简介：CoupleddynamicanalysisoftheDeepDraftMulti-Spar(DDMS)platformandthemooringsystemundertheactionofwavesandcurrentiscarriedoutinthetimedomain.Usingageometricallynonlinearfiniteelementmethod,themooring-linedynamicsissimulatedbasedonthetotalLagrangianformulation.WavegroupsareobtainedbytheJONSWAPspectrumandanempiricalwaveenvelopespectruminvolvingtwoenvelope-basedfactorsGroupHeightFactor(GFH)andGroupLengthFactor(GLF).Theresultsshowthatthewavegroupshaveasignificanteffectonthemotionresponsesoftheplatformandthemooringlinetensions.
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