# Mooring Design Design Check Matrix

> Sub-skill of mooring-design: Design Check Matrix (+2).

- Skill: `vamseeachanta/mooring-design-design-check-matrix` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/mooring-design-design-check-matrix`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/mooring-design-design-check-matrix/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/mooring-design-design-check-matrix

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# Design Check Matrix (+2)

## Design Check Matrix


| Check | Intact (DNV) | Damaged (DNV) | Method |
|-------|-------------|---------------|--------|
| Line tension SF | >= 1.67 (dynamic) | >= 1.25 (dynamic) | Max tension / MBL |
| Vessel offset | < 8% water depth | < 12% water depth | Max offset in design storm |
| Anchor capacity | SF >= 1.5 | SF >= 1.2 | Max anchor load / holding capacity |
| Line fatigue | Design life x3 | — | Miner's sum across sea states |
| Collision check | No line-line contact | — | Minimum separation > 2 * line diameter |

## Validation Code


```python
def validate_mooring_design(results, safety_factors):
    """Validate mooring analysis results against design criteria."""
    checks = []
    all_pass = True

    for result in results:
        # Tension safety factor
        sf = result.safety_factor
        sf_req = safety_factors.get(result.load_case, 1.67)

*See sub-skills for full details.*

## Key Standards Reference


| Standard | Application | Key Requirement |
|----------|-------------|-----------------|
| DNV-OS-E301 | Position mooring | Safety factors, fatigue, ALS |
| API RP 2SK | Station keeping | Environmental loads, analysis methods |
| ABS Rules | Mooring systems | Material specs, testing, survey |
| BV NR 493 | Mooring systems | Chain properties, proof testing |