Development of microwave plasma method for measurement of wear particle parameters in lubricant oil samples from aircraft gas turbine engines

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 Street, Irkutsk

664074, Russia^2

关键词: Aircraft gas turbine engines;    Diagnostic features;    Element concentrations;    Elemental compositions;    High temperature;    Microwave plasma methods;    Microwave plasmatrons;    Submicrometer particle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012059/pdf
DOI  :  10.1088/1757-899X/560/1/012059

来源: IOP

【 摘 要 】

The paper describes the new microwave plasma method for gaining information about wear particles in oil samples from aircraft gas turbine engines (GTE). The method allows one to measure the element concentration in the form of wear particles (the size is more than 2 micrometers), element concentration in the form of metal-organic admixture and sub-micrometer particles (less than 2 micrometers), quantity and elemental composition of particles simultaneously and in real time. The microwave plasma analyser has electrodeless microwave plasmatron of original design, which allows for the proportional ratio between size of particles and the output signal for particles less than 60 micrometers in size. For this analyser, the ratio of quantity of wear particles hitting axial (high-temperature) plasma regions to overall particle quantity is no less than 0,95. Compressor pumped air is used as a plasma-forming medium. For analysis of the oil sample from the oil filter, new diagnostic features are suggested and their relation to the technical state of the engine is suggested.