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首页> 外文期刊>Advances in Mechanical Engineering >A Robust Finite Element Analysis of the Rail-Wheel Rolling Contact
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A Robust Finite Element Analysis of the Rail-Wheel Rolling Contact

机译:轮毂滚动接触的鲁棒有限元分析

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摘要

Appraisal of contact stresses, surface cracks, and plastic deformations in rails and wheels has always been an important issue in mechanical and railway engineering because of two main reasons. In the first place, these inappropriate events lead to the reduction of service life of the railway track. Besides, studying railway systems requires both time-consuming analysis methods and expensive experimental works. In this paper, a railway system containing wheel, rail, axle, and pads is modeled and analyzed. Using elastic-plastic materials, mapped meshing, and the rolling motion of the wheel contingent upon the up-to-date international railway systems results in high accuracy in the solutions of this problem. ANSYS software is utilized with the purpose of simulating the system. The contribution of this study is on the basic way of managing Rail-Wheel interaction problems from a finite element method point of view. So, stress distribution, elastic and plastic strains as well as nodal forces are considered, simultaneously. The results obtained from the simulation have suitable agreement with the real life experiences. Another feature of this paper is that it demonstrates essential steps for more realistic 3D solutions to the aforementioned problems.
机译:由于两个主要原因,对铁路和车轮中的接触应力,表面裂纹和塑性变形的评估一直是机械和铁路工程中的重要问题。首先,这些不适当的事件导致铁路轨道的使用寿命缩短。此外,研究铁路系统需要费时的分析方法和昂贵的实验工作。在本文中,对包含轮,轨,轴和垫的铁路系统进行了建模和分析。使用弹塑性材料,映射网格和车轮的滚动运动取决于最新的国际铁路系统,从而在解决该问题方面具有很高的准确性。利用ANSYS软件来模拟系统。这项研究的贡献是从有限元方法的角度来研究钢轮相互作用问题的基本方法。因此,应同时考虑应力分布,弹性应变和塑性应变以及节点力。从仿真中获得的结果与现实生活中的经验相吻合。本文的另一个特点是,它演示了针对上述问题的更逼真的3D解决方案的基本步骤。

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