NAPA Online Manuals 2013.1 Offshore Structures

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1、NAPAManuals2013.1OffshoreStructures©NAPA1992-2013Allrightsreserved.NAPAManuals2013.1OffshoreStructuresTableofContents1OffshoreStructures.....................................................................11.1General.........................................................................

2、.......11.2Referencesystemconsiderations..........................................................11.2.1Maindimensionsanddefaultobjects..................................................11.2.2Precisionandaccuracy..............................................................21.2.3Calculatio

3、nsections.................................................................31.2.4Calculationmethods................................................................31.2.5Azimuthangleandheelingdirection..................................................31.3Modelling...........................

4、....................................................41.3.1Hullobject.........................................................................51.3.1.1Usinggeneralgeometrictransformations..........................................61.3.1.2Parametricdefinitions.................................

5、.........................81.3.1.3CreationofSTABHULL..........................................................91.3.1.4Effectofshellthickness.......................................................131.3.2Compartmentarrangement.........................................................131.4Over

6、turningmoments...................................................................131.4.1WindmomentdefinitionaccordingtoIMOMODUcode.................................131.4.2Windmodel......................................................................141.4.2.1Geometricobjects...............

7、.............................................151.4.2.2Surfaceorientationandcalculatedprojectedarea................................211.4.2.3Windmodeltables............................................................211.4.2.4Practicaladvice............................