简介：—Mostterminalsfortankersarepiersandseaislands,whileothertypesincludesinglepointmooringsandmultiple-buoymoorings.TheLNGandLPGcarriermooredtothejettyisaverycommonterminalfortransferofgasinopenseas.ItisimportanttoestimatethemotionsandlinetensionsoftheLNGcarrierwhenitmoorstoajettyinmetoceanenvironment.Normally,themotionsoftheLNGcarrierwouldberestrictedbytheloadingarm,whichisconnectedtoLNGcarrier＇smanifold.Anexampleof125,000m~3LNGcarriermooredtoajettyexposedtoasetofenvironmentconditionsisgiven.AmathematicalmodelwhichisbasedontheequationsofmotioninthetimedomainisusedtotheanalysisofLNGmooredtoanoffshorejettyexposedtowaves,swell,windandcurrent.Bymeansofatimedo-maincomputerprogramTERMSIMcomputationsarecarriedouttodetermineandoptimizethelay-outand/ororientationofthejettyandmooringgearintermsofforcesinmooringlinesandfendersandtheenvelopeofmotionsoftheloadi