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Information × Registration Number 0223U001438, 0118U003283 , R & D reports Title The increase of motion safety, improvement of high-speed trains dynamics and interaction with track popup.stage_title Head Mokrii Tetiana F., Кандидат технічних наук Registration Date 28-01-2023 Organization Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine popup.description2  The analysis of the current state of the problem and the main directions for improving motion safety, improving the dynamics and interaction with the track of high-speed trains has been performed, mathematical model has been developed for substantiated studies of random oscillations of the "high-speed passenger train – track" system and the dynamic interaction of its elements, calculations have been performed to determine rational parameters of running parts of an articulated passenger train cars, a research has been conducted to reduce the dynamic interaction of the "wheel-rail" pair at different track parameters, a new wear-resistant ITM-73EP wheel tread profile has been developed, the use of which, according to forecast data, will ensure the compatibility of the "wheel-rail" pair with the automated transition of cars from one track to another in conditions of joint operation of trains on domestic and European railways. Recommendations have been developed for the selection of rational parameters of the rolling stock running parts and the track to improve the dynamics, interaction with the track, and the motion safety of passenger trains in regular modes and in case of emergency collisions. The developed recommendations can be used (after experimental verification) in the creation of promising high-speed passenger cars of a new generation, as well as in the improvement of existing running parts, which will increase the speed and the level of train motion safety, reduce the negative influence on the railway track, and accelerate the integration of Ukraine into European railways transportation. The scientific and technical significance of the work lies in the fact that at the stage of development of new designs of rail rolling stock units, as well as wheel and rail profiles, it is important to predict the influence of changes in design parameters on the stability of movement and dynamic characteristics of cars, the safety of their movement. Product Description popup.authors Kovtun Olena Ladyhin Ihor Lapina Liudmyla Maliy Viktor Malysheva Iryna Mokrii Tetiana F. Pasichnyk Serhii popup.nrat_date 2023-01-28 Close