An articulated covered wagon design was developed. The wagon feature is that the body-bearing elements are made of circular pipes. This technical solution made it possible to reduce the tare weight of the wagon while ensuring the strength conditions. Mathematical simulation of the dynamic loading of the developed articulated covered wagon design was carried out under the main operating conditions. In the calculations of the observed quantities, an application of symmetry with regard to the longitudinal axis of the wagon was used. The accelerations, as the components of the dynamic load acting on the wagon, were determined. The dynamic loading computer simulation results of the developed wagon design are also presented. The strength analysis of the articulated covered wagon supporting structure made it possible to conclude that the strength indexes were within the allowed limits. The wagon bearing structure was analyzed for fatigue strength. The weld strength analysis results of the most loaded part of the wagon-bearing structure are presented. The results obtained for the desired quantities revealed their symmetrical distribution in the wagon structure. This research will contribute to improving the efficiency of railway transport operation.

中文翻译：

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圆管设计铰接有盖货车的动力与强度分析

开发了铰接式有盖货车设计。货车的特点是车身承载元件由圆形管制成。该技术方案在保证强度条件的同时，降低了货车的皮重。在主要操作条件下对开发的铰接式有盖货车设计的动态载荷进行了数学模拟。在计算观测量时，使用了关于货车纵轴的对称性应用。加速度，作为作用在货车上的动态载荷的分量，被确定。还介绍了开发的货车设计的动态载荷计算机模拟结果。铰接式有盖货车支撑结构的强度分析可以得出强度指标在允许范围内的结论。分析了货车轴承结构的疲劳强度。给出了货车承载结构的最大负载部分的焊接强度分析结果。获得的所需数量的结果揭示了它们在货车结构中的对称分布。该研究将有助于提高铁路运输运营效率。