AQWA-Intro-14.0-WS02.3-AQWAWB-Articulations

WS2.3-1ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012IntroductiontoANSYSAQWACustomerTrainingMaterialWorkshop2.3ANSYSAQWAArticulationsWorkshop2.3–ANSYSAQWAArticulationsWS2.3-2ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialFPSO&Turret•Createhydrodynamicdiffractionsystem(HDsystem)•Importmulti-partCADgeometry•Createanchorpointsandmooringlines•Createturretarticulation•Setuphydrodynamictimeresponsesystem(HTRsystem)Workshop2.3–ANSYSAQWAArticulationsWS2.3-3ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialCreateHDSystem•SetUnits•AddHDsystembydrag&dropontoWBProjectSchematicpage.•RMBonGeometrycell,ImportGeometryBrowse,andbrowsetoFPSO&turret.x_tWorkshop2.3–ANSYSAQWAArticulationsWS2.3-4ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialImportCADGeometry•DoubleclickonGeometrycelltoopenDesignModeler•SelectmetersaslengthunitWorkshop2.3–ANSYSAQWAArticulationsWS2.3-5ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterial•CombinethebodiesassociatedwiththeFPSObyselectingtheminthetreeandrightclickFormNewPart•HerewehaverenamedthecombinedpartasFPSOhull•CloseDesignModelerCreatePartWorkshop2.3–ANSYSAQWAArticulationsWS2.3-6ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialAddingAQWASpecificParameters•Double-ClickonModelCellonProjectSchematic•Theunitswilladoptthoseusedinthegeometrycreation,butmaybemodifiedfromtheUnitsmenuitemWorkshop2.3–ANSYSAQWAArticulationsWS2.3-7ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialGlobalParameters•Setthewaterdepthto500mintheDetailsofGeometrypanel.Workshop2.3–ANSYSAQWAArticulationsWS2.3-8ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterial…ProvideAdditionalAQWAElements•Foreachvessel/structure(FPSOhull&Turret)definedprovideapointmasselementWorkshop2.3–ANSYSAQWAArticulationsWS2.3-9ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialFPSOPointMassInput•Asbefore,ifMassDefinitionisprogramcontrolledthemasswillequalthedisplacement.•SetkXX,kYYandkZZandVCGforFPSOhulltothesamevaluesasusedintheshipmodelinWorkshop2.1Workshop2.3–ANSYSAQWAArticulationsWS2.3-10ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialTurretPointMassInput•SettheMassdefinitiontomanualandspecifyamassof20tonnes•SetkXX,kYYandkZZto;–kXX=3.4–kYY=2.5–kZZ=2.6•SettheVCG(Zcoordinate)to11.5mandtheLCG(Xcoordinate)to220mWorkshop2.3–ANSYSAQWAArticulationsWS2.3-11ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialAnchorConnectionPoints•SelecttheGeometryobjectinthetreeandaddthreefixedpointsforthemooringsystemrepresentingtheanchorlocations•Setthex,y,zcoordinatesasfollows;–Anchor1-700m,700m,-500m–Anchor2-700m,-700m,-500m–Anchor31300m,0m,-500mWorkshop2.3–ANSYSAQWAArticulationsWS2.3-12ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialConnectionPoints•SelectthepartFPSOhullandaddaconnectionpoint•SettheX,Y,Z,coordinatesasfollowsandrenameTurretConnection;–TurretConnection220m,0m,13m•SelectthepartTurretandaddfourconnectionpoints•DefinenamesandsettheX,Y,Z,coordinatesasfollows;–FPSOConnection220m,0m,12m–Mooring1217.5m,4.33m,11m–Mooring2217.5m,-4.33m,11m–Mooring3225m,0m,11m•Checkthelocationsoftheconnectionpoints.Notethatallcoordinatesdefinedareintheglobalsystem(FRA)Workshop2.3–ANSYSAQWAArticulationsWS2.3-13ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialSetUpMooringLineProperties•AsinWorkshop2.2wearegoingtousecompositecatenarylinesforthemooringsystem.Thesearelinesmadeupofoneormoresegmentswithvaryingpropertiese.g.chain/wire/chain•SelectConnectionsCatenaryDataInsertCatenaryDataCatenarySection.Workshop2.3–ANSYSAQWAArticulationsWS2.3-14ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialMooringLineProperties•ProvidedataforMass/UnitLength,EquivalentCrossSectionalArea,Stiffness,MaximumTensionandEquivalentDiameterasbelowforthreecatenarysectionssimilartothoseusedinthepreviousWorkshop.Workshop2.3–ANSYSAQWAArticulationsWS2.3-15ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterialMooringlineConnections•ToaddalineselectConnectionsInsertConnectionCable•DefinelineconnectionsandcompositionWorkshop2.3–ANSYSAQWAArticulationsWS2.3-16ANSYS,Inc.Proprietary©2012ANSYS,Inc.Allrightsreserved.Release14.0January2012CustomerTrainingMaterial…MooringlineConnections•Createcable1usingtheinformationhighlightedopposite•Thecompositionofthelineisnowdefined–Segmentallocation–Linelength•Segmentsaredefinedfromtheanchorlocationuptotheconnectionpointontheturret•Section1typeshouldbesettoCatenaryse