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spool pieces) Clumped line attachments, drag chains or flex joints Non-isotropic Coulomb friction with seabed & elastic solids Line Clashing for external clash modelling between lines Line Contact for pipe-in-pipe, piggybacks, J-tube pulls, bend
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ORCAFLEX RISER TORSION FREE
ModellingObjectsA wide range of objects, each very powerful, easily allows simple or complex models to be builtLINES Fully coupled bending, torsion and axial stiffness Bend Stiffener / Tapered Stress Joint model generation Centrifugal internal flow effects included Slug flow and free flooding options for line contentsMultiple coatings and linings can be defined Equivalent pipe setup tool Bending stiffness, drag and added mass can be non-isotropic Axial, bending and torsional stiffness can be nonlinear 3D hysteresis model available for bending Rayleigh damping with or without geometric stiffness Line CofG may be displaced from geometric centre Pre-bend can be modelled (e.g.
ORCAFLEX RISER TORSION SOFTWARE
Improved lateral seabed modelling Thermal / pressure expansion & contraction in pipes Line results at nodes Software-based licencing Electronic software distribution Version 10.1 (October-2016) Constraints object to fix, or impose, individual DoFs Frequency domain includes WF & LF calculated vesselsMid-line connections: mid-nodes connect to objectsMulti-threading improved for >64 processors or NUMA Direct tension / torque coupling Line added mass now a function of height above seabed Vertical current stretching option Time history files optionally stored in OrcaFlex Time history cycle histograms directly includedFeaturesHighontheDevelopmentListSee /Support/OrcaFlex for more Features related to mooring analysis Diffraction analysis Aero-elastic modelling for wind turbines Spatial variation and spatial coherence for wind Restarts ModificationMorison elements, to represent viscous dragMulti-level undo and redo when editing data Release during simulation of supports and constraints Properties report for compound objects Histogram collation across multiple simulations Coupled-object modal analysis
ORCAFLEX RISER TORSION FULL
Vessel wave shielding (sea state RAOs) Water entry & exit slam loads Full description of wind, wave and current Flat, 2D or 3D seabed profile Linear elastic, non-linear hysteretic & P-y soil Binary and / or text input files Fatigue analysis Extreme value statistics Modal analysis VIV and interference analysis Pipelay and riser code checks Comprehensive range of automation tools Complete Matlab, Python & DLL interfaces Parallel processing (at no extra cost) Batch processing for volume analyses Distributed OrcaFlex optimises multi-licence use Full GUI with wire frame and shaded viewsMajor Changes in Last Two ReleasesFull details for all releases at /Support/OrcaFlexVersion 10.2 (October-2017) Line feeding: haul in and pay out nodes Choice of vessel calculation mode, filtering or QTF SummaryofKeyFeatures 3D, nonlinear, large displacement analysis Fully coupled tension, bending & torsion Accurate, efficient and proven FE formulation Robust line compression / snatch modelling External line-on-line clash & sliding contact Internal line-in-line impact & sliding contact Modelling of post-contact behaviour Linear & nonlinear elastic contact stiffness Line slug flow and free-flooding effects Nonlinear time domain (implicit & explicit) Linear frequency domain (1st & 2nd order) Constraints to fix or impose individual DoFs Line feeding (haul in and pay out nodes) Fully coupled vessel - line analysis Comprehensive vessel load modelling Multi-body hydrodynamic coupling Full sum and full difference QTFs O OrcaFlexTechnicalSpecificationProfessional Software forProfessional Engineers