DNV Software releases new versions of the industryleading software tools GeniE, HydroD and DeepC. “The new enhancements make analysis of floating structures faster and easier,” says Elling Rishoff, Managing Director, DNV Software.
GeniE, HydroD and DeepC make up a state-of-the-art complete toolbox for the design and analysis of floating structures. Enhancements are being implemented with a focus on making analysis of moored floating structures easier and more reliable.
“Additionally, the modelling tools have been made much more efficient and easy to use, the need for remodelling has been minimised, and there is seamless integration between the different software tools,” says Elling Rishoff.
GeniE – engineering for the future
GeniE represents the latest generation software for design and analysis of offshore and maritime structures. The development has been motivated and driven by end-user needs for solutions offering faster modelling speed, tightly integrated with advanced tools for strength assessment. GeniE builds on DNV Software’s long-time experience in the offshore and maritime industries and on recent advances in IT technology.
GeniE can be used for design analyses of marine structures composed of beams and plates. Typical examples are tankers, bulk carriers, container ships, FPSOs, jackets, jack-ups, topsides, modules, flare tower bridges, helidecks, underwater installations, cranes and crane pedestals. For seabed-supported structures (jackets and jack-ups) the hydrodynamic and soil properties are an integral part of the analysis models.
Structure modelling
Modelling in 3D graphics makes the engineer more productive and eases the understanding by other disciplines, such as quality verification. Import and export GeniE has powerful features for data exchange with other sources. This eliminates the need for repetitive work and produces significant savings when preparing reports.
Masses, loads and equipments
All loads are applied independently of the analysis model; the load mapping is done automatically by the program. This means that the loads or the mesh density can be altered independently of each other.
Results processing
By integrating the evaluation and documentation of results with modelling in the same user interface, GeniE speeds up the iterative engineering process.
HydroD – wave loads and motion responses on marine structures
HydroD makes hydrodynamic analysis easier and faster due to the graphic display, built-in data checks and inclusions of a new module for handling hydrostatic and stability analyses. Different loading conditions for stability analysis can be modelled directly in HydroD, using the same model as the hydrodynamic analysis. HydroD also provides automatic transfer of the hydrodynamic loads to the structural analysis, which always has been one of the strong points of Sesam.
HydroD can be used for ballasting, hydrostatic and hydrodynamic analyses of large fixed and floating structures. Typically these may be gravity-based platforms, barges, ships of any type, semisubmersibles, tension-leg platforms, floating production storage units, or spar buoys. Depending on the scope of work, a typical workflow would be to import a model containing data for the structure, compartments and mass distribution, find the equilibrium position, perform a stability analysis, conduct the hydrodynamic assessments, and finally export the loads and accelerations to a subsequent structural analysis.
DeepC – improving confidence in deepwater floating systems
DeepC provides unique modelling, analysis and post-processing capabilities for the riser and mooring system of floating structures. The results of the hydrodynamic analysis are automatically transferred to DeepC. This provides efficient and accurate analysis of moored offshore structures, including the coupling effects between wave loads, mooring lines and risers.
DeepC can be used for carrying out coupled analysis. Typical examples are FPSOs, semisubmersibles, spars, and TLPs.
With the multi-body extension, the program is well suited to predicting hydrodynamic and structural interactions when a series of vessels, moorings, and risers lie in close proximity (side-by-side configuration).
Analysis of mooring systems may be performed to find wave-frequency and low-frequency vessel motions and mooring line tensions (Mimosa). Several options are available for analysis of the properties of the mooring system and individual lines. DeepC comes in packages for coupled analysis (Simo and Riflex), for riser analysis (Riflex), for marine operations (Simo) and mooring analysis in the frequency domain (Mimosa).