Trending of Performance Parameters for Aircraft Engine Condition Monitoring
نویسندگان
چکیده
This paper investigates the trending of performance parameters for aircraft engine condition monitoring. Vibration data is often an indicator of sudden changes in the state of an aircraft engine. Performance parameters, which include pressure and temperature data, usually track slower changes in engine condition. The aim of this paper is to determine precursors to engine events through performance parameter trending. Corrected performance parameters, from regions of steady state operation of an engine, are monitored over a fixed turbine pressure ratio band. The use of corrected parameters from a fixed engine condition provides a basis for the comparison of data from flight to flight. Performance data from a development engine in which an event is known to have occurred is used for analysis. We compare results with similar analyses performed on the same data set in the vibration domain. Tests are carried out using data from three-shaft engines during their development program.
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