Research Article
Integrating Feature Engineering with Deep Learning to Conduct Diagnostic and Predictive Analytics for Turbofan Engines
Table 3
Definitions of input features and RUL.
| | Features | Definitions | Unit |
| | Sensor_2 | Total temperature at high-pressure compressor (HPC) outlet | °R | | Sensor_3 | Total temperature at low-pressure turbine (LPT) outlet | °R | | Sensor_4 | Pressure at fan inlet | psia | | Sensor_6 | Total pressure at HPC outlet | psia | | Sensor_7 | Physical fan speed | rpm | | Sensor_8 | Physical core speed | rpm | | Sensor_9 | Engine pressure ratio (P50/P2) | — | | Sensor_11 | Ratio of fuel flow to Ps30 | pps/psi | | Sensor_12 | Corrected fan speed | rpm | | Sensor_13 | Corrected core speed | rpm | | Sensor_14 | Bypass ratio | — | | Sensor_15 | Burner fuel-air ratio | — | | Sensor_17 | Total temperature at fan inlet | °R | | Sensor_20 | High-pressure turbine (HPT) coolant bleed | lbm/s | | Sensor_21 | LPT coolant bleed | lbm/s | | Response | Remaining useful life (RUL) | Cycle |
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