Probalistic models are presented for the still water bending moment (SWBM) and vertical wave bending moment (VWBM). Different stochastic and deterministic methods are applied for the combination of the long-term SWBM andVWBM. It is found that commonly applicable deterministic load combinationmethods, namely, the paek coincidence method, the Turkstras rule and the SRSS rule, are either very conservative or nonconservative. Using stochasitic methods, including the exact pointcrossing method, approximate load coincidence method and Ferry Borges method, leads to identical predictions for the current load combination problem. For code application, load combination factors are introduced for both sagging and hogging conditions to reduce the conservatism inherent in the existing ship rules. Case studies are performed for an offshore production ship. A considerable reduction of the total design bending moment is found when the load coincidence is properly considered instead of combining the maximum of each load.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Stochastic and deterministic combinations of still water and wave bending moments in ships


    Weitere Titelangaben:

    Stochastische und deterministische Kombinationen von Biegemomenten in Schiffen bei Glattwasser und im Seegang


    Beteiligte:
    Wang, X. (Autor:in)

    Erschienen in:

    Marine Structures ; 9 , 8 ; 787-810


    Erscheinungsdatum :

    1996


    Format / Umfang :

    24 Seiten, 7 Bilder, 4 Tabellen, 29 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Bending moments of ships

    Alexander, F.H. | Engineering Index Backfile | 1905


    Bending moments of ships among waves

    Alexander, F.H. | Engineering Index Backfile | 1911




    Amidship bending moments for ships in waves1

    Swaan, W.A. | IOS Press | 1959