Gas-path Component Fault Diagnosis for Gas Turbine Engine: A Review

Gas turbine engines have been the key power machine for energy conversion & utilization in the 21st century efficiently and cleanly. To improve equipment reliability and availability, prolong service life and reduce O&M costs, gas path component diagnosis is an effective technique for detecting evolving deterioration. Although many diagnostic methods based on steady state or quasi-steady state have been obtained, but no complete scientific system of gas-path diagnosis has been formed yet. Aiming at the above problems, a research route of gas-path component fault diagnosis for gas turbine engine is proposed. The proposed research route provides a new solution for diagnosis for complex nonlinear thermodynamic systems.