Evaluation of long-term extreme response statistics of jack-up platforms

Mark Cassidy, P.H. Taylor, R. Eatock Taylor, G.T. Houlsby

    Research output: Contribution to journalArticle

    50 Citations (Scopus)

    Abstract

    This paper is concerned with the models appropriate for the dynamic assessment of jack-ups, concentrating particularly on the long-term response due to random ocean waves and on work-hardening plasticity models used for spud-can response. A methodology for scaling of short-term statistics, calculated using a Constrained NewWave technique, is shown in a numerical experiment for an example jack-up and central North Sea location. The difference in long-term extreme response statistics due to various footing assumptions is emphasised. Results for two environmental load conditions are described (one excluding and one including wind and current effects) and the role of sea-state severity in the variation of short-term extreme response statistics is also highlighted. (C) 2002 Elsevier Science Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)1603 - 1631
    JournalOcean Engineering
    Volume29
    Issue number13
    DOIs
    Publication statusPublished - 2002

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