The general structural layout is usually defined during the preliminary design. An optimization tool at this stage featuring flexibility, modeling speed and user-friendliness may provide precious help to designers. At this stage, few parameters/dimensions have been fixed and standard finite element modeling is often unusable, particularly for design offices and small and medium-sized shipyards. The LBR5 package performs early design least cost optimization. The software contains a module to assesses the construction cost, a module to analyses the considered structure, and the mathematical optimizer code. The paper contains a detailed presentation of the optimization of a medium capacity LNG ship including a sensitivity analysis on frame/stiffener spacing. This industrial optimization example shows that 5-9% of the construction cost of the hull manufacturing can be saved by performing scantling optimization at the preliminary design stage.


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    Title :

    An integrated software for scantling optimization and least production cost


    Additional title:

    Integrierte Software zur Optimierung der Materialstärke und Produktionskosten von Schiffsrümpfen


    Contributors:
    Rigo, P. (author)

    Published in:

    Publication date :

    2003


    Size :

    16 Seiten, 5 Bilder, 1 Tabelle, Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    An Integrated Software for Scantling Optimization and Least Production Cost

    Rigo, Philippe / University of Liege | Taylor & Francis Verlag | 2003



    AVPRO-LBR.5, An Initial Design Software Suite with Scantling Optimization Capabilities

    Goubault, P. / Besnard, N. / Rigo, P. et al. | British Library Conference Proceedings | 2003



    On the scantling of Hull materials of rolled steel

    Ono, T. | Engineering Index Backfile | 1929