GAS TURBINE ENGINE METHOD FOR GAS TURBINE ENGINE TESTING (VERSIONS) METHOD FOR PRODUCTION OF GAS TURBINE ENGINE BATCH (VERSIONS) METHOD FOR GAS TURBINE ENGINE OPERATION Russian patent published in 2013 - IPC G01M15/14 

FIELD: engines and pumps.

SUBSTANCE: group of inventions presents the methods for gas turbine engine (GTE) testing. The test is done with measurement of engine operation parameters at different modes within programmed range of flight modes for certain engine series and bringing the obtained parameters to standard atmospheric conditions regarding the changing of working body properties and geometrical characteristics of air-gas channel at atmospheric conditions measuring. For this purpose there preliminary is created and corrected the engine mathematical model by the results of tests of sufficient engine number, which helps to define engine parameters at standard atmospheric conditions and different temperatures within accepted program. Parameters' actual values are referred to the standard ones, correction coefficients to measured parameters are calculated. The calculation of the latter is done by multiplying the measured values by the deviation of actual value from the norm regarding the correction coefficients. The developed test versions can be used at finishing, pilot and industrial, serial production and at the stage of aircraft engine operation, including after haul and providing more correct bringing of engine parameters obtained by experiment regarding the accepted engine control programs to parameters corresponding to the standard atmospheric conditions and increasing the representation of test results for complete range of flight cycles of engine operation.

EFFECT: increase of reliability results of defining the most important engine operation parameters in wide range of temperature climatic conditions at reduction of labour intensity and energy consumption and maintaining engine service life at testing.

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