# Orcaflex Installation Analysis

> Create and analyze OrcaFlex models for offshore installation sequences including subsea structure lowering, pipeline installation, and crane operations. Generate models at multiple water depths and orientations for installation feasibility studies.

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

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# Orcaflex Installation Analysis

## When to Use

- Subsea structure installation analysis
- Pipeline/umbilical installation sequences
- Heavy lift crane operations
- Installation depth variation studies
- Lowering phase analysis
- Splash zone analysis
- Installation feasibility assessment
- Crane wire and sling configuration

## Prerequisites

- OrcaFlex license (for simulation)
- Python environment with `digitalmodel` package installed
- Reference model files (.yml format recommended)
- Reference elevation configuration

## Python API

### Generate Installation Depth Models

```python
from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

# Initialize
installer = OrcInstallation()

# Configuration for depth variation
cfg = {
    "structure": {
        "BaseFile": "reference.yml",

*See sub-skills for full details.*
### Simple Depth Model Generation

```python
from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

installer = OrcInstallation()

# Simpler configuration
cfg = {
    "reference_elevation_file": "models/reference.yml",
    "structure": "Subsea_Template",
    "masterlink": "Lifting_Point",

*See sub-skills for full details.*
### With Structure Orientation

```python
from digitalmodel.orcaflex.orcaflex_installation import OrcInstallation

installer = OrcInstallation()

# This generates:
# 1. Base model at each depth
# 2. Orientation variant (rotation about Z)
cfg = {
    "structure": {

*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-static-debug](../orcaflex-static-debug/SKILL.md) - Debug convergence issues
- [orcaflex-line-wizard](../orcaflex-line-wizard/SKILL.md) - Configure line properties

## References

- OrcaFlex Installation Analysis: Orcina Documentation
- DNV-RP-H103: Modelling and Analysis of Marine Operations
- API RP 2A: Planning, Designing and Constructing Fixed Offshore Platforms
- Source: `src/digitalmodel/modules/orcaflex/orcaflex_installation.py`

## Sub-Skills

- [Basic Installation Depth Study (+1)](basic-installation-depth-study/SKILL.md)
- [Model Preparation (+2)](model-preparation/SKILL.md)

## Sub-Skills

- [Version Metadata](version-metadata/SKILL.md)
- [[1.0.0] - 2026-01-17](100-2026-01-17/SKILL.md)
- [Installation Sequence Workflow](installation-sequence-workflow/SKILL.md)
- [Output File Structure](output-file-structure/SKILL.md)
- [Reference Elevation File (+2)](reference-elevation-file/SKILL.md)
- [Integration with Universal Runner](integration-with-universal-runner/SKILL.md)
- [1. Splash Zone Analysis (+2)](1-splash-zone-analysis/SKILL.md)
- [Post-Processing Installation Results](post-processing-installation-results/SKILL.md)
- [Common Errors and Fixes (+3)](common-errors-and-fixes/SKILL.md)