bv船级无限航区拖轮舾装数计算书(equipment number calculation)

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1、total3page3REVISIONRECORD修改记录REVISION版本REVISIONBASIS修改依据REVISER修改人DATE日期REMARK备注Subject题图：EQUIPMENTNUMBERCALCULATION舾装数计算书Designed编制FionaYanChecked校对App'ved审核Date日期2012.10.09Shipname船名：Pages页数3total3page334mTUG34m拖轮ApprovaldesignDrawingNO：YF-2012-XYF110-H35Equip

2、mentNumberCalculationTheequipmentnumberoftheshipcomplieswiththerequirementinCh10,Sec4ofBUREAUVERITAS.1.Accordingto[2.1.2],wecanseetheformulaasfollows:EN=△2/3+2hB+0.1A=219.49Where:Mouldeddisplacement：△=728.10Freeboard：a=1.20mDraft:d=3.50mBreadth:B=10.00mh=a+∑hn=1

3、.20+2.45+2.7=6.35mA=83.76+15.47+16.35=115.58m22.ObtainedfromTab1,welearnthatthenumberofanchorsisthree,andthemassofeachanchoris660kg.3.Accordingto[3.1.3],WhereHHPanchorsareusedasboweranchors,themassofeachanchoristobenotlessthan75%or50%,respectively,ofthatrequired

4、forordinarystocklessboweranchorsinTab1.So:660×0.75=495kg,themassofeachboweranchorisequalto495kg.total3page31.Totalmassofanchorstocomplywithtotalmassfromtable1,asoer[3.2.2].Totalmasstobe1485KG++2.ObtainedfromTab1,wealsolearnthatthediametersofthechaincablesare26mm

5、forQ1chainor22mmforQ2chainintheship.Thetotallengthofthechaincablesis302.5m.3.AccordingtoTab3,thebreakingloadofeachtowlineis129KN,andthereisonesteelwirewhoselengthis180m.Meanwhile,thebreakingloadofeachmooringlineis64KN,andtherearefoursteelwireswhoseindividualleng

6、this120m.