Scientific Journal of KubSAU

The modeling method of heat extension in a detail in the combined process of plasma spraying coating with electromechanical treating and cooling by water jet is worked out. It is shown, that water cooling essentially decreases detail surface temperature and forms more strong coating thank to reduction of inner strains in the coating

On the basis of one of the discrete methods (Smoothed Particles Hydrodynamics Method) a mathematical model of the combined hardening of surface details was developed. The model allows optimizing the processes of plasma spraying, me-chanical, electro-mechanical processing

In the article we consider severe conditions of operation of forest cars caused by the difficult land relief and service dirt roads which are badly equipped, as a rule, abounding with roughnesses, obstacles in the form of large superficial roots, stones and boulders, frequent turning movements, steep ascents and descents, considerable cross biases, hollows and boggy sites which lead to increase in consumption of fuel by 1,5-2,0 times and to cutting-down of their life cycle. Ways of increase in their efficiency by equipment by the recuperative mechanisms providing reuse in working process unproductively disseminated to the environment energy, and also promoting increase in reliability and simplification of a design of such cars are analyzed. On the basis of the analysis of the results received when studying a condition of a question, the authors have offered a design of a forest car with a recuperative hydraulic actuator in which gears of recovery are the arrow, a handle and the basic and rotary device of the hydraulic manipulator, reversible hydraulic motors of wheels and a suspender of the forest car. The scheme is submitted and work of a recuperative hydraulic actuator is described. The technique of an assessment of efficiency of the offered design of the forest car with system of recovery of energy is given. The cyclogram of working process of the forest car with the offered hydraulic actuator is constructed

On the base of the smoothed particles hydrodynamics method, the mathematical model of plasma coating process on details surfaces in the mode of electrical parameters modulation is performed. This model al-lowed optimizing the plasma coating process parame-ters

Some possible ways to control the quality of plasma coating are presented. An advanced method of plas-ma coating perfection is observed. It is characterized by combination of plasma spraying with simultaneous electromechanical treating of coating. The analysis of combined process factors is given. Besides, there are computer modeling results of process factors effects on coating quality parameters

In the article we have shown the results of theoretical optimization of quality coatings produced by plasma spraying with simultaneous electro-mechanical processing. The optimal process parameters