vamseeachanta Orcaflex Operability
When to Use
- Operability envelope generation for mooring systems
- Weather downtime calculations from scatter diagrams
- Critical heading identification for design loads
- Multi-sea-state analysis (1yr, 10yr, 100yr return periods)
- Tension limit assessment (intact vs damaged conditions)
- Annual operational availability studies
- Polar coordinate visualization of system limits
Prerequisites
- OrcaFlex simulation results (.sim files) for multiple headings
- Wave scatter diagram (Hs-Tp probability matrix)
- Python environment with
digitalmodelpackage installed - Tension limits for intact and damaged conditions
Python API
Basic Operability Analysis
from digitalmodel.solvers.orcaflex.operability_analysis import OperabilityAnalyzer
# Initialize analyzer
analyzer = OperabilityAnalyzer(
simulation_directory="results/.sim/",
output_directory="reports/operability/"
)
# Generate operability envelope
*See sub-skills for full details.*
### Weather Downtime Calculation
```python
from digitalmodel.solvers.orcaflex.operability_analysis import OperabilityAnalyzer
import pandas as pd
analyzer = OperabilityAnalyzer(
simulation_directory="results/.sim/",
output_directory="reports/"
)
# Load wave scatter diagram
*See sub-skills for full details.*
### Critical Headings Analysis
```python
from digitalmodel.solvers.orcaflex.operability_analysis import OperabilityAnalyzer
analyzer = OperabilityAnalyzer(
simulation_directory="results/.sim/",
output_directory="reports/"
)
# Identify critical headings
critical = analyzer.generate_critical_headings_report(
*See sub-skills for full details.*
### Comprehensive Report Generation
```python
from digitalmodel.solvers.orcaflex.operability_analysis import OperabilityAnalyzer
analyzer = OperabilityAnalyzer(
simulation_directory="results/.sim/",
output_directory="reports/"
)
# Generate comprehensive HTML report with all analyses
report_path = analyzer.generate_comprehensive_report(
*See sub-skills for full details.*
## Related Skills
- [orcaflex-modeling](../orcaflex-modeling/SKILL.md) - Run OrcaFlex simulations
- [orcaflex-post-processing](../orcaflex-post-processing/SKILL.md) - Extract results
- [orcaflex-extreme-analysis](../orcaflex-extreme-analysis/SKILL.md) - Extreme value extraction
- [mooring-design](../mooring-design/SKILL.md) - Mooring system design
## References
- API RP 2SK: Design and Analysis of Stationkeeping Systems
- DNV-OS-E301: Position Mooring
- ISO 19901-7: Stationkeeping Systems
- Source: `src/digitalmodel/solvers/orcaflex/operability_analysis.py`
## Sub-Skills
- [Basic Operability Configuration (+1)](basic-operability-configuration/SKILL.md)
- [Simulation Setup (+2)](simulation-setup/SKILL.md)
## Sub-Skills
- [Error Handling](error-handling/SKILL.md)
## Sub-Skills
- [Version Metadata](version-metadata/SKILL.md)
- [[1.0.0] - 2026-01-17](100-2026-01-17/SKILL.md)
- [Operability Workflow](operability-workflow/SKILL.md)
- [Operability Envelope Plot (+2)](operability-envelope-plot/SKILL.md)
- [CSV Matrix Format](csv-matrix-format/SKILL.md)
- [With OrcaFlex Modeling (+1)](with-orcaflex-modeling/SKILL.md)