The paper analyzes prospects of application of elastic reactive linkage in tractor power train for the purpose of decreasing of its dynamic loading under transient modes (turning, acceleration, deceleration). The three-dimensional dynamic model of tractor power train with elastic clutch and without one is developed and investigated.
The method is determined and the models are obtained, that allows to choose an optimal pitch of sole of two-stage B-shaped knives.
The paper discusses the process of heat transfer in the adiabatic lamellar packings for evaporative air coolers in cabs. Issue of heat transfer enhancement is also studied taking into account the specifics of the subject of application. Formulas for determination of parametric indices of the innovative packing are obtained.
Results of research of new working organ for soil cultivation with proposed experimental installation are given. New working organ in the form of concave disk with welded-on blades ensures the decrease of tractive resistance by 8-15% compared to serial ones.
New working organ for potato sorting is proposed. The device has adequate efficiency of grading and permits to develop a compact and light sorting device for farm.
Anticorrosion properties of carboxylated antifreeze are investigated. It is found that long-time contact between coolant liquid and steel changes neither surface condition of specimens nor mass of them. It is demonstrated that steel surface under electrochemical corrosion conditions can in some cases take on the property of anticorrosion barrier.
Operating model of two-cylinder engine with closed crankcase ventilation system is presented. Differential equation system describing processes proceeding in cylinder, inlet and outlet lines is obtained. Program for calculation of processes of the engine with bypass of exhaust gases into inlet line is developed.
Current state of agricultural machinery industry in the Republic of Armenia and its development prospects within the Customs Union are considered.
The paper considers an issue of normalization of managers’ number in the field of engineering support and supply and sales activity. Method of statistical normalization allows to determine the number of professionals for every organization department on the basis of statistical analysis.
Benefits of application of biofuels produced on the basis of plant oils in diesel engines are shown. Results of calculation research of fuel injection process in Д-245.12С diesel engine operating on diesel fuel and biofuels mixtures are given.
Results of mathematical treatment of statistic data on work of agricultural organizations in Russia are given. Linear relationship between number of statistic tractors and agricultural machines is shown. Equivalent ratio between tractor fleet reduction and reduction of arable land area and number of jobs is revealed.
The article is dedicated to the centenary of Michail Aleksandrovich Sharov, the famous developer of domestic crawled tractors, the chief designer of the Volgograd tractor plant, the laureate of the USSR State Prize.
Criteria of static and dynamic stability of two-axle wheeled vehicles with the same roll-over axes (automobile and low-clearance tractor) are considered. Improved universal formulas for calculation of these machines resistance to roll-over are obtained.