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Information × Registration Number 0225U000937, (0123U100600) , R & D reports Title Research methods improvement of high-speed prospective rail vehicle oscillations and their interaction with the track popup.stage_title Розробка математичного забезпечення для обґрунтованих досліджень випадкових коливань системи «екіпаж – колія» та динамічної взаємодії її елементів при різних параметрах контактної пари «колесо – рейка». Head Mokrii Tetiana F., Кандидат технічних наук Registration Date 21-01-2025 Organization Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine popup.description1 Improvement of the theoretical research methods of high-speed prospective rail vehicle oscillations, their motion safety and processes of dynamic interaction with the track at various parameters of the contact pair "wheel - rail", development based on the results of recommendations on the selection of rational wheel parameters to ensure normative indicators of dynamics and interaction with the railway track for trains intended for operation on domestic and European railways, as well as rational parameters of the rail track at the section of their automated transition from one track to another. popup.description2 Objects of research – railway rolling stock, contact pair "wheel – rail". The purpose of the work at the second stage of the scientific research work is the development of mathematical tools for conducting substantiated studies of random oscillations of the "carriage–track" system and the dynamic interaction of its components under various parameters of the "wheel – rail" contact pair. Research methods – mathematical and computer modeling techniques for analyzing the oscillations of complex mechanical systems. During the implementation of the second stage of the research, the following results were obtained: – a calculation scheme and a mathematical model were developed for perspective studies of the spatial oscillations of the "freight train – track" system; – an assessment was conducted of the dynamic performance indicators of a railway car moving on tracks with various parameters; – an analysis was performed of the contact interaction between railway car wheels and the track during transitions to tracks with differing parameters under joint operations on Ukrainian and European railways. The results obtained at this stage will be used in future studies to determine optimal wheel parameters that ensure compliance with standard indicators of dynamics and interaction with the track for railway trains operating on domestic and European railways. Product Description popup.authors Kovtun Olena M. Malyi Viktor V. Mokrii Tetiana F. Pasichnyk Serhii S. popup.nrat_date 2025-01-21 Close