The concept technologies in Sesam and Nauticus Hull give our customers many important advantages, including less time used from modelling to results, and the simplicity of making design changes. In the past few years, DNV Software has invested heavily to be at the forefront in this area; similar investments will be made for 2008, 2009 and 2010.

Design and verification of offshore structures has been a part of Sesam for several years. The introduction of concept modelling technologies during the Sesam 2000 project made it possible to significantly improve such tasks – in particular the optimisation and performance of parametric studies of a structure. The improvements are made possible by making the capacity model independent of the analysis model – in other words, many analyses can be performed without the need for recreating the capacity model.

Results from a punching shear check of tubular joints.
Results from a plate code checking based on the CSR bulk rules.

For offshore structures, this has been realised in GeniE, which supports the most recent beam code checking standards API/WSD, API/LRFD, Norsok, Eurocode and ISO.

It is a major goal of DNV to reduce the resources necessary for the classification of ships. One of the means to achieve such improvements is the ability to do code checking automatically based on the loading conditions as specified by the various standards. First out is the CSR bulk rules now supported by GeniE. Such improvements will also be to the benefit of the shipowners and shipyards building the vessels.

The CSR tank rules and relevant offshore codes such as RPC201 and API will soon be implemented to further reduce the elapsed time from modelling to final classification or design report.