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首页> 外文期刊>American Journal of Traffic and Transportation Engineering >A New Method for Solving the Problem of Determining the Characteristics of Spatial Stiffness and Elasticity of the Rail Threads and Stresses and Strains in Rails
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A New Method for Solving the Problem of Determining the Characteristics of Spatial Stiffness and Elasticity of the Rail Threads and Stresses and Strains in Rails

机译：解决轨道轨道和应力的空间刚度和弹性特征的问题的一种新方法

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摘要

The reference data given in technical literature on the characteristics of spatial stiffness and elasticity of rail threads in the conditions of joint action on the rails of vertical and horizontal lateral forces and torsion are very different and in some cases contradictory. This situation is due to the lack of an accurate analytical solution to this problem and the provision for reference materials only experimental research data, which are clearly different, not only for different railway structures, but also significantly differ in different conditions of acting external forces (P, H, M_(tor)). The purpose of this article is to present a new method of analytical solution of the problem of determining the spatial characteristics of stiffness and elasticity of rail threads and also computation the stresses and strains that occur in them, under conditions of complex joint action on rail threads of vertical and horizontal dynamic forces (P_(dyn), H_(dyn)) simultaneously with the external torque moment M_(tor) arising from off-center forces applied to the rails from wheel loads. The complex method of solving the problem was used in the paper. It includes the theoretical part and the results of the experiment. Using the experimental researches characteristics of horizontal lateral stiffness of the rail threads of the head and sole at different constructions of the modern rail fastenings was measured. The second task of determination of the real values of the characteristics of spatial elasticity and stiffness modulus of the rail thread under joint vertical and lateral horizontal bends of the rail in conjunction with its simultaneous torsion was solved by the theoretical methods. As the results of author's researches were obtained new values of the characteristics of spatial stiffness and elasticity modulus of rail threads under joint vertical and lateral horizontal bends of the rail in conjunction with its simultaneous torsion. These characteristics were obtained for the modern railway track constrictions with rails (R65, R50, UIC60) on concrete and wooden sleepers and with rail fastenings unlined or lined types (KB, KPP-5, KPP-1, D0). And also these characteristics were obtained in the functional dependence on the ratio of vertical and horizontal lateral forces P/H.
机译：技术文献中给出的参考数据在垂直和水平横向力和扭转轨道的联合动作条件下的空间刚度和轨道弹性的弹性方面的特征是非常不同，在某些情况下矛盾。这种情况是由于缺乏对该问题的准确分析解决方案以及参考资料的规定，只有实验研究数据，这些数据显然是不同的，不仅用于不同的铁路结构，而且在作用外力的不同条件下也显着不同（ p，h，m_（tor））。本文的目的是提出一种新的分析解决方法的解析解决轨道刚度和弹性弹性的空间特征以及计算它们中发生的应力和菌株，在轨道线上复杂的关节作用的条件下垂直和水平动态力（P_（DYN），H_（DYN））与外部扭矩力矩M_（TOR）同时施用于车轮载荷的轨道。纸张使用了解决问题的复杂方法。它包括理论部分和实验结果。使用实验研究，测量了头部和鞋底的轨道横向刚度的特性，并在现代轨道紧固件的不同结构处。通过理论方法解决了轨道接头垂直和横向水平弯曲下的轨道螺纹的空间弹性和刚度模量的实际值的第二任务。随着作者研究的结果是在轨道的关节垂直和横向水平弯曲下结合其同时扭转，获得了轨道下的空间刚度和轨道弹性模量的特征的新值。在混凝土和木制枕木上与轨道（R65，R50，UIC60）的现代铁路轨道收缩以及轨道紧固件（KB，KPP-5，KPP-1，D0）的现代铁路轨道收缩而获得这些特性。并且还可以在垂直和水平横向力P / h的比例的功能依赖性中获得这些特征。

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