| Abstrakt: |
In our study, we addressed the operational productivity of road machinery — the main criterion linking the life cycle of the road and that of the road machine. Methods. Most road machinery operation studies address such issues as maintaining the technically sound state: reducing the failure rate, optimizing the time and adjusting the frequency of maintenance and repair, etc. However, this is not sufficient for high-quality performance since it depends on many other random factors. An integrated approach is required that, based on the volume of work, would allow us to determine, analyze, and forecast machinery performance. Results. By integrating the values of the planned and actual volume of work, we obtained the values of the planned and actual operational productivity — the necessary and sufficient condition for performing the required volume of work. The locations or days of the month when the required volume of work was not performed in the period under review were determined by the actual utilization factor. Discussion. From a technical point of view, the situation when the values of the planned and actual operational productivity coincide is ideal since in this case the resource balance is ensured to the fullest extent. Possible cases of critical decreases in the operational productivity were analyzed mathematically. Conclusions. The proposed methodology makes it possible to analyze road machinery performance at the operation stage and evaluate road machines during their design, production, and disposal. In this case, it is enough to use in-house resources and mathematical apparatus for scientific analysis. [ABSTRACT FROM AUTHOR] |
