Robust In-Flight Sensor Fault Diagnostics for Aircraft Engine Based on Sliding Mode Observers
Abstract
:1. Introduction
2. Aircraft Engine Description
3. Sensor Fault Diagnostic
- The first Markov parameter (the product of and ) must have full column rank;
- Any invariant zeroes (if there exists) of are Hurwitz.
4. Degraded Performance Tracking and Post-Flight Model Update
5. Simulation and Performance Evaluation
6. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Notation | Description |
---|---|
H | Height |
Ma | Mach number |
NL | Low pressure rotor speed |
NH | High pressure rotor speed |
h | Health parameter vector |
h1 | LPC efficiency |
h2 | HPC efficiency |
h3 | HPT efficiency |
h4 | LPT efficiency |
h5 | LPC flow capacity |
h6 | HPC flow capacity |
h7 | HPT flow capacity |
h8 | LPT flow capacity |
Wf | Fuel flow rate |
P25 | HPC inlet pressure |
T25 | HPC inlet temperature |
P3 | Combustor inlet pressure |
T3 | Combustor inlet temperature |
T495 | Exhaust gas temperature |
Measurement | Nominal Value | Fault Magnitude |
---|---|---|
3484 RPM | −2% | |
15,044 RPM | −3% | |
298 K | −5% | |
64,990 Pa | −1.5% | |
747 K | −8% | |
1,242,145 Pa | −2% | |
936 K | −2.5% |
Non-Degrading Case | Degrading Case | |
---|---|---|
0.197 | 0.208 | |
0.294 | 0.298 | |
0.515 | 0.516 | |
0.143 | 0.146 | |
0.895 | 0.895 | |
0.219 | 0.236 | |
0.241 | 0.252 |
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Chang, X.; Huang, J.; Lu, F. Robust In-Flight Sensor Fault Diagnostics for Aircraft Engine Based on Sliding Mode Observers. Sensors 2017, 17, 835. https://doi.org/10.3390/s17040835
Chang X, Huang J, Lu F. Robust In-Flight Sensor Fault Diagnostics for Aircraft Engine Based on Sliding Mode Observers. Sensors. 2017; 17(4):835. https://doi.org/10.3390/s17040835
Chicago/Turabian StyleChang, Xiaodong, Jinquan Huang, and Feng Lu. 2017. "Robust In-Flight Sensor Fault Diagnostics for Aircraft Engine Based on Sliding Mode Observers" Sensors 17, no. 4: 835. https://doi.org/10.3390/s17040835
APA StyleChang, X., Huang, J., & Lu, F. (2017). Robust In-Flight Sensor Fault Diagnostics for Aircraft Engine Based on Sliding Mode Observers. Sensors, 17(4), 835. https://doi.org/10.3390/s17040835