Browsing by Author "Stanovska, Iraida"

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    Determining the Vertical Load on a Container with a Floor Made of Sandwich Panels Transported by a Flat Wagon
    (TECHNOLOGY CENTER PC, Kharkiv, 2024) Lovska, Alyona O.; Stanovska, Iraida; Kyryllova, Valeriia; Okorokov, Andrii M.; Vernihora, Roman V.
    ENG: The object of this study is the processes of perception and redistribution of vertical loads in the structure of a container with a floor made of sandwich panels under operational modes. To ensure the strength of the container, as well as the safety of the cargo transported in it, it is proposed to design a floor based on sandwich panels. It is assumed that each of these panels is made of two metal sheets in a layer between which an energy-absorbing material is placed. Given the presence of energy-absorbing material in the structure of the sandwich panel, the vertical dynamic loads acting on the cargo container during its transportation will be reduced. To substantiate the proposed solution, mathematical modeling of the vertical load on the container during its transportation by a flat wagon was carried out. It is found that the accelerations acting on the container of the improved design are 5.7 % lower than those acting on the container of standard design. The calculation of the strength of the container was carried out under operational schemes of its loads. It has been established that the strength of the container is ensured. A special feature of the results is that the reduction of the load on the container is achieved not by strengthening its structure but by introducing flexible connections into it. The field of practical application of the results is railroad transport. The conditions for the practical use of the findings are the use of energy-absorbing material in the structure of sandwich panels that form the floor of the container. The results of the research will contribute to improving the strength of containers under operating conditions, the safety of the cargo transported in them, as well as increasing the efficiency of the functioning of container transportation.
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    Revealing the Effect of Structural Components Made of Sandwich Panels on Loading the Container Transported by Railroad
    (РС ТЕСHNOLOGY СЕNTЕR, Kharkiv, 2023) Vatulia, Glib; Lovska, Alyona O.; Myamlin, Sergiy S.; Stanovska, Iraida; Holofieieva, Maryna; Horobets, Volodymyr L.; Nerubatskyi, Volodymyr; Krasnokutskyi, Yevhen
    ENG: The object of this study is the processes of emergence, perception, and redistribution of loads in the supporting structure of a 1CC size container with end walls made of sandwich panels. To reduce the longitudinal load of the container under operational modes, the introduction of sandwich panels into its design is proposed. This solution is implemented on the example of its end walls as the most loaded component of the body in operation. The thickness of the sandwich panel sheet was determined, provided that the strength in operation is ensured. Mathematical modeling of dynamic load of a container with end walls made of sandwich panels placed on a platform car during shunting co-impact was carried out. It was established that taking into account the proposed improvement makes it possible to reduce the dynamic loads that the container perceives by 10 % compared to the typical structure. The results were confirmed by computer simulation of the dynamic load of the container. The models formed within the framework of the study were verified according to the F-criterion. The results of calculations for the strength of the container showed that the stresses in its structure are 15 % lower than those in the typical one. A feature of the findings is that the proposed improvement of the container helps improve its strength in operation by reducing the loads acting on it. The scope of practical use of the results is the engineering industry, namely, railroad transport. At the same time, the conditions for the practical application of the research results are the introduction of energy-absorbing material as a component of the sandwich panel. This study will contribute to devising recommendations for designing modern structures of vehicles of a modular type and for improving the efficiency of the transport industry.