TY JOUR TI DETERMINATION OF THE SPECTRAL CHARACTERISTICS OF OPERATIONAL DAMAGE TO GEARBOXES ON THE STAND KW VIBRATION SPECTRA KW OPERATIONAL DAMAGE TO GEARS KW CLASSIFICATION TABLES OF GEARBOX FAILURES KW EXPRESS VIBRATION DIAGNOSIS JO Voronezh Scientific-Technical Bulletin AU Leliovsky, K.Y. PY 2025 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov