Open AccessThe Use of Performance-Monitoring to Prevent Compressor and Turbine Blade Failures
Author(s) -
Robert E. Dundas
Publication year - 1982
Publication title -
volume 2: coal, biomass and alternative fuels; combustion and fuels; oil and gas applications; cycle innovations
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/82-gt-66
Subject(s) - gas compressor , flutter , blade (archaeology) , vibration , turbine blade , axial compressor , turbine , gas turbines , condition monitoring , flow (mathematics) , computer science , structural engineering , aerodynamics , engineering , mechanical engineering , acoustics , aerospace engineering , physics , electrical engineering , mechanics
Most failures of compressor and turbine blades in gas turbines and axial-flow compressors are due to high-frequency fatigue (neglecting the rare instances of foreign-object ingestion). Fatigue is the result of vibration of the blade, either in resonance or in flutter. With mature machines, the user can avoid the possibility of most resonant-vibration failures by a program of performance monitoring. Flutter can be avoided only if there is reason (such as experience) to expect it in a certain operating regime. Examples of a simple performance-monitoring procedure are given.
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