AIRCRAFT GAS TURBINE ENGINE TEST METHOD Russian patent published in 2019 - IPC G01M15/14 F02C9/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft engine building, to aircraft engines of gas turbine type, namely to testing methods during their creation, experimental finishing of experimental and industrial specimens characteristics and operation. In the known test method of aircraft gas turbine engine, including selection of type of tests, designing and multi-criterion optimization of consumer properties of engine, determining a list of measured and calculated parameters and operating conditions of the engine, determining boundary conditions for achieving consumer properties, forming a test bench, preparing the engine with the required means for measuring parameters in accordance with the type of tests, measurement of parameters at different modes of operation, data collection, processing, visualization, docking with design data and comparison with designed consumer properties, compilation of protocols of conformity of properties and/or generation of correcting actions, according to the proposal, previously formed library of registered data files obtained during all previous tests of this engine and other engines of this series, formed by type of tests and achieved consumer properties, characteristic time intervals are determined, in which, at different modes in given conditions, measured and calculated parameters of values of minimum and maximum boundary characteristics, determining range of parameter oscillations, as well as coefficients of influence of engine operating modes on boundary characteristics are correlated with each other, then, using the software, performing the automated comparison of obtained and contained in the library similar results and compiling a protocol of conformity of properties and/or generating corrective actions, wherein the calculated parameters used are data from the library of registered files.

EFFECT: use of the invention enables to reduce time for development and creation of engines, as well as reduce irrational costs by eliminating multiple repeatability of tests, helps to increase informativity of conducted tests, provides optimization of engine performance and wide use of software products of mathematical modeling for optimization of engine parameters at all stages of their life cycle.

1 cl, 1 dwg, 4 tbl