Computational studies of hull-superstructure interaction were carried out using one-, two- and three-dimensional finite element analyses. Simplification of the original three-dimensional cases to one- and two-dimensional ones was undertaken to reduce the data preparation and computer solution times in an extensive parametric study. Both the one- and two-dimensional models were evaluated from numerical and experimental studies of the three-dimensional arrangements of hull and superstructure. One-dimensional analysis used a simple beam finite element with appropriately changed sections properties at stations where superstructures existed. Two-dimensional analysis used a four node, first order quadrilateral, isoparametric plane elasticity finite element, with a corresponding increase in the grid domain where the superstructure existet. Changes in the thickness property reflected deck stiffness. This model was essentially a multi-flanged beam with the shear webs representing the hull and superstructure sides, and the flanges representing the decks. One-dimensional models consistently and uniformly underestimated the three-dimensional behaviour, but were fast to create and run. Two-dimensional models were also consistent in their assessment, and considerably closer in predicting the actual behaviours. These models took longer to create than the one-dimensional, but ran in very much less time than the refined three-dimensional finite element models.


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    Titel :

    Preliminary ship design using one- and two-dimensional models


    Weitere Titelangaben:

    Die Vor-Auslegung von Schiffen mit ein- und zweidimensionalen Modellen


    Beteiligte:
    Mackney, M.D.A. (Autor:in) / Ross, C.T.F. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1999


    Format / Umfang :

    11 Seiten, 4 Bilder, 8 Tabellen, 4 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Preliminary Ship Design Using One- and Two-Dimensional Models

    Mackney, Michael D.A. | Online Contents | 1999


    Preliminary calculations in ship design

    Bustard, E.E. | Engineering Index Backfile | 1941


    Preliminary calculations in ship design

    Bustard, E.E. | Engineering Index Backfile | 1941


    Preliminary calculations in ship design

    Bustard, E.E. | Engineering Index Backfile | 1941


    Preliminary calculations in ship design

    Bustard, E.E. | Engineering Index Backfile | 1941