Influence of wagon body flexural deformation on the indicators of interaction with the railroad track

IF 2.2 3区工程技术 Q2 MECHANICS Archive of Applied Mechanics Pub Date : 2024-06-19 DOI:10.1007/s00419-024-02633-2

Leontii Muradian, Anzhelika Shvets, Angela Shvets

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Abstract

The article is devoted to the study of the influence of flexural deformation of the body of a freight wagon on the indicators of the interaction of rail fleet with rails. The considered indicators depend both on the design of the rail fleet, its condition and speed, and on the design and condition of the railroad track. A theoretical study was carried out using a model of spatial vibrations of a freight wagon as part of a homogeneous train. When carrying out calculations, the wagon body was considered as an absolutely rigid body and as a discrete multi-mass system with elastic connections between the masses. When choosing a design scheme, it was assumed that the wagon body is a deformable body and, when bending, has finite rigidity in the vertical and horizontal planes. As a result of the research, the dependences of the dynamic indicators of a freight wagon on the flexural deformation of the body and the speed of movement were obtained. Based on theoretical calculations, the influence of the deformability of the body on the interaction of rail fleet with the railroad track on a tangent level track and curved section with irregularities was assessed.

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车体弯曲变形对与铁轨相互作用指标的影响

本文专门研究货车车体弯曲变形对铁路车辆与铁轨相互作用指标的影响。所考虑的指标既取决于铁路车辆的设计、状态和速度，也取决于铁路轨道的设计和状态。理论研究使用了同质列车中货车空间振动的模型。在进行计算时，车体被视为一个绝对刚体和一个离散的多质量系统，质量之间具有弹性连接。在选择设计方案时，假定车体是一个可变形体，在弯曲时，在垂直和水平平面上具有有限刚度。研究结果表明，货车的动态指标与车体的弯曲变形和运动速度有关。在理论计算的基础上，评估了车体的变形能力对在切线水平轨道和不规则曲线段上轨道车队与铁轨相互作用的影响。

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来源期刊

Archive of Applied Mechanics 物理-力学

CiteScore

4.40

自引率

10.70%

发文量

234

审稿时长

4-8 weeks

期刊介绍： Archive of Applied Mechanics serves as a platform to communicate original research of scholarly value in all branches of theoretical and applied mechanics, i.e., in solid and fluid mechanics, dynamics and vibrations. It focuses on continuum mechanics in general, structural mechanics, biomechanics, micro- and nano-mechanics as well as hydrodynamics. In particular, the following topics are emphasised: thermodynamics of materials, material modeling, multi-physics, mechanical properties of materials, homogenisation, phase transitions, fracture and damage mechanics, vibration, wave propagation experimental mechanics as well as machine learning techniques in the context of applied mechanics.