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OrcaFlex 11.5 is a marine dynamics software developed by Orcina for analyzing offshore systems like moorings, risers, and cables. The latest release is version 11.5c, finalized on December 12, 2024, with new features including:

• Modeling Enhancements: Support for buried/covered lines, upheaval buckling, pipe ratcheting, and synthetic ropes with rate-dependent stiffness.
• Turbine Improvements: Initial rotor angular velocity and runtime performance upgrades.
• Frequency Domain Solver: Now supports multibody groups for hydrodynamic coupling, vessel wind/current load results, and post-analysis changes to wave/wind data.
• User Interface: Modeless data forms for simultaneous interaction with multiple forms, improving workflow.
• Spring/Dampers: New feature for non-rigid connections between bodies, enhancing mooring system modeling.

Product: OrcaFlex 11.5C

Orcina is a professional engineering software house specialising in the fields of offshore dynamics, renewables, risers, moorings, towed systems and installations.

 

At the heart of our activities is OrcaFlex, the market-leading numerical simulation program for modelling flexible and rigid risers, moorings, wet renewables, cable and pipe lay, pipeline pull-in, towed arrays, installation sequences and many other systems. OrcaFlex provides the best-in-class complete design environment for offshore dynamics.

OrcaFlex is a powerful and widely used software package for the dynamic analysis of marine systems. Developed by ORCAFLEX Consultants Ltd , it is extensively utilized across offshore oil & gas, renewable energy, subsea engineering, and maritime industries to simulate and analyze the behavior of floating structures, mooring systems, risers, cables, and lifting operations.

The software provides high-fidelity time-domain simulations that enable engineers to assess system performance under realistic environmental conditions such as waves, currents, and wind.

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Key Features

Marine Systems Simulation

• Comprehensive modeling of fixed and floating offshore systems
• Time-domain dynamic simulation with full non-linear behavior

⚓ Mooring and Riser Analysis

• Static and dynamic analysis of single and multi-point mooring systems
• Flexible and rigid riser modeling including touch-down zone behavior
• Fatigue life estimation and load cycle counting

️ Lifting and Deployment Operations

• Modeling of crane and vessel motions
• Subsea lowering through splash zone
• Tug assistance and towing simulations

Hydrodynamic Modeling

• Wave theories: Regular, irregular (JONSWAP, Pierson-Moskowitz), and user-defined spectra
• Current and wind profiles
• Vessel hydrostatics and hydrodynamic coefficients

Results Visualization

• Real-time animation of system motion and deformation
• Graphical output of forces, tensions, accelerations, angles, etc.
• Statistical and spectral post-processing tools

Data Management

• Extensive scripting capabilities via Python API
• Batch processing and parametric studies
• Integration with other engineering tools and data formats

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Application Areas

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Why Choose OrcaFlex?

✅ High accuracy and reliability in complex dynamic simulations
✅ Industry-standard tool trusted by leading engineering firms and operators
✅ User-friendly interface combined with advanced physics-based modeling
✅ Strong support and continuous development aligned with industry needs
✅ Excellent visualization and reporting tools for clear communication of results

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Supported Standards & Codes

• API RP 2SK, API RP 2A
• DNV GL RP-E401, DNV OS-E401
• ISO 19901-7, ISO 19902
• ABS Guidelines for Mooring Systems

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System Requirements

• Windows 7/10/11 (64-bit)
• Minimum 8GB RAM (16GB+ recommended)
• OpenGL-compatible graphics card
• 2GB free disk space

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Training & Support

OrcaFlex offers:

• On-site and online training courses
• Detailed technical manuals and tutorials
• Responsive technical support team
• Annual user group meetings and webinars

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Conclusion

OrcaFlex is an essential tool for any marine or offshore engineer involved in the design, analysis, and operation of complex marine systems. Its robust simulation engine, intuitive interface, and comprehensive analysis capabilities make it the preferred choice for solving real-world offshore challenges.

Whether you’re analyzing a deepwater mooring system, simulating a subsea cable installation, or assessing the dynamic response of a floating wind turbine, OrcaFlex provides the tools needed to ensure safe, efficient, and cost-effective operations.