Objective: reduce energy consumption of drainage machines by optimizing repair and replacement schedules. Methods: a mathematical model was developed based on the analysis of energy consumption and working time utilization using mathematical analysis, set theory, and graphical visualization. Results: the model determines optimal maintenance or replacement schedules for machines, minimizing energy consumption. Conclusions: the efficiency of drainage production is increased by maintaining the fleet of machines in good technical condition, which implies reduced energy consumption while maximizing working time utilization
Abdrazakov et al. (2026) studied this question.