DNV DNV CLASSIFICATION NOTES 31.7 [ Revised ]

Introduction

General

The DNV Rules for Classification of Ships may require direct structural strength analyses in case of a complex structural arrangement, or unusual vessel size.

This Classification Note describes the scope and methods required for structural analysis of container ships and also the background for how such analyses should be carried out. The description has been based on relevant Rules for Classification of Ships, guidance and software.

Structural analysis cruTied out in accordance with the procedure outlined in this Classification Note will normally be accepted as basis for plan approval.

Where in the text it is referred to the Rules for Classification of Ships, the references refer to the latest edition of the Rules for Classification of Ships.

Any recognised calculation method or computer program may be utilised provided the effects of bending, shear, axial and tor- ' sion deformations are considered when relevant.

If the wave loads arc calculated from a hydrodynamic analysis, it is required to use recognised software. As recognised sollwarc is considered all wave load programs that can show results to the satisfaction of the Society.