Improved Design Process: Part of the Ship Producibility Program of the National Shipbuilding Research Program. Final Report PDF Download
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Author:
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Category :
Languages : en
Pages : 368
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Author:
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ISBN:
Category :
Languages : en
Pages : 368
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Author: United States. Maritime Administration
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Category : Naval architecture
Languages : en
Pages : 15
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Category :
Languages : en
Pages : 163
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The purpose of this study was to develop an improved ship design process with increased emphasis on producibility. Early results led to the consensus by all concerned that no improved process, per se, would result from the study but that a number of significant improvements in the design process were possible, which would lead to reduced ship cost.
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Category :
Languages : en
Pages : 31
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In October 1989, A Ship Design for Producibility Workshop was held by the Naval Sea Systems Command (NAVSEA) at the David Taylor Research Center (DTRC). The purpose of the workshop was To develop the framework of a plan to integrate producibility concepts and processes into the NAVSEA Ship Design Process. The major recommendations of the workshop included initiatives related to increased training of NAVSEA design engineers in modem ship production concepts, development of producibility design tools and practices for use by NAVSEA design engineers, improved cost models, implementation of produability strategies for ship design process improvements, modification to existing acquisition practices, and improved three-dimensional (3-D) digital data transfer. The workshop was one of NAVSEA s first Total Quality Leadership (TQL) initiatives and was subsequently expanded into the Ship Design, Acquisition and Construction @AC) Process Improvement Project. This paper reports on the major findings and recommendations of the workshop, the near term accomplishments since the workshop, and the long range strategic plan for continuously improving producibility in the Naval Ship Design Process.
Author: ManTech International Corporation. CADCOM.
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Category : Marine engineering
Languages : en
Pages : 164
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Category :
Languages : en
Pages : 376
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Author:
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Category :
Languages : en
Pages : 26
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The shipyards in this country have spent a sizable amount of money to modernize their methods of fabrication to increase construction. The shipbuilding industry is a labor intensive business based on small orders of ships that does not allow for total automation in the near term, if ever. One area of a shipyard that has minor or limited changes is the structural design office. The manual drafting of working drawings is basically the same as the methods used in the 1950's. A number of yards have restructured the working drawing to assembly type drawings. This is a major change assisting in the construction of the ship, but is still limited in scope. The present method does not allow for an orderly progression into the application of computers. The development of working drawings to assist construction is-poor and this stagnation has restricted the design office from converting drawings to computers. The problem stems from false economy values. The idea that a limited budget for the development of working drawings will increase the yard's profit margin is a false one. Every effort, or person hour, used in design should have a direct savings in production manhours. The goal of the designer's output should be a necessary and direct part of the construction program. Many design offices may not even realize that they are not only reducing costs, but are driving them up due to poor detailing. (A complete study of the working drawing process should be made objectively by design, production and planning people). This paper may give the basic outlines for consideration. Thomas P. Gallagher, Surface Ship Structures, Head, Research, Dynamic/Highedr Performance Craft Section, Phone 202-692-9107, Naval Ship Engineering Center.
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Category :
Languages : en
Pages : 208
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In recent years NASSCO has made considerable progress in improving their performance in ship outfitting. This improvement is leading towards achieving a level of performance, which will be competitive in international commercial shipbuilding. The implementation of on-block and on-unit outfitting techniques, together with the development of workstation-style production information and the introduction of multi-skilled work teams has significantly reduced the outfit production man-hours and cycle time. This improvement has been achieved through a wide variety of highly focused production oriented projects. In support of this project, NASSCO is building on these achievements to create a firm foundation of performance necessary to achieve international competitiveness.
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Category :
Languages : en
Pages : 22
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Recent NAVSEA studies of a twin skeg hull form design applied to a T-AO type ship indicated many areas of possible improvement in producibility. This paper reviews the findings of producibility studies and attempts to indicate specific areas where an improvement in producibility and attendant cost savings for Navy ships are possible without any degradation in ship performance and survivability. Most available studies on producibility have an inherent trait of elaborating on details of shipyard producibility. This paper attempts to confine itself to the producibility aspect of the design phase, ending with the completion of contract design. While it is of course necessary for the Navy ship designer to know about producibility details of prospective building yards, he must be careful not to incorporate any details that may be restrictive on some of the prospective builders and thereby hinder competition.
Author:
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Category : Bulk carrier cargo ships
Languages : en
Pages : 308
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