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Point-Based Versus Set-Based Design Method for Robust Ship Design

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Set-based design has grown in popularity and status thanks to several successful implementations of the design method within the Navy. The method is now being considered for application during future ship, submarine, unmanned underwater vehicle, and unmanned surface vehicle programs. However, set-based design is still viewed by some circles of the naval design community with uncertainty, negativity, and as being primarily a buzz word. The goal of this paper is to educate readers on the set-based design method and to discuss the pros and cons of set-based design in the context of a notional ship design study.

Two design teams set out to design a notional surface combatant given the same set of design requirements; one team using the set-based design method and the other following the traditional point-based design method. The design study also included two mid-design requirement changes to test the robustness of the respective design methods. At the conclusion of the design study, the set-based design process proved to be more robust and the design team was able to develop a lower cost and lower risk ship design when compared to the point-based design team.

This paper begins with a short overview of the set-based design method compared to point-based design method, followed by an outline of the requirements for the notional ship design study. Details on how each team applied its respective design method to tackle the concept ship design study are outlined. The role of design tools to aid in the ship design process is also discussed. The paper concludes with insights into how and why the set-based design team prevailed.

Document Type: Research Article

Publication date: June 1, 2017

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  • The Naval Engineers Journal is the peer-reviewed journal of the American Society of Naval Engineers (ASNE). ASNE is the leading professional engineering society for engineers, scientists and allied professionals who conceive, design, develop, test, construct, outfit, operate and maintain complex naval and maritime ships, submarines and aircraft and their associated systems and subsystems.
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