Computers in Ship Design and Production: Necessary Steps to the Payoff

1978 ◽  
Author(s):  
Bernard M. Thomson
2013 ◽  
Author(s):  
R Bencic ◽  
◽  
M Milanovic ◽  
G Sikic ◽  
M Bistricic ◽  
...  

1986 ◽  
Vol 2 (03) ◽  
pp. 185-195
Author(s):  
B. F. Tibbitts ◽  
P. A. Gale

The paper discusses, from a ship designer's perspective, some of the current topics and issues relating to the interface between naval ship design and production. The current environment within which naval ship design activity is taking place is described. Notable current views on Navy ship design and how it might be improved are summarized. Navy design topics pertinent to improving ship producibility, operability, maintainability and survivability are discussed and examples from recent ship designs are. presented. Issues which result from apparent conflicts in current design initiatives and critiques of the Navy ship design process are highlighted and discussed. Finally, some general conclusions are drawn.


2005 ◽  
Author(s):  
Robert Bronsart ◽  
Ulf Cantow ◽  
Wiegand Grafe ◽  
Thomas Koch ◽  
Bryan J. Miller

The integration of software tools used in design and production of commercial ships is regarded a key issue with respect to product optimization and overall business success. To overcome this problem CAE-systems are integrated with help of adapters to a networked information infrastructure. The overall system architecture is outlined and the underlying ERM is discussed to show the complexity of a product model suitable to support ship design and production. Data exchange scenarios are described which demonstrate the integration of different shipbuilding specific systems: e.g. NAPA Steel and the analysis tool POSEIDON by Germanischer Lloyd. The implementation of an adapter supporting the STEP protocol AP214 (Core data for automotive mechanical design processes) serves to show the potential of this well supported protocol in the shipbuilding context.


2011 ◽  
Vol 27 (04) ◽  
pp. 186-193
Author(s):  
Richard Lee Storch ◽  
Sanggyu Lim ◽  
Chi-Myung Kwon

Effective commercial shipbuilders utilize the principles of mass customization to achieve production efficiencies. This approach can allow new ship designs to satisfy specific customer requirements without substantially impacting the cost or delivery schedule. In part, this is achieved by maintaining learning curve benefits at individual workstations, where similar but nonidentical interim products are produced. The changes to an existing design when employing mass customization can be estimated in design and production effort required to implement the changes. Using a notional ship design and a notional shipyard production process, this study uses Monte Carlo simulation to evaluate the impacts of various levels of change on delivery performance.


2009 ◽  
Author(s):  
Jong-Ho Nam ◽  
Dae-Hyeon Kim

Ships use the ballast system to maintain stability. The ballast system greatly influences loading capacity and navigation of a ship as well as the ocean environment. Therefore, it is necessary to select an adequate ballast system not only to increase the efficiency of ship operation but also to protect the ocean from undesirable results of current ballasting process. The ship ballast system can be optimized by performance during the period of ship design and production. Until now most shipbuilders have implemented a ballast system based on similar data from previously built ships or experts' knowledge. If previous ballast data is unavailable, however, it is necessary to determine the most appropriate ballast system by trial-and-error. To have efficient ship design and production process, this time-consuming and expensive bottleneck should be avoided. In this paper, a ballast simulation system that predicts the ballasting and deballasting processes using a computer model is introduced. The amount of fluid flowing through a ballast system is analyzed considering friction losses in pipe's inner walls, junctions, and valves. The developed system uses the graphic user interface approach for convenient interaction between the user and the system. The results of real-time simulation will help the user to foretell the ballasting process with efficiency and accuracy.


2010 ◽  
Vol 26 (04) ◽  
pp. 231-251
Author(s):  
R. Sharma ◽  
Kim Tae-wan

Product life-cycle management (PLM) has become something like "a magic wand" for various industries because of its capability to integrate different product modules via online network through the product's complete life cycle and hence to provide one-window access, thereby making the whole processes of product conception, design, manufacturing, delivery, maintenance, and disposal integrated with a reduction in product development time and cost. However, heavy industries (i.e., shipbuilding and shipbreaking) are different from consumer product industries because of high customization in design process and engineering software, widely varying scales of operations, and less compatibility between different design and production processes, for example, ship production is planned in activity-driven network scheduling system, in general, and is assumed to be more of a construction process or assembly process rather than a production process. In this paper, we present the conceptual development and the basic building concepts for a logic-based PLM system for the shipbuilding industry. Our logic bases consist of modularization, standardization, geographical zoning, and functional zoning. The logic bases of modularization and standardization are used in the ship design and production processes, and the logic bases of geographical zoning and functional zoning are used in "logically grouping" the on-board activities in the ship production process. Overall, this paper introduces a logic-driven methodology for PLM: planning and integration of ship design and production processes. Finally, in our implementation we show that by developing a logic-based PLM system the ship design and production processes become more streamlined and better planned and executed.


1989 ◽  
Vol 5 (02) ◽  
pp. 115-125
Author(s):  
B.R. Brucker

The SEAWOLF submarine design is promoting the employment of a variety of advanced ship design and production techniques. Major goals of the design are to fully support a zone construction program, capture the database in a digital format, provide digital products for construction and logistics support and simplify, as much as possible, the construction effort. Four innovations that support these goals include: Producibility Steering Group, improved drawings, planning and sequence documents, and producibility review process. The implementation of these producibility tasks into a new submarine acquisition has required extensive development by a creative group of designers and a contingent of production planners. The SEAWOLF producibility team has undertaken the task to understand and apply the advancements in shipbuilding technology that are in place and are being implemented today. The infusion of producibility is the result of this knowledge being reflected in SEAWOLF design products.


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