Факультет транспорту та інженерії
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Item type:Наукова стаття, Using of the Trucks with Electrical Drive on the Farm Enterprises(2024) Dembitskyi, Valerii; Sakhno, Volodymyr; Murovanyi, Igor; Maiak, MykolaA problem of using of the electric drive trucks on the farm enterprises was investigated in present research work. According to the results of the litera-ture sources analysis there was found a great interest of scientists and users concerning the usage of the commercial electric vehicles in the agriculture. There was made a mathematical modeling of the power consumptions by trucks of gross weight 4000, 8000, 10000 and 12000 kg taking into account their different operating conditions, a movement by an asphalt concrete, road-metal, ground pavement. There was determined that a vehicle move-ment on a pavement with a high value of rolling resistance coefficient leads to an abrupt increasing of the power consumption, up to 2…2,5 times. There was made a comparison of the values of received power consumptions with the results that were received by another scientists using another research methods. A deviation of received results of the specific power consumptions consists within 5…20 %, that is accessible and says about their sufficient convergence. A perspective of further investigations should be directed to a possibility of quick replenishment of the power supply, a determination of rational correlation between different power sources, and to a receiving of detailed characteristics of the vehicles operating conditions that are used in the agriculture.Item type:Наукова стаття, Management of Sustainable Development of Car Service Enterprises(2023) Dembitskyi, Valerii; Murovanyi, Іgor; Maiak, Mykola; Pavlova, IrynaThe effective activity of road transport enterprises depends on the chosen strategy of enterprise management. The urgent role is the effectiveness of the use of a risk-oriented approach to the management and planning of the enterprise. The article, using the method of hierarchy analysis and probabilistic method, identifies and determines the contribution of risks. The factors that form the risks of road transport enterprises’ activities are defined for these types of enterprises. It has been found that the application of the hierarchy analysis method is a more time-consuming process and provides a deeper analysis of each risk. The probabilistic method is easier to apply, but it requires a high qualification of experts who will assess the risks. The results of surveys conducted by road transport enterprises indicate the application of elements of a risk-oriented approach. The availability of risk information makes it possible to implement appropriate precautions not only within an individual enterprise, but also on a more global scale.