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Browsing Статті КЛ by Author "Černiauskaitė, L."
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Item Mathematical Simulation of Spatial Oscillations of the "Underframe-Track" System Interaction(Kaunas University of Technology, Kaunas, Lithuania, 2018) Klimenko, Irina V.; Černiauskaitė, L.; Neduzha, Larysa O.; Ochkasov, Oleksandr B.ENG: The article presents mathematical simulation of spatial oscillations of the "underframe-track" system interaction. It describes a design scheme of the freight-passenger electric locomotive, taking into account details of construction and the mathematical model of its spatial oscillations. The connections imposed on the system, the forces arising in them, as well as the mutual displacements of all the bodies in the system are considered. Differential equations of system oscillations are composed on the basis of Lagrange's equations of the second kind taking into account details of construction of the electric locomotive. The paper presents some results of calculations for the cases of an electric locomotive movement on the straight sections of the track, curves of small and mean radius.Item Usage of Intelligent Technologies in Choosing the Strategy of Technical Maintenance of Locomotives(Vilnius College of Technologies and Design, Vilnius, Lithuania, 2017) Ochkasov, Oleksandr B.; Shvets, Oleg M.; Černiauskaitė, L.ENG: The paper substantiates the need to improve the existing strategy in organization of maintenance and repair of locomotives. Many railway companies continue to use the preventive maintenance system for railway engines repairs. This system of maintenance requires considerable funds for repair work, and the amount of repair work not always corresponds to the actual technical condition of the locomotive. The usage of this approach in the organization of maintenance can be considered as morally obsolete. Especially this approach is not effective for locomotives equipped with on-board diagnostic systems. The analysis of maintenance and repair system for locomotives used on Ukrainian and Lithuanian railways is carried out. Alternative approaches to the organization of the locomotive maintenance system and experience of their use in the world are considered. Approaches and methods for the development of an intelligent strategy of maintenance and repairs are proposed. Requirements to the structure and contents of the baseline data for the development of intelligent systems are formulated. A technology for the collection and processing the information of the diagnostic systems for the intellectual strategies development of technical content is proposed. The transition to more advanced strategy of hauling equipment maintenance will lead to a reduction in the cost of repairs while achieving a high level of reliability.