学科分类
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1 个结果
  • 简介:Fortheglobalandstructuralfatiguestrengthanalysisofasemi-submersibleplatform,waveloadsunderdesigncon-ditionsarecalculatedbyuseofthethree-dimensionalboundarydementmethod.Methodsforcalculatingtheforward-speedfree-surfaceGreenfunctionarediscussedandacomputerprogramwiththisGreenfunctionisdeveloped.Accordingtothespecialrules,thewaveloadsunderseveraltypicaldesignconditionsoftheplatformarecalculated.Themaximumverticalbendingmoment,torsionmomentandhorizontalsplitforcearedeterminedfromaseriesofcontourmapsofwaveloadsforthewaveperiodof5to18secondsatacertainintervalandthewavephaseofO°to360°atacertaininterval.Thewaveheightisdeterminedbythefunctionofwaveperiodwithagivenexceedanceprobability.Themaximumwaveloadsunderthecombinationofwaveparametersareusedastheinputofhydrodynamicpressureinthethree-dimensionalfiniteelementanalysisprocess.Thetransferfunctionsofwaveloadsontheplatformareusedforthefatiguestrengthanal-ysisoftheK-tubularjointandthesub-modelofthestructure.

  • 标签: WAVE and WAVE load boundary ELEMENT