The paper presents a two-stage approach for ship design optimisation under uncertainties related to stochastic parameters that cannot be controlled by the designer. The designer decision is partitioned into two sets: the first contains variables that have to be decided before the onset of any uncertain condition, while the second involves variables that may be decided once the random events have occurred. The first-stage variables are selected so that the sum of the first-stage cost and the expectation of the second-stage cost is minimised. The problem is solved as a two-nested-loop minimisation problem, which combines robustness of the first-stage decision with flexibility of the second-stage decision. The approach is applied to the conceptual optimisation of a bulk carrier.


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    Title :

    Two-stage stochastic programming formulation for ship design optimisation under uncertainty


    Additional title:

    Zweistufiige stochastische Programmformulierung für die Optimierung des Schiffsentwurfs bei Unbestimmtheit der Parameter


    Contributors:

    Published in:

    Publication date :

    2010


    Size :

    10 Seiten, 11 Bilder, 7 Tabellen, 11 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English