CRITICAL WAVE EPISODES FOR ASSESSMENT OF ROLL

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    Abstract

    The statistical distribution of parametric induced roll angles is estimated using the first order reliability method (FORM), well-known from structural reliability problems. To illustrate the proposed procedure the roll motion is modeled by a simplified non-linear procedure taking into account the time-varying restoring moment and the heave acceleration. The result is the mean outcrossing rate of the roll angle together with corresponding most probable wave scenarios (critical wave episodes), leading to specific maximum roll angles. The procedure is computationally very effective and can thus be applied for determination of ship specific combinations of heading, speed and sea states to be avoided.
    Original languageEnglish
    Title of host publicationIMDC'06 : The Ninth International Marine Design Conference
    Number of pages735
    VolumeVol. 2
    Place of PublicationAnn Arbor, Michigan
    PublisherUniversity of Michigan
    Publication date2006
    Pages399-411
    Publication statusPublished - 2006
    Event9th International Marine Design Conference - University of Michigan, Ann Arbor, MI, United States
    Duration: 16 May 200619 May 2006

    Conference

    Conference9th International Marine Design Conference
    LocationUniversity of Michigan
    Country/TerritoryUnited States
    CityAnn Arbor, MI
    Period16/05/200619/05/2006

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