DNV DNV CLASSIFICATION NOTES 31.2 PDF

General

The "Rules for Classification of Ships" (hereafrer referred to as "the Rules") Pt.5 Ch.2 Scc.4 and Scc.7 give several requirements for structural analyses including loads and acceptance criteria to be applied for the hull structures of General Cargo Cru1iers, Ro/Ro and Car Carriers.

For girders being parl of a complex 2-dimensional or 3-dimensional structural system, lhc Rules require a complete structural analysis to be carried out. It should be show that the stresses will be wilhin acceptable limits when loaded in accordance with described design load cases.

This Classification Not.c describes the scope and methods required for such slruclural analyses including the load cases and the acceplable stress level. Jn case there are differences between the Rules and this Classification Note, the current ship Rules prevail.

Any recognized calculation method or computer program for stmctural response may be applied, provided the effects of bending, shear and axial deformations arc considered when relevant.

If the wave loads arc calculaled from a direct wave load analysis. it is required to use reco~nised software. As recognised sofuvare is considered all accepted wave load programs that can show rcsulls to tl1e satisfaction of the Class Society.

Strength analysis carried out in accordance with the procedure outlined in this Classificalion Note will nonnally be accepted as basis for class approval.