight, buoyancy, inertial, and hydrodynamic loads.

Capabilities include static, dynamic, and modal analysis. EMCsq Vessel Wrytha (EMCsq) was consulted by Caribbean Fastships, Ltd., which will be based in the Bahamas, to design their shipyard.

The new entity, Caribbean Fastships, will consist of a shipyard equipped for new construction, service, and/or repair. The. Chapter Analysis and Design of Ship Structure Figure Map of Sea Zones of the World (15) MASTER SET SDC qxd Page 4/28/03 PM Dynamic pressures The pressure distribution, as well as the wet portion of the hull, is modified for a ship in a seaway with respect to the still water (Figure ).

The Shipbuilding and Force Structure Analysis Tool consists of four linked models: the Force Transition Model; the Industrial Base Model; the Operating and Support Cost Model; and the Financial Adjustments and Assumptions Model.

This document serves as a basic introduction to the tool. It is intended to acquaint users with the tool's basic Author: Mark V. Arena, John F. Schank, Megan Abbott. processes for design and engineering activities within shipbuilding. The rest of the paper is organized as follows: first a presentation of shipbuilding in Norway; then the methodology approached for the literature review, followed by the preliminary findings and a conclusion part.

SHIPBUILDING IN NORWAY. Get this from a library. The geometry of ships. [John S Letcher; J Randolph Paulling; Society of Naval Architects and Marine Engineers (U.S.)] -- Although there are still practitioners of the traditional art of manual fairing of ship lines, the geometry of most hull forms ranging from small yachts to the largest commercial and naval ships are.

Analysis Concept Refinement Technology – Translate design and Ship System Specification into a Shipbuilding Specification – Contribute to development of remainder of Contract Package. 1/22/ – Governs design activity during Preliminary and Contract DesignAuthor: Norbert Doerry.

A ship design project can be described as a set of processes that begins with a feasibility analysis, continues as conceptual and contractual design phases, connects with shipbuilding activities by production engineering and finally terminates after verification experiments and .An analysis of load-balancing method for design of an optimal shape of the shell surface under given load and with a given plan is presented in [13 T.Y.

Lin, "Load-balancing method for design and analysis of prestressed concrete structures", Journal of American Concrete Institute, vol. 60, pp.Author: S.N. Krivoshapko, G.L. Gbaguidi-Aisse.SHIPBUILDING INDUSTRY By: Engr. Daniel A. Reyes 27 November Paris, France Introduction •Archipelagic country of 7, islands •Coastline length of 36, million kms •Sea areas of square kilometes By its geographical configuration, the Philippines is best File Size: 2MB.