Mathematical modeling of small soil channel laboratory stand drive and evaluation of its energy state

Abstract

The article presents data on improving the design of the Small Soil Channel research laboratory stand. The possibilities of experimental works on study of kinematic parameters and structural parameters, spatial dynamometering of working elements of tillage and sowing machines are described. The article considers the method for assessing the energy state of the laboratory stand small soil channel and studying the power distribution in its moving mechanisms. Based on the parameters obtained as a result of solving the equations of motion and energy state, using the full differential of the Hamelton function, the power distribution in the mechanisms under the action of external forces and the total mechanical energy of the stand are determined. The traction resistance of stand working body was determined using the Goryachkin formula. Based on the developed kinematic scheme, a mathematical model has been developed that imitates the movement of the belt transmission mechanism of the stand. Based on the developed mathematical model, calculation experiments were carried out using the Runge-Kutt numerical method, the results made it possible to find the motion parameters of the belt transmission mechanism of the stand. The results obtained when solving the mathematical model of the belt transmission mechanism of the stand made it possible to determine the parameters of movement of the stand engine and the drum. This article presents the results of determining the stiffness and elasticity coefficients of the belt, the moment of resistance of the drum, the driving moment of the driving pulley, angular speed, angular rooting, the moment of inertia of the driving and driven pulleys by compiling a mathematical model of the Laboratory Stand Small Soil Channel that imitates the working process of tillage and sowing machines.