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The impact of wheel polygonisation to the railway corrugation
Vehicle System Dynamics ( IF 3.5 ) Pub Date : 2021-04-22 , DOI: 10.1080/00423114.2021.1916047
Xianxian Yin 1 , Xiukun Wei 1 , Hong Xiao 2 , Jin Shi 2
Affiliation  

The railway companies have been beset by rail corrugation for many years, especially those subway companies. Therefore, the formation mechanism of rail corrugation has been paid much attention in the last decades. It is believed that corrugation occurs when the vehicle runs over the track and excites its resonant vibration. Wheel polygonal wear (WPW), as a typical wheel tread defect, inevitably worsens the wheel-rail contact state and excites track vibration. However, little attention has been paid to the impact of the WPW to rail corrugation. In this paper, the impact of WPW to rail corrugation is considered. Firstly, the wheel-rail interaction with WPW is analysed, where the wheel-rail interactive force is treated as a moving harmonic load. Then, the impact of WPW to rail corrugation is investigated with the help of theoretical analysis and simulation experiments. The specific track with integrated ballast bed is considered as an example. The results show that the initial rail wear is largely due to WPW. And when the track resonance is excited by the moving harmonic excitation induced by WPW, the initial wear evolves into rail corrugation. In addition, WPW intensifies the development of existing corrugation and leads to some new corrugation.



中文翻译:

车轮多边形化对铁路波纹的影响

铁路公司多年来一直受到轨道瓦楞的困扰,尤其是那些地铁公司。因此,近几十年来,钢轨波纹的形成机理备受关注。人们相信,当车辆在轨道上行驶并激发其共振时,就会发生波纹。车轮多边形磨损(WPW)作为一种典型的车轮胎面缺陷,不可避免地会恶化轮轨接触状态并激发轨道振动。然而,WPW 对钢轨波纹的影响却很少受到关注。在本文中,考虑了 WPW 对钢轨波纹的影响。首先,分析了轮轨与WPW的相互作用,将轮轨相互作用力视为运动谐波载荷。然后,借助理论分析和仿真实验研究了WPW对钢轨波纹的影响。以集成道碴床的具体轨道为例。结果表明,最初的钢轨磨损主要是由于 WPW。并且当由WPW引起的运动谐波激励激发轨道共振时,初始磨损演变为钢轨波纹。此外,WPW加强了现有瓦楞的发展,并导致了一些新的瓦楞。

更新日期:2021-04-22
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