FIELD: engines.
SUBSTANCE: invention can be used in process of turbo machines components and parts finishing, in particular aircraft engines, as well as examination of rotor-stator interaction and vibration amplification amplitudes events caused by disarrangement of impellers. Method is characterised in that impeller vanes are loaded by pulsating jets in axial direction. At that, number of jets corresponds to number of blades of stator wheel. Amplitude of the impeller blades oscillations should be measured and number of jets used for loading impeller blades should be changed at least once, and amplitude of impeller blades oscillations should be measured again. Measured amplitudes of impeller blades oscillations should be compared and required number of wheel blades should be judged based on comparison result. At that, jets pulsation frequency should be selected equal to impeller blades oscillations on selected mode of turbomachine operating range.
EFFECT: technical result consists of reduction in impeller blades resonant stresses level.
3 cl, 3 dwg
