Technical state evaluation of oil-lubricated parts and units of aircraft gas turbine engines using microwave plasma method

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Drokov, V.G.^1 ; Drokov, V.V.^1 ; Ivanov, N.A.^2 ; Myrishenko, V.V.^1 ; Skudaev, Y.D.^1 ; Hodunaev, A.Y.^1

Irkutsk State University, 20 Gagarin Blvd., Irkutsk

664003, Russia^1

Irkutsk National Research Technical University, 83 Lermontov Str., Irkutsk

664074, Russia^2

关键词: Aircraft gas turbine engines;    Diagnostic features;    Distribution law;    Engine operating time;    Microwave plasma methods;    Parameter levels;    Technical state;    Wear particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012058/pdf
DOI  :  10.1088/1757-899X/560/1/012058

来源: IOP

【 摘 要 】

The method for technical state evaluation of oil-lubricated units of aircraft gas turbine engines using measurement of wear particle parameters and the microwave plasma method is suggested. Diagnostic features accounting for quantity and composition of wear particles in oil samples and oil filter wash samples have been discovered. Parameter levels for non-defective engines are evaluated. Reference statistical models for non-defective engines, which take into account engine type and engine operating time, are calculated. Distribution laws of parameter values are evaluated, and value normalization functions were found. Actual validity with accuracy up to a unit has been estimated to be 85%, which is confirmed by factory disassembly study of engines, removed from operation by the results of evaluation.