ДН-02-19 «Фундаментальні основи створення адекватно-спрямованого напружено-деформованого стану мультифункціональних модулів вагоноконструкцій з можливостями перспективного широкого машинобудівного застосування»

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Browsing ДН-02-19 «Фундаментальні основи створення адекватно-спрямованого напружено-деформованого стану мультифункціональних модулів вагоноконструкцій з можливостями перспективного широкого машинобудівного застосування» by Subject "carrying structure"

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    A New Fastener To Ensure The Reliability Of A Passenger Car Body On A Train Ferry.
    (2020) Lovska, A.; Fomin, O.
    To ensure the strength of the passenger car bodies during transportation on train ferries, it is proposed to mount fastening elements of chain binders on the body bolster beams. The principle of such an element is based on the hydraulic damper operation. The mathematic modelling was conducted in order to determine the dynamic loading on a passenger car body during sea transportation. The study established that the improvements mentioned made it possible to reduce the dynamic loading on the body during sea transportation by 30% in a comparison with that of a typical fastening scheme. The strength of an improved passenger car body was calculated. The maximum equivalent stresses in the body structure accounted for about 120MPa, i.e., they did not exceed the admissible values. The conducted research may contribute to ensuring the required strength of passenger car bodies during train ferry transportation, thus leading to a higher operational efficiency of train ferry transportation within the international transportation.
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    Dynamic Load and Strength Determination of Carrying Structure of Wagons Transported by Ferries.
    (2020) Lovska, A.; Fomin, O.; Píštěk, V.; Kučera, P.
    A rapid development of economic relations between states has required an introduction of combined rail/ferry transportation. A feature of this type of transportation is the possibility of wagons traveling by sea on specially equipped ships—railway ferries. However, the transportation of wagons by sea is accompanied by damage to their structures. This follows from the fact that the wagons are not adapted to this type of transportation. In addition, the design of wagons does not consider the loads that can act on them during transportation by sea. In this connection, it is important to study the dynamic loading and strength of wagons during their transportation by sea. The current work investigated into dynamic load on the carrying structure of wagons transported by ferries using mathematical and computer modelling and defined accelerations on the wagon body. The adequacy of the models was checked with an F-test. The results of strength calculation for the carrying structure of a wagon made it possible to conclude that a typical fixation diagram does not provide the admissible range of strength parameters. The current work proposed an improved fixation diagram for cars on the deck with the viscous binder. The solution was substantiated by the results of the mathematical modelling of dynamic forces, strength, and stability of the carrying structure of a wagon on the deck. The results of the work will contribute to the creation of recommendations for the transportation of wagons on ferries. The research can contribute to safe transportation of wagons by ferries, and higher e ciency of the combined transportation