This paper is concerned with evaluating the effect of heavy weather avoidance on the long-term wave-induced loads on ships. Two hydrodynamic codes, VERES based on a 2D strip theory and WASIM based on a 3D Rankine panel method, are employed to calculate the wave-induced loads and motions on various vessels. Two models for heavy weather avoidance are envisaged. The first one is based on the assumption that operational criteria relevant to vertical acceleration, green water, and bottom slamming are fulfilled. The second one is based on the assumption that the sea state forecasts are available to the shipmaster and that rerouting is made. Based on the first model, the effect of the heavy weather avoidance on the long-term wave-induced hull girder loads is evaluated. In particular the effect of hydrodynamic analysis methods and wave scatter diagram are also assessed. The calculated values are compared with those given in ship rules. The results show that several factors should be critically assessed in evaluating the accuracy of the ship rule values.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of avoidance of heavy weather on the wave-induced load on ships


    Additional title:

    Einflüsse des Umfahrens von Schlechtwettergebieten auf die Seegangsbelastung von Schiffen


    Contributors:
    Shu, Zhi (author) / Moan, Torgeir (author)


    Publication date :

    2008


    Size :

    7 Seiten, 19 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Longitudinal stress in ships during heavy weather

    Stocks, C.H. | Engineering Index Backfile | 1937



    Enhancement of Wave Induced Load Effects for Ships in Abnormal Conditions

    Rathje, H. / Schellin, T. E. / Royal Institution of Naval Architects et al. | British Library Conference Proceedings | 1997


    Automatic collision avoidance of ships

    Xue, Y / Lee, B S / Han, D | SAGE Publications | 2009


    Automatic collision avoidance of ships

    Xue, Y. | Online Contents | 2009