---
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
  - split: valid
    path: data/valid-*
dataset_info:
  features:
  - name: unit_number
    dtype: int64
  - name: time_cycles
    dtype: int64
  - name: setting_1
    dtype: float64
  - name: setting_2
    dtype: float64
  - name: setting_3
    dtype: float64
  - name: s_1
    dtype: float64
  - name: s_2
    dtype: float64
  - name: s_3
    dtype: float64
  - name: s_4
    dtype: float64
  - name: s_5
    dtype: float64
  - name: s_6
    dtype: float64
  - name: s_7
    dtype: float64
  - name: s_8
    dtype: float64
  - name: s_9
    dtype: float64
  - name: s_10
    dtype: float64
  - name: s_11
    dtype: float64
  - name: s_12
    dtype: float64
  - name: s_13
    dtype: float64
  - name: s_14
    dtype: float64
  - name: s_15
    dtype: float64
  - name: s_16
    dtype: float64
  - name: s_17
    dtype: int64
  - name: s_18
    dtype: int64
  - name: s_19
    dtype: float64
  - name: s_20
    dtype: float64
  - name: s_21
    dtype: float64
  - name: RUL
    dtype: int64
  splits:
  - name: train
    num_bytes: 13229784
    num_examples: 61249
  - name: valid
    num_bytes: 8902224
    num_examples: 41214
  download_size: 8326547
  dataset_size: 22132008
---

# CMAPSS Jet Engine Simulated Data FD004 - NASA

This dataset contains simulated data from the CMAPSS (Commercial Modular Aero-Propulsion System Simulation) Jet Engine by NASA, FD004.

Train trjectories: 248
Test trajectories: 249
Conditions: SIX
Fault Modes: TWO (HPC Degradation, Fan Degradation)

## Sensor Descriptions

| Sensor ID | Description                                | Units       |
|-----------|--------------------------------------------|-------------|
| s_1       | Total temperature at fan inlet            | ◦R          |
| s_2       | Total temperature at LPC outlet           | ◦R          |
| s_3       | Total temperature at HPC outlet           | ◦R          |
| s_4       | Total temperature at LPT outlet           | ◦R          |
| s_5       | Pressure at fan inlet                     | psia        |
| s_6       | Total pressure in bypass-duct             | psia        |
| s_7       | Total pressure at HPC outlet              | psia        |
| s_8       | Physical fan speed                        | rpm         |
| s_9       | Physical core speed                       | rpm         |
| s_10      | Engine pressure ratio (P50/P2)            | -           |
| s_11      | Static pressure at HPC outlet             | psia        |
| s_12      | Ratio of fuel flow to Ps30                | pps/psia    |
| s_13      | Corrected fan speed                      | rpm         |
| s_14      | Corrected core speed                      | rpm         |
| s_15      | Bypass Ratio                              | -           |
| s_16      | Burner fuel-air ratio                     | -           |
| s_17      | Bleed Enthalpy                            | -           |
| s_18      | Demanded fan speed                        | rpm         |
| s_19      | Demanded corrected fan speed              | rpm         |
| s_20      | HPT coolant bleed                         | lbm/s       |
| s_21      | LPT coolant bleed                         | lbm/s       |

## Units Explanation

- ◦R: Rankine scale
- HPT: High Pressure Temperature
- LPT: Low Pressure Temperature
- HPC: High Pressure Chamber
- LPC: Low Pressure Chamber
- rpm: rotation per minute
- psia: pound per square inch
- pps: pulse per second
- lbm: pound mass

## Source

[CMAPSS Jet Engine Simulated Data](https://data.nasa.gov/Aerospace/CMAPSS-Jet-Engine-Simulated-Data/ff5v-kuh6/about_data)

## Citation

```bibtex
@article{Saxena2008DamagePM,
  title={Damage propagation modeling for aircraft engine run-to-failure simulation},
  author={Abhinav Saxena and Kai Goebel and Donald C. Simon and Neil H. W. Eklund},
  journal={2008 International Conference on Prognostics and Health Management},
  year={2008},
  pages={1-9},
  url={https://api.semanticscholar.org/CorpusID:206508104}
}