Slidenko V. “Development of scientific bases of stabilization of shock-wave processes of hydropulse systems of mining machines”

The aim of the work is to further develop the scientific basis for the stabilization of shock-wave processes of hydro-pulse systems of mining machines with the establishment of regularities of the influence of shock-wave processes of hydro-pulse systems on mining machine design elements depending on the parameters of elastic-dissipative links with heterogeneous lyophobic systems, and based on the development of methods and models - substantiation of the parameters of mining machines to increase their reliability and efficiency. The object of the study is the shock-wave processes of interaction between the elements of the mining machine, the impulse executive body and the rock massif. Research methods are based on the well-known laws of mechanics, thermodynamics, molecular physics, the theory of dynamic systems, mathematical modeling with the use of numerical finite-difference, differential-difference methods. Experimental studies of field samples of mining machines with a hydropulse executive body are based on the application of mathematical statistics and the theory of experiment planning. The study of thermo-molecular dynamics with the control of the course of experiments was carried out using a programmable logic controller and using a specially created laboratory stand. The scientific significance of the work is: in the development of the scientific basis for the stabilization of the shock wave processes of the hydropulse systems of mining machines with the determination of the dependence of shock-wave processes on the energy and power parameters of the recuperative hydropulse executive body, the feed mechanism, the transition elements of the connection with nonlinear hardness characteristics and the thermo-molecular dissipative elements on the basis of heterogeneous lyophobic systems, with the justification of technical solutions for the stable functioning of the mining machines. The practical significance of the work is to develop and implement in the production of engineering techniques and mathematical support of the software complex for the implementation of engineering tasks on the computer calculation of dynamic processes with the definition of optimal parameters of elements of constructions of mining machines, as well as in the development of programs and conducting experimental studies under the production conditions of PA "Attek", ICS ”Renfors”, SPA "Azgard", PJSC "Kyivmetrobud" with the justification of a new scientific direction - study of the stabilization of dynamic p otsesiv mining machines using new working bodies - lyophobic heterogeneous systems with high thermodynamic koefitsyentom compact and powerful hysteretic energy dissipation. This allowed to create on the basis of inventions new and improve existing elements of the construction of mining machines and methods for their calculation with the expected economic effect in the amount of more than 1 million 300 thousand UAH, which is significant for the mining industry.