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1、TheNavalArchitect船舶专业英语1TheNavalArchitect12Definitions,PrincipalDimensions53MerchantshipTypes124ShipDesign185GeneralArrangement226ShipLines277ShipEquilibrium,StabilityandTrim318EstimatingPowerRequirements369ShipMotions,Manoeuvrability4110TheFunctionofSh
2、ipStructuralComponents4411StructuralDesign,ShipStresses4812ClassificationSocieties5413Shipyard,Organization,Layout5914Planning,FromContracttoWorkingPlans6215LinesPlanandFairing,FabricationandAssembly6416LaunchingandOutfitting6817SeaTrials7018MarineEngin
3、es73-78-TheNavalArchitectLessonOneTheNavalArchitectAnavalarchitectaskedtodesignashipmayreceivehisinstructionsinaformrangingfromsuchsimplerequirementsas“anoiltankertocarry100000tonsdeadweightat15knots”toafullydetailedspecificationofpreciselyplannedrequir
4、ements.Heisusuallyrequiredtoprepareadesignforavesselthatmustcarryacertainweightofcargo(ornumberofpassengers)ataspecifiedspeedwithparticularreferencetotraderequirement;high-densitycargoes,suchasmachinery,requirelittleholdcapacity,whilethereverseistruefor
5、low-densitycargoes,suchasgrain.Deadweightisdefinedasweightofcargoplusfuelandconsumablestores,andlightweightastheweightofthehull,includingmachineryandequipment.Thedesignermustchoosedimensionssuchthatthedisplacementofthevesselisequaltothesumofthedeadweigh
6、tandthelightweighttonnages.Thefinenessofthehullmustbeappropriatetothespeed.Thedraft------whichisgovernedbyfreeboardrules------enablesthedepthtobedeterminedtoafirstapproximation.Afterselectingtentativevaluesoflength,breadth,depth,draft,anddisplacement,th
7、edesignermustachieveaweightbalance.Hemustalsoselectamomentbalancebecausecentresofgravityinbothlongitudinalandverticaldirectionsmustprovidesatisfactorytrimandstability.Additionally,hemustestimatetheshafthorsepowerrequiredforthespecifiedspeed;thisdetermin
8、estheweightofmachinery.Thestrengthofthehullmustbeadequatefortheserviceintended,detailedscantlings(framedimensionsandplatethicknesses)canbeobtainedfromtherulesoftheclassificationsociety.Thesescantingsdeterminetherequisiteweightofh
