ShipRight procedures are a comprehensive system of procedures aimed at ensuring high standards of safety, quality and reliability at the design stage and during construction. These procedures also extend, via Linked Supporting Services, to ensure that these standards are met through the operational lifetime of the ship.
Fatigue Design Assessment (FDA) procedures
These procedures are mandatory, in addition to plan approval requirements, for new ships where the ship type, size and structural arrangement demand. This includes new oil tanker and bulk carrier configurations over 190 metres in length for which the Common Structural Rules are not applicable. It can also be applied on a voluntary basis to new ships including those approved in accordance with the
Common Structural Rules¹.
In this procedure, the adequacy of critical structural details is assessed by comparing predicted fatigue life with that required for a given ship. The procedure incorporates the Structural Detail Design Guide and Direct Calculation approaches based on the spectral method of analysis.
¹ Where FDA is specified in addition to the application of the Common Structural Rules, the ShipRight Notation FDA plus will apply.
| ShipRight procedures | Date |
| FDA - Application and Notation | June, 2017 |
| FDA Container Ships - Trading Patterns | July, 2006 |
| FDA ICE Fatigue Induced by Ice Loading | July, 2011 |
| FDA Level 1 Procedure, Structural Detail Design Guide | 2009 |
| FDA Level 3 Procedure, Guidance on direct calculations | February, 2009 |