Метод вибрационной диагностики аэродинамических и аэроупругих колебаний в компрессоре газотурбинного двигателя термоэлектронной эмиссии

Abstract

This research contains analysis of external factors that affects the beginning of aerodynamic and aeroelastic oscillations in compressor of gas turbine engine. Has been developed the flutter and rotating stall diagnostics method. This method is based on frequency response characteristics. Type of oscillations is determined when signal magnitude reaches corresponding threshold (predicted taken into account operating conditions of the engine).