A Fault Diagnosis Analysis of Afterburner Failure of Aeroengine Based on Fault Tree

The afterburner is essential for military aeroengines, providing rapid thrust increase during critical maneuvers. However, complex failure mechanisms pose challenges for fault diagnosis and troubleshooting. This study investigates a specific aviation engine’s afterburner engagement principle and typ...

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Bibliographic Details
Published inProcesses Vol. 11; no. 7; p. 2086
Main Authors He, Ai, Zeng, Qinghua, Zhang, You, Xie, Pengfu, Li, Jianping, Gao, Ming
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.07.2023
Subjects
Aeronautics
Aerospace engines
Afterburners
Aircraft
Airplane engines
Algorithms
Analysis
Aviation
Computational fluid dynamics
Failure
Failure mechanisms
Fault diagnosis
Fault tree analysis
Fluid dynamics
Measurement techniques
Sensors
Signal processing
Trouble shooting
Troubleshooting
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ISSN2227-9717
2227-9717
DOI10.3390/pr11072086

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Summary:The afterburner is essential for military aeroengines, providing rapid thrust increase during critical maneuvers. However, complex failure mechanisms pose challenges for fault diagnosis and troubleshooting. This study investigates a specific aviation engine’s afterburner engagement principle and typical faults, using fault tree analysis and computational fluid dynamics (CFD). We propose a hybrid diagnostic fault architecture combining traditional observer fault diagnosis with fault trees for online fault diagnosis of critical faults. Simulations and test bench verification confirm the feasibility and effectiveness of our approach, offering valuable insights and guidance for addressing afterburner engagement issues in aviation engines.
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ISSN:2227-9717
2227-9717
DOI:10.3390/pr11072086