---
title: PHI Arc Engine PHM
emoji: 🚀
colorFrom: red
colorTo: red
sdk: docker
app_port: 8501
tags:
  - streamlit
pinned: false
short_description: Interactive PHM digital twin for TPE331 gas turbine engines.
license: apache-2.0
---

# PHI-Arc Engine PHM Digital Twin

**Multi-engine prognostics and health monitoring system for MRO technicians.**

🔗 **Live Demo:** [https://huggingface.co/spaces/SM-Bello/PHI-Arc-Engine-PHM]

---

## Supported Engines

| Engine | Type | Icon |
|--------|------|------|
| TPE331-25 | Turboprop | 🛩️ |
| CFM-LEAP Class | Turbofan | ✈️ |
| J85-GE Class | Turbojet | 🚀 |
| RJ43 Class | Ramjet | ⚡ |
| X-51A Class | Scramjet | 🔥 |
| RS-25 Class | Rocket | 🌌 |

---

## Features

- **Physics-informed baseline** — ISA atmosphere + thermodynamic cycle matching per flight condition
- **5-fault signature library** per engine type with 3 severity levels (Advisory / Warning / Critical)
- **Cosine-similarity fault classification** against known ATA-linked degradation fingerprints
- **Certification-linked maintenance actions** — FAA TCDS, EASA CS-E, FAR Part 33, MIL-STD, NASA-STD
- **Report generation** — PDF, DOCX, and CSV export for offline MRO documentation
- **Trend analysis** — Upload CSV flight-cycle logs, detect fault onset, view degradation curves
- **Interactive charts** — Plotly heatmaps, Matplotlib steady-state comparisons, trend plots
- **Responsive design** — Mobile and desktop optimized via custom CSS

---

## Architecture

```
PHI-Arc Engine PHM/
├── app.py                      # Main Streamlit application
├── Dockerfile                  # HF Spaces Docker container
├── requirements.txt            # Python dependencies
├── packages.txt                # System dependencies (apt)
├── assets/
│   └── style.css               # Responsive UI styling
├── engines/
│   ├── base_engine.py          # Abstract engine interface
│   ├── turboprop.py            # TPE331-25 (FAA TCDS E2WE)
│   ├── turbofan.py             # CFM-LEAP class
│   ├── turbojet.py             # J85-GE class
│   ├── ramjet.py               # RJ43 class
│   ├── scramjet.py             # X-51A class
│   └── rocket.py               # RS-25 class
└── reports/
    ├── pdf_generator.py        # MRO diagnostic PDF reports
    ├── docx_generator.py       # Editable Word reports
    └── csv_exporter.py         # Telemetry CSV export
```

---

## Quick Start (Local)

```bash
# Clone the repo
git clone https://huggingface.co/spaces/SM-Bello/phi-arc-phm
cd phi-arc-phm

# Install dependencies
pip install -r requirements.txt

# Run locally
streamlit run app.py
```

---

## Deployment (Hugging Face Spaces)

This Space uses the **Docker SDK**. The `Dockerfile` is included — no additional configuration needed.

1. Create a new Space at [huggingface.co/spaces](https://huggingface.co/spaces)
2. Select **Docker** as the SDK
3. Upload all files from this repository
4. The Space will auto-build and deploy on push

---

## Usage for MRO Technicians

1. **Select Engine Type** — Choose from the 6 supported propulsion systems
2. **Input Flight Conditions** — Altitude, Mach, power setting, fuel type
3. **Input Measured Telemetry** — EGT, Fuel Flow, N1/N2, CDP/P3 from ECU/FDR logs
4. **Run Diagnosis** — System computes physics-healthy baseline and matches fault signatures
5. **Review Results** — See degradation trends, fault rankings, ATA-linked actions, and certification requirements
6. **Download Report** — Export PDF/DOCX/CSV for maintenance records

---

## Certification Standards Referenced

- **FAA TCDS E2WE Rev.8** — Honeywell TPE331
- **EASA CS-E** — Certification Specifications for Engines
- **FAR Part 33** — Airworthiness Standards: Aircraft Engines
- **SAE AIR 1168/4** — Gas Turbine Engine Performance Deterioration
- **MIL-E-5007D** — Military Turbojet Engine Specification
- **MIL-STD-810** — Environmental Engineering Considerations
- **NASA-STD-5012** — Structural Requirements and Factors of Safety
- **AIAA S-080 / S-081** — Ramjet/Scramjet & Liquid Rocket Engine Standards

---

## License

Apache-2.0

---

<div align="center">
  <strong>PHI-Arc Systems</strong> — Physics-Informed Archetype for Engine Health Monitoring<br>
  <em>Built for MRO professionals worldwide.</em>
</div>