Modeling of the Dynamic Rail Deflection using Elastic Wave Propagation | ||
| Journal of Applied and Computational Mechanics | ||
| مقاله 29، دوره 8، شماره 1، بهار 2022، صفحه 379-387 اصل مقاله (819.25 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22055/jacm.2021.38826.3290 | ||
| نویسندگان | ||
| Dmytro Kurhan1؛ Szabolcs Fischer* 2 | ||
| 1Department of Transport Infrastructure, Dnipro National University of Railway Transport named after Academician V. Lazaryan, Lazaryan st. 2, Dnipro, 49010, Ukraine | ||
| 2Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, Egyetem tér 1, Győr, 9026, Hungary | ||
| چکیده | ||
| There is a class of tasks that requires considering the dynamics not only for rolling stock but also for the response of the railway track. One of the directions of railway transport development, which encourages the transition to fundamentally new dynamic models of the railway track, is undoubtedly an increase in traffic speed. To solve such problems, the authors applied a model of the stressed-strained state of a railway track based on the dynamic problem of elasticity theory. The feature of this model is the calculation of dynamic stresses and deformations induced by the spread of elastic waves through the objects of the railway track. Based on the mathematical modeling of stress propagation in the under-rail basis, authors have shown the influence of various objects of a railway track on the formation of the outline of the front of the elastic wave and determined the main time intervals. Furthermore, the authors propose the following analytical method, which, in addition to the soil's physical and mechanical properties, considers the properties of the ballast as a layer that transmits pressure to the roadbed and takes an active part in the formation of the interaction space. | ||
| کلیدواژهها | ||
| Railway؛ ballast؛ stressed-strained state؛ dynamic stress؛ elastic wave | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 819 تعداد دریافت فایل اصل مقاله: 655 |
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