FIELD: engines and pumps.
SUBSTANCE: way of efficiency upgrading of cracks in working aero gas-turbine engine disk development diagnostic is impressed by the integral vibration signal and spectral vibration components simultaneous analysis. The vibration signal is registered on the engine case due to the impulse energy release in case of the stepped crack development when engine moves at a full speed rpm within working cycle. The spectral vibration components register together with integral vibration signal.
EFFECT: invention improves efficiency of the disks diagnostic method; it is an engine case impulse oscillation in case when cracks develop in disk oriented diagnostic.
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