DNV DNV-RU-SHIPS PART 6 CHAPTER 9 PDF

General

The present edition of the rules includes additions and amendments approved by the Executive Committee as of November 2011, and supersedes the January 2011 edition of the same chapter.

The rule changes come into force as indicated below.

Text affected by the main rule changes in this edition is highlighted in red colour. However, where the changes involve a whole chapter, section or sub-section, only the title may be in red colour.

This chapter is valid until superseded by a revised chapter. Main changes coming into force 1 July 2012

• Section 1 General Requirements

— A104: The required stability tasks are further specified

— A303: Requirement added for the software to give a warning when damage calculations are not updated (in case of direct calculations)

— A304: Additional draught check required for certain vessels.

• Section 2 Approval

— A204: Operation/User manual only to be submitted if tailor made for a ship (type approved software) (see table A1)

— A208: Some adjustment made in the requirement for content of operation/user’s manual

— A210: Listing of damage results (direct damage calculations) to be shown in summary table

— A303: Longitudinal strength: Tolerances for check of results in vessel’s ends adjusted

— A400: Handling of updates/new version of software, and update of vessel data further explained/clarified.

• Section 3 Certification

— A210: Issues related to testing on board on preliminary or final version of the software clarified.

• Section 4 Additional class notation LCS-DC

— A201/B204: Option added for checking longitudinal strength after damage for ships with the optional LCS-DC notation

— B100: Requirement for documentation of hardware related to the LCS-DC notation is altered some

— B103: The requirement for documentation of calculation of damage cases further specified