车轮爬轨稳定系数的工程计算方法

D. Kurhan, O. Hubar, M. O. Havrilov
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引用次数: 1

摘要

目的。轨道和车辆相互作用的一个指标,如果不遵守,就会导致违反交通安全,即脱轨,这是确保车轮法兰不爬升到轨头上的稳定性的条件。这项工作的目的是为实际工程计算阻力系数对轮缘爬上轨道头部的方法。所描述的方法将有来自计算公式和参考材料的完整信息,以消除吸引额外来源和特殊软件的需要。方法。实现这一目的的主要目的是将水平力的计算提高到工程水平。由于轨道与车辆相互作用过程的复杂性,需要考虑大量影响结果的因素,通常采用复杂的动力模型来确定水平力。一种可能的解决方案在于假设对于特定类型的机车车辆,水平力可以通过与不平衡加速度值的线性依赖来计算。为此,采用了一种计算水平力的分析技术。发现。本文确定了几种类型的调车机车和考虑载重水平的货车在不平衡加速度作用下水平力计算的缺失系数。创意。在工作中,进一步发展了轨道与车辆在水平面上相互作用分析的科学实用方法。实用价值。所提出的逐步计算稳定系数的方法使得在工程水平上进行实际分析,以确保车轮法兰爬上轨道头部的安全裕度成为可能,这在调查机车车辆脱轨的原因以及与弯曲轨道段运动有关的许多其他任务时是必要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
METHODOLOGY FOR ENGINEERING CALCULATION OF STABILITY COEFFICIENT AGAINST WHEEL CLIMBING ON THE RAIL
Purpose. One of the indicators of the track and rolling stock interaction, non-observance of which can result in a traffic safety violation, namely to derailment, is a condition for ensuring stability against the wheel flange climbing onto the rail head. The aim of this work is to create a methodology for practical engineering calculation of the resistance coefficient against the wheel flange climbing onto the rail head. The described methodology will have complete information both from calculation formulas and from reference materials, to eliminate the need to attract additional sources and special software. Methodology. The main objective of the implementation of this purpose is to bring the calculation of horizontal forces to the engineering level. Due to the complexity of the interaction process between the track and the rolling stock and the need to take into account a large number of factors that have an effect on the result, as a rule, complex dynamic models are used to determine horizontal forces. A possible solution lies in the assumption that for a specific type of rolling stock, the horizontal force can be calculated by linear dependence on the value of the unbalanced acceleration. For this, an analytical technique for calculating horizontal forces was used. Findings. The authors determined the missing coefficients for calculating the horizontal force depending on the unbalanced acceleration for some types of shunting locomotives and for a freight car taking into account its load level. Originality. In the work, scientific and practical approaches for the interaction analysis of the track and rolling stock in the horizontal plane acquired further development. Practical value. The proposed step-by-step methodology for calculating the stability coefficient makes it possible at the engineering level to carry out a practical analysis of ensuring the safety margin against the wheel flange climbing onto the rail head, which is necessary when investigating the causes of rolling stock derailment and for a number of other tasks related to movement in curved track sections.
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