ИСПОЛЬЗОВАНИЕ СИГНАЛОВ С ДАГЧИКОВ ЧАСГОГЫ ВРАЩЕНИЯ ВАЛОВ ГГД В ДИАГНОСГИКЕ ТЕХНИЧЕСКОГО СОСТОЯНИЯ ЕГО РЕДУКТОРА

Abstract

In the article shown that analyzing the signals from the "standard" sensors of rotation speed of gas-turbine en¬gines without the installation of additional converters we can resolve several issues of diagnostics of technical condi¬tion of the reducers. It is established that the component of vibration spectrum, generated by the wear of the gear-teeth of the differential reducer, which causing the resonance oscillations of the turbocharger blades, creating torsional vi¬bration on the appropriate frequency. The analysis of the current rotational speed parameters of the output link by reducers (the shaft of the rear screw) allowed to get several diagnostic parameters values of the wear by the teeth-gear of the reducers. It is established that the connection of the detecteddiagnostic parameters from the wear value is satis¬factorily approximated the corresponding linear dependencies.