AIRCRAFT TURBOJET ENGINE TEST METHOD Russian patent published in 2020 - IPC G01M15/14 

FIELD: machine building.

SUBSTANCE: invention relates to the field of aircraft engine industry, and in particular to methods of testing aircraft turbojet engines (TJE). In the method, the dependence of the value of the vibration level of the engine housings on the amount of oil pumping through the hydraulic damper by changing the oil pressure level PM in the discharge line is determined on several copies of engines in the entire operational area. For operation of engine in ranges of rotation frequencies with high level of vibrations of housings, increasing oil pressure in discharge pipeline, at that, value of oil pumping through the hydraulic damper increases and the level of vibrations of the housings is reduced.

EFFECT: method allows to reduce vibrations of engine housings in the entire working range, which leads to improvement of engine reliability and improvement of flight safety.

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