TY JOUR TI Methodology for predicting the remaining life of aviation generators based on cost-effective monitoring KW aircraft generator KW residual resource KW predictive diagnostics KW vibration monitoring KW insulation degradation KW maintenance by condition KW economic efficiency KW digital twin KW airworthiness KW machine learning JO Journal of Applied Research AU Andrianov, V.V. AU Sorokina, A.O. AU Sagitov, D.I. PY 2026 IS 0 PB ITBO University