Разработана математическая модель и проведён анализ системы определение рационального количества технического контроля механизмов зерноуборочного комбайна.
Analysis of harvester’s operation time utilization – mathematical model. Economic effects of application of large-productivity machines is closely related to organization of the harvesting process. The time losses on additional, unconnected with production phases of that process are especially important. Under Polish conditions, such phase includes e.g. machine passages to a night parking place, as well as passages between particular tasks resulted from splitting of these tasks. The undertaken investigations aim at explaining of the effect of selected organization factors on operating productivity of multifunctional machines. The dependences that determine duration of particular phases have been formulated together with the balance indices of working shift time. The presented model enables to learn the working day structure and can be useful in the process of undertaking decisions to improve organization of large-productivity machines’ operation in Polish forests.