Agent skill
orcaflex-code-check
Verify OrcaFlex model results against industry standards (DNV, API, ISO). Perform capacity checks, safety factor verification, and compliance reporting for offshore structures.
Install this agent skill to your Project
npx add-skill https://github.com/vamseeachanta/workspace-hub/tree/main/.claude/skills/engineering/marine-offshore/orcaflex/code-check
SKILL.md
Orcaflex Code Check
Version Metadata
version: 1.0.0
python_min_version: '3.10'
dependencies:
orcaflex-modeling: '>=2.0.0,<3.0.0'
structural-analysis: '>=1.0.0,<2.0.0'
orcaflex_version: '>=11.0'
compatibility:
tested_python:
- '3.10'
- '3.11'
- '3.12'
- '3.13'
os:
- Windows
- Linux
- macOS
Changelog
[1.0.0] - 2026-01-17
Added:
- Initial release with standards compliance checking
- Mooring line capacity verification
- Safety factor calculation
- Multi-standard support (DNV, API, ISO)
When to Use
- Verify mooring line tensions against MBL limits
- Check riser stress against allowable
- Validate safety factors per design codes
- Generate compliance reports for certification
- Design verification before fabrication
- Audit existing designs against current standards
Supported Standards
Mooring Systems
| Standard | Application | Key Checks |
|---|---|---|
| API RP 2SK | Stationkeeping | Safety factors, line capacity |
| DNV-OS-E301 | Position mooring | Tension limits, fatigue |
| ISO 19901-7 | Mooring systems | Capacity, redundancy |
Risers
| Standard | Application | Key Checks |
|---|---|---|
| API RP 2RD | Riser design | Stress, fatigue |
| DNV-OS-F201 | Dynamic risers | Stress, VIV |
| API STD 2RD | Design of risers | Combined loading |
Pipelines
| Standard | Application | Key Checks |
|---|---|---|
| DNV-OS-F101 | Submarine pipelines | Wall thickness, buckling |
| API RP 1111 | Pipeline design | Pressure containment |
Python API
Mooring Safety Factor Check
from digitalmodel.structural.structural_analysis.capacity import CapacityChecker
def check_mooring_safety_factors(
max_tensions: dict,
mbl_values: dict,
standard: str = "API_RP_2SK"
) -> dict:
"""
Check mooring line tensions against MBL limits.
*See sub-skills for full details.*
### Riser Stress Check
```python
from digitalmodel.structural.structural_analysis.capacity import CapacityChecker
import math
def check_riser_stress(
max_tension: float,
max_bend_moment: float,
internal_pressure: float,
external_pressure: float,
od: float,
*See sub-skills for full details.*
### Standards Lookup
```python
from digitalmodel.infrastructure.common.standards_lookup import StandardsLookup
# Initialize lookup
lookup = StandardsLookup()
# Search for relevant standards
results = lookup.search("mooring design")
for standard in results:
*See sub-skills for full details.*
### Generate Compliance Report
```python
def generate_compliance_report(
check_results: dict,
output_path: str,
project_info: dict
) -> str:
"""Generate HTML compliance report."""
html_content = f"""
<!DOCTYPE html>
*See sub-skills for full details.*
## Safety Factors Reference
### API RP 2SK (2015)
| Condition | Analysis | Safety Factor |
|-----------|----------|---------------|
| Intact | Quasi-static | 1.67 |
| Intact | Dynamic | 1.82 |
| Damaged | Quasi-static | 1.25 |
| Damaged | Dynamic | 1.43 |
### DNV-OS-E301
| Condition | Consequence Class 1 | Consequence Class 2 |
|-----------|---------------------|---------------------|
| ULS Intact | 2.20 | 2.50 |
| ULS Damaged | 1.50 | 1.65 |
| ALS | 1.00 | 1.10 |
### ISO 19901-7
| Condition | Category 1 | Category 2 |
|-----------|------------|------------|
| Intact | 1.67 | 2.00 |
| Damaged | 1.25 | 1.50 |
## Related Skills
- [orcaflex-post-processing](../orcaflex-post-processing/SKILL.md) - Extract results
- [orcaflex-extreme-analysis](../orcaflex-extreme-analysis/SKILL.md) - Find design loads
- [structural-analysis](../structural-analysis/SKILL.md) - Structural capacity checks
- [fatigue-analysis](../fatigue-analysis/SKILL.md) - Fatigue code checks
## References
- API RP 2SK: Design and Analysis of Stationkeeping Systems
- DNV-OS-E301: Position Mooring
- DNV-OS-F201: Dynamic Risers
- ISO 19901-7: Stationkeeping Systems for Floating Offshore Structures
- Source: `src/digitalmodel/infrastructure/common/standards_lookup.py`
- Source: `src/digitalmodel/modules/structural_analysis/capacity.py`
## Sub-Skills
- [Mooring Code Check (+1)](mooring-code-check/SKILL.md)
- [Before Code Check (+2)](before-code-check/SKILL.md)
## Sub-Skills
- [Error Handling](error-handling/SKILL.md)
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