Criteria for evaluation of efficiency of using machines in agricultural complex
DOI:
https://doi.org/10.31548/machenergy2020.02.151Keywords:
criterion, grain harvesting machine, harvesting and transport complex, grain culture, efficiencyAbstract
Comprehensive assessment of the use of grain harvesters is the result of simultaneous and coordinated research of a set of private qualitative and quantitative indicators that reflect the main aspects of operation of grain harvesters in given economic conditions, and generalized conclusions on the results of comparing actual values of private indicators with basic in previous periods in different conditions, desirable, etc.). The need for a comprehensive assessment of the use of grain harvesters arose based on the requirements of comparing the results of a single grain harvester or several machines combined into a harvesting unit or harvesting complex, not only on individual indicators, but also on a generalized criterion.
The main task of research into the efficiency of technical systems, including grain harvesters, is to choose a strategy for using machines that provides the best results in these conditions. To date, when choosing a strategy for a given operation, the criteria of minimum cost, minimum labor costs or maximum useful effect, such as productivity, are most often used.
Analysis of scientific research of many domestic and foreign scientists has shown that the easiest to determine, but reliable are the indicators that take into account the functioning of the machine over time. Such indicators include, first of all, the most common and fairly universal technical and economic indicator of machine performance, as well as the utilization rate of change time, indicators of machine reliability, etc. These indicators are applicable to assess the use of the entire fleet of grain harvesters. Widely used indicators have not only advantages in their use, but also disadvantages.
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