Continuous performance analysis system and method

A method of conducting a continuous performance analysis for a gas turbine engine, comprising the steps of:

• collecting transient performance data for a first engine parameter and a second engine parameter using a first sensor and a second sensor, respectively;
• supplying the transient performance data to a processor;
• and
• applying transfer functions to the transient performance data for at least one of the first and second engine parameters, in the processor, to thereby generate phase compensated engine performance data representative of a steady state relationship between the first and second engine parameters;
• and
• for each phase compensated engine performance datum, calculating, in the processor, an estimate of the first engine parameter at a predetermined value of the second engine parameter using the phase compensated engine performance datum and a previously stored performance characteristic curve representative of the steady state relationship between the first and second engine parameters.

A gas turbine engine continuous performance analysis system, comprising:

• a first sensor operable to sense a first engine parameter and supply first transient performance data representative of the first engine parameter;
• a second sensor operable to sense a second engine parameter and supply second transient performance data representative of the second engine parameter;
• a processor coupled to receive the first and second transient performance data from the first and second sensors, respectively, the processor operable, upon receipt thereof, to:
• apply transfer functions to at least one of the first and second transient performance data to thereby generate phase compensated engine performance data representative of a steady state relationship between the first and second engine parameters;
• and
• for each phase compensated engine performance datum, calculating an estimate of the first engine parameter at a predetermined value of the second engine parameter using the phase compensated engine performance datum and a previously stored performance characteristic curve representative of the steady state relationship between the first and second engine parameters.