Comparative Analysis of Deep Learning and Decision Tree Approaches for Predicting Aircraft Engine Remaining Useful Life
19 lis 2024
O artykule
Kategoria artykułu: Research Article
Data publikacji: 19 lis 2024
Zakres stron: 183 - 200
DOI: https://doi.org/10.2478/fas-2023-0012
Słowa kluczowe
© 2023 Hassina Madjour et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Fig. 6.

Fig. 7.

Fig. 8.

Fig. 9.

Fig. 10.

The meanings of C-MAPSS data sources_
Description | Symbol | Units |
Total temperature at the fan inlet | T2 | °R |
Total temperature at the LPC outlet | T24 | °R |
Total temperature at the HPC outlet | T30 | °R |
Total temperature at the LPT outlet | T50 | °R |
Pressure at the fan inlet | P2 | Psia |
Total pressure in bypass-duct | P15 | Psia |
Total pressure at the HPC outlet | P30 | Psia |
Physical fan speed | Nf | rpm |
Physical core speed | Nc | rpm |
Engine pressure ratio (P50/P2) | Epr | |
Static pressure at the HPC outlet | Ps30 | Psia |
Ratio of fuel flow to Ps30 | Phi | PPS/psi |
Corrected fan speed | NRf | rpm |
Corrected core speed | NRc | Rpm |
Bypass ratio | BPR | |
Burner fuel-air ratio | farB | |
Bleed enthalpy | bleed | |
Demanded fan speed | Nf_dmd | Rpm |
Demanded corrected fan speed | PCNR_dmd | Rpm |
Coolant bleed (HPT) | W31HPT | 1bm/s |
Coolant bleed (LPT) | W32LPT | 1bm/s |
The total temperature at the HPT outlet | Parameters for calculating Health Index | |
Fan stall margin | SmFan | |
LPC stall margin | SmLPC | |
HPC stall margin | SmHPC |
Description of FD001 datasets_
Dataset | CMAPSS (FD001) |
Training engine | 100 |
Testing engine | 100 |
Working condition | 1 |
Fault modes | 2 |
The evaluation metrics_
Model | MSE | RMSE | R2 | |
Train set | CNN-1D | 459.5114 | 21.4362 | 0.7461 |
Test set | 735.5647 | 27.1213 | 0.5707 | |
Train set | DT | 567.8965 | 23.8305 | 0.6761 |
Test set | 837.1339 | 28.9332 | 0.5588 |
CNN-1D structure_
Layer (type) | Output Shape | Param # |
---|---|---|
conv1d (Conv1D) | (None, 23, 32) | 96 |
flatten (Flatten) | (None, 736) | θ |
dense (Dense) | (None, 64) | 47168 |
dense_1 (Dense) | (None, 1) | 65 |