In an era of low oil prices operators are facing increasing challenges to reduce CAPEX and OPEX costs. There is a need to design and build offshore structures that are more cost effective, while reducing operating costs of existing structures, without compromising structural integrity or safety in operation. A key to driving efficiency and reducing costs is the concept of a cloud-based digital twin, a virtual image of an asset and all associated data supporting asset-centric engineering applications. Updated throughout the lifecycle, the digital twin is an aggregated database representing the as-is state of the asset at any point in time.
DNV GL’s Structure ecosystem solutions cover the complete needs for strength assessment and structural integrity management from initial design to eventual decommissioning. Through the digital twin it supports long term information management and provides a cost-effective collaboration platform available to all stakeholders. With its advanced analytical offshore structural engineering tools, and access to data from anywhere at any time, our ecosystem helps to ensure more profitable, safe, and sustainable operations of all types of fixed and floating offshore structures, including those supporting offshore wind turbines.
Offshore and marine structural engineering
Sesam is a world renowned software tool for design and analysis of fixed structures, including those supporting offshore wind turbines (OWT). It gives you the optimal basis for critical engineering decisions during the entire lifecycle of your asset.
Floating structure design and modification
Sesam is the market-leading software for hydrostatic, hydrodynamic and strength analyses of ships and floating offshore structures. With Sesam we help naval architects and engineers working with floating structure design and modification efficiently produce high quality hydrodynamic analyses with automatic load transfer to give an accurate prediction of resulting deformation and stresses. It is also possible to do intact and damaged stability analysis in accordance with common Codes of Practice.
Analysis of moorings and subsea umbilicals
Improving safety and performance of deepwate floating systems. Sesam is a proven solution for deepwater floating systems, mooring analysis and SURF (subsea, umbilical, riser, flowline) analysis.
Managing marine operations
Risk management of marine operations and offshore installation with 3D simulation and visualization. Sesam's modules Sima, Simo and Riflex let you visually simulate, test and evaluate marine operations ahead of offshore handling. These modules allow you to significantly reduce risk for tranportation, installation and lifting of fixed and floating structures, and installation of subsea equipment.
Pipeline design software
Based on many years of research and experience, we have developed special-purpose pipeline design software to make it easy for designers to document code compliance without the need to go to complex finite element analysis. In this way, extensive time and cost is saved for each project. Sesam's tool set contains a collection of six software modules to support offshore engineers to efficiently perform design analysis calculations on offshore pipelines.
Offshore wind turbine foundation analysis
Sesam for offshore wind is a tailor-made solution for structural strength analysis of both fixed and floating offshore wind turbine structures. Accounting for the combined effect of wind on the turbine blades and hydrodynamic loads on te support structure, ultimate limit state (ULS) and fatigue analysis can be performed on the supporting structures, be they fixed (gravity based or piled to the sea-bed) or floating (moored/tethered) vessels.
Upfront design optimization software
The engineering simulation software, Sesam's CAESES is an 'Upfront CAE' system that empowers engineers to achieve product designs with best-in-class performance. With the simulation-driven design of CAESES you can improve hydro- or aerodynamic performance, for example to achieve lover resistance and reduce pressure drop.
Ship structural analysis and design
Nauticus Hull is a software for strength assessment of hull structures. It offers all the tools you need for efficient hull design and verification according to IACS harmonized Common Structural Rules and DNV GL Rules for ships.
Marine propulsion design and analysis
Nauticus Machinery is a comprehensive software for fatigue, strength and vibration analysis in marine propulsion systems - bridging the gap between shaft teory and reality. The package includes easy-to-use calculation tools for shaft alignment, torsional vibration, gear faceload and rating, shaft fatigue, crankshaft fatigue, propeller blades and controllable pitch mechanism.