PD ISO-TR 9814 2025.docx

PDISO/TR9814:2025Shipsandmarinetechnology-Goodpracticesofpreventingcapsizingduringturningofshipswithlargeprofileheightbsi.NationalforewordThisPublishedDocumentistheUKimplementationofISO/TR9814:2025.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeSME/32,Shipsandmarinetechnology-Steeringcommittee.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.ThispublicationisnottoberegardedasaBritishStandard.©TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539296327ICS47.020.01CompliancewithaPublishedDocumentcannotconferimmunityfromlegalobligations.ThisPublishedDocumentwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30June2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedPDISO/TR9814:2025TechnicalReportISO/TR9814Firstedition2025-06Shipsandmarinetechnology一GoodpracticesofpreventingcapsizingduringturningofshipswithlargeprofileheightNaviresettechnologiemaritimeBonnespratiquesdepreventionduChavirementIorsduviragedesnaviresagrandehauteurdeprofitReferencenumberISO/TR9814:2025(en)COPYRIGHTPROTECTEDDOCUMENT©ISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandPage,ivContentsForewordIntroduction1Scope12Normativereferences.13Termsanddefinitions.i4Abbreviatedterms25Analysisofcapsizeaccidentsoffiveships5.1 General5.2 Shipcategoriesbasedoncargospacerequirements5.2.1 Weightcarrier5.2.2 Volumecarrier5.2.3 Areacarrier5.3 Analysisofcapsizeaccidents5.3.1 General5.3.2 Similarities5.3.3 Differences3344444446EffectofKGontheGZcurve6.1 KGanditsroleincapsizingaccidents6.2 CharacteristicsofhullformandGZcurves6.2.1 General6.2.2 Hullformswithtwoin11ectionpointsalongtheGZCUrVe9997Threegoodpracticestopreventcapsizingduringturningofships.7.1 General7.2 Semi-automaticincliningtestsbeforeloadeddeparture7.2.1 General7.2.2 Featuresofincliningtestbeforedeparture7.2.3 Stabilityscreeningwithoutincliningtest7.3 Maximumheelinganglewhileturning7.3.1 General7.3.2 Maritimeautonomoussurfaceships7.3.3 Considerationsoncargoslippage7.4 Precisecalculationoffreesurfacemoment(FSM)7.4.1 SlacklimitofNAPAsoftware7.4.2 FSMat98%fillinglevel7.4.3 Improvementofstabilitycalculationsoftware1010101011121414151617171718AnnexA(informative)Casesofcapsizingaccidents19AnnexB(informative)Additionalinformationonshipfeatures28Bibliography30ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(Seewww.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrightsinrespectthereof.Asofthedateofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.However,implementersarecautionedthatt