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Издательство:
Дата издания
17.10.2025На каком языке издана
ISSN
22780149Область исследования
Тип исследования
Аннотация (краткое описание)
This article aims to assess the dynamic loads acting on railway track structures during the operation of open wagons in a degraded technical condition, particularly under increased axle load conditions. The study investigates the interaction characteristics between the open wagon and the superstructure of the railway track, focusing on how wear of components and assemblies in the bogie system influences the magnitude and nature of load transmission. A combined experimental and computational analysis of open wagon dynamics was conducted, considering both loaded and empty operating states, as well as varying levels of technical degradation. The findings allow for the identification of critical parameters that influence operational safety and track degradation. Additionally, the study offers recommendations concerning the permissible range of stability margin coefficients and the operating conditions for worn rolling stock under horizontal and vertical loading scenarios. CopyrightDOI
10.18178/ijmerr.14.5.571-581Тип публикаций
Практическое значение
Studies have shown that the worn-out technical condition of open wagons, combined with increased axle load, leads to a significant increase in dynamic loads on the elements of the upper track structure. An increase in the axle load while maintaining or worsening the technical condition of the rolling stock increases the impact on the rails, sleepers, and ballast layer, accelerating their wear and reducing the service life of the track. In accordance with the objectives of the article, the following results were obtained: 1. An analysis of the current state of the fleet of open wagons operated with increased axle loads showed a high proportion of rolling stock with signs of operational wear on bogie components, spring suspension, and running gear. It was established that such technical deviations significantly affect the increase in dynamic impacts on the track during movement, especially on curved sections and uneven profiles. 2. The results of experimental measurements using a measuring car demonstrated that when the axle load is increased to 27 tf, worn-out semi-cars generate dynamic loads on the track that exceed the corresponding indicators for cars in good condition by 15–25%. The increase in vertical and transverse loads is particularly pronounced, creating conditions for accelerated wear of rails, sleepers, and ballast prisms. 3. A comparative analysis of the data obtained with the normative values showed that at a certain level of technical wear and an axle load exceeding 25 tf, dynamic impacts can exceed the permissible norms regulated by the technical conditions for the upper structure of the track. Critical conditions are those in which high wear of the suspension system is combined with movement on sections with track defects.Квартиль
Источник квартиля
SCImago (Scopus)Impact Factor
3.4Количество цитирований
1Данный документ располагается в коллекциях
Международные публикации ученых SU
Scopus
Файлы документа
IJMERR-V14N5-571 (1).pdf