Methods and apparatus for monitoring gas turbine engine operation
AssigneeGeneral Electric Company
InventorsSridhar Adibhatla, Malcolm John Ashby
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Abstract
A model-based trending process for a gas turbine engine that generates, in real-time, engine trend parameters from engine sensor data and ambient flight condition data to assess engine condition is described. The engine includes a plurality of sensors that are responsive to engine operations. The trending process is implemented using a commercially available processor coupled to the engine to monitor the engine operations, and having the desired processing speed and capacity. Engine health parameters are estimated and adjusted in a model for component diagnostics and fault detection and isolation. The trend parameters generated are retained.
Claims6
A method for identifying trends in engine operation, the engine having a plurality of sensors responsive to engine operations, said method comprising the steps of:
- obtaining outputs from at least some of the sensors when the engine is operating;
- obtaining ambient flight condition data;
- and
- using an engine model to generate normalized engine trend parameters using the engine sensor data and ambient flight condition data, wherein engine component efficiencies and flow functions in the engine model are adjusted to account for engine faults, engine quality, and engine deterioration effects.
Dependencies are inferred from the claim text.