EQUIPMENT FOR DIAGNOSTICS AND ESTIMATION OF REMAINING RESOURCES OF FRICTION PAIRS DURING THE OPERATION OF GAS-TURBINE ENGINES
S.Yu. Borovik1, Yu.N. Sekisov1, A.V. Blinov2, M.V. Luchsheva2, F.I. Mukhutdinov2
1Samara Federal Research Scientific Center, Russian Academy of Sceinces, Samara, Russia
2Joint Stock Company "UEC-Aviadvigatel", Perm, Russia
Keywords: gas turbine engine, bearing unit, single-coil eddy-current sensor, state monitoring, debris control, simulation, operating time, residual life assessment
Abstract
The paper suggests an approach to the construction of equipment for diagnostics of dangerous states caused by destruction of bearing elements in propulsion systems like gas-turbine engines. The approach is based on continuous monitoring of external factors affecting the bearing assembly and of the presence of metal particles in the engine lubrication system, which are carried out using original single-coil eddy-current sensors, modeling of the wear of bearings, and expert verification of the remaining resources in changing operating conditions. This makes it possible to determine the residual life of the bearing assembly and predict the time until its intensive destruction. Thus, the possibility of taking measures to prevent the development of emergency situations is provided.
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