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OrcaFlex Features
Summary of key features
- Fully 3D, non-linear, large displacement analysis.
- Consistent and robust modelling of compression and snatching.
- Fully coupled tension, bending and torsion.
- Bend Stiffener / Tapered Stress Joint model generation.
- Rayleigh damping.
- Highly robust and accurate finite element formulation.
- Choice of implicit or explicit time integration methods (only peer group product with this capability).
- Fully coupled vessel/line analysis.
- Flat, 2D profile or 3D seabed surface.
- Non-isotropic Coulomb friction for a broad range of contact objects.
- Best of class fully interactive GUI.
- System visualisation as either wire frame or shaded view with perspective and hidden line removal.
- Modal analysis.
- Contact and clearance analyses.
- Fatigue analysis (regular, rainflow and spectral).
- Vortex induced vibration analysis (VIV).
- Wake Interference Modelling (Huse, Blevins, User Specified).
- Parallel processing to take advantage of multi-core and multi-processor hardware.
- Automation facilities for parametric, sensitivity and loadcase studies.
Analysis
- Full 3D modelling.
- Complete and partial quasi-static analysis.
- Extremely quick and robust static analysis.
- Time domain dynamic analysis with ramp-up (to minimise starting transients).
- Non-linear large displacement analysis, including line compression and snatch loads.
- Modal analysis.
- Contact, clashing and clearance analyses.
- Fatigue analysis (regular, rainflow and spectral).
- Fully coupled tension, bending and torsion.
- Vessel manoeuvres (forward speed and turn rate).
- Surface piercing fully modelled.
- Line setup wizard to set line lengths for specified tension or top angle.
Numerical Procedures
- Finite element model with 6 degrees of freedom at each segment end.
- Element formulation is extremely robust, accurate and widely applicable.
- Choice of implicit (constant or variable time step) or explicit time integration methods.
- Parallel processing to take advantage of modern multi-core and multi-processor hardware.
- Slow varying water particle loads can be computed at a larger time step than structural displacements.
- Facility for FFT re-construction of wave field from single point elevation time history.
- Fluid forces based on industry-standard Morison and cross-flow assumptions.
- 1st and 2nd order wave loads on floaters calculated from wave load RAOs and QTFs.
- Interactive Graphical User Interface.
- Visualisation as wire frame and/or shaded view with perspective and hidden line removal.
- Powerful Model Browser to organise and manage complex models.
- Drag and drop facilities to import data from pre-prepared OrcaFlex Library files.
- Group, move, show/hide, locate and lock operations can be applied to individual or user defined groups of modelling objects.
- Simple object replication.
- Batch processing.
- Batch script facility for generating systematic load case or parametric variations.
- Wave scatter conversion facility for easy processing of sea scatter tables.
- Comprehensive facilities for vessel RAO import, including graphical RAO realism checks.
- Dedicated import facilities for AQWA and WAMIT hydrodynamic data.
- Typical Line properties available through built-in wizard facility (for chains, ropes, wires, lines with floats, homogeneous pipes, hoses and umbilicals).
- Pipe Plasticity wizard.
- Powerful Variable Data structure allows many data items to be set as a function of other data.
- External functions admit user defined calculations (e.g. heave compensation devices, DPS systems etc.)
- Import facility for vessel motion and wave elevation time history.
- SI, US or User Defined units.
- Full and comprehensive context sensitive help.
Results Output
- Native Windows user interface.
- Shaded graphics (with perspective, lighting, hidden line removal etc.) for realistic, presentation ready, system visualisation.
- Unlimited multiple views and graphs of the model simultaneously visible.
- Workspace facility to manage 3D Views, graphs and spreadsheet windows.
- Replay wizard to prepare animations of multiple simulations and / or moving camera.
- AVI file export of animations to presentation applications such as Powerpoint.
- Results can be monitored at run time and during simulation replay.
- Output can be graphical (time histories, range and X-Y graphs), values (in text file or Excel spreadsheet format), statistical analysis and screen snapshots.
- Graphs and 3D images can be pasted into other Windows applications.
- Raw data and results of analyses can be exported as spreadsheets for further post processing.
- Excel post processing spreadsheet allows selected data to be extracted from multiple simulation files and processed.
- Reporting of vessel response to specified wave spectra.
Other Facilities
OrcaFlex | Applications | Features | Screenshots | Demo | Examples | Documentation | Validation | Hardware Requirements
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