International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The article highlights two approaches to solving the problem of the distribution of the incentive fund, one of which is based on the calculation of the cost of one point; the second one is based on elementary incentive payment in the system with weight indices. The latter approach makes it possible to single out a small number of clusters of successful personalities. Comparison of the considered approaches at the stage of their implementation allows us to draw the conclusion about the different aspirations of teachers in the performance assessment systems. A mathematical solution is proposed for the distribution of the incentive fund in the framework of the second approach. The proposed method allows dividing fund resources in an extremely short period of time.

The paper examines the dynamic behavior of an electric bicycle depending on the total mass of the bicycle, the cyclist and the battery on the one hand and on the other – on the place of the battery. The experiment demonstrates that in its movement at a constant speed the electric bicycle behaves as inverted pendulum.

This article offers the new procedure of a general-purpose tractor mass and power calculation which is oriented on performance of certain kinds technological operations (sowing, plowing). Optimality criterions are total energy expenses considering yield energy which was lost because of wrong chosen tractor parameters. By multiple parameter optimization of a tractor parameters and the unit it is found out that there are optimum values of a tractor weight and power during the sowing and plowing, which do not coincide on size and remain stable at considerable change of environmental factors (properties of soil, parameters of field). Weight and power of a multi-purpose tractor providing the minimum total energy expenses during the complex of operations were indicated.