Choice of Tractor Aggregates for a Definite Amount of Work.

The article considers an issue for choosing tractor aggregates necessary to perform a definite amount of work by means of an economic- mathematical simulation method. The analysis of the data obtained in the process of simulation allowed establishing the conclusion that there is an economically efficient working width and, consequently, an optimal number of aggregates for a definite amount and conditions of work. This method allows a motivated choice of the necessary number of aggregates to perform a definite amount work taking into account the economic expediency. The computer software MS Excel Solver was used to calculate the mathematical model solving it as an optimisation task of non-linear programming. As an example, the choice of a tractor aggregate was discussed for the cultivation of soil for sowing cereals from the range of machines TopDown (the firm VÄDERSTAD). [ABSTRACT FROM AUTHOR]