Study on wheel wear mechanism of high-speed train in accelerating conditions

Sang, Hutang; Zeng, Jing; Qi, Yayun; Mu, Jian; Gui, Feng

doi:10.1016/j.wear.2022.204597

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…29 The wear within a single contact patch is calculated by the Jendel wear model, and the rail wear under different total passing weights is added up. 30 When the rail profile is updated once when the total passing weight reaches 1 Mt, and then the updated rail profile is brought into the dynamic model for simulation.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

Optimization of rail profile design for high-speed lines based on Gaussian function correction method

Dai

Gui

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

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As high-speed trains operate at a higher speed, the problem of rail wear is more serious. In this paper, a new Gaussian function correction (GFC) method is proposed to design the new rail profile, two parameters are introduced to control the removal area. Then a high-speed train vehicle dynamic model is established, the Kriging surrogate model (KSM) is used to reduce the number of simulations and the Non dominated sorting genetic algorithm-II (NSGA-II) algorithm is used to optimize the rail profile. Finally, the dynamic characteristics and wheel/rail wear evolution of the optimized profile are analyzed. The results show that the dynamic performance of the optimized rail profile has been improved. The maximum wear depth of the optimized rail profile is reduced by 15.63% when passing a total weight of 16 Mt. The wheel wear depth of S1002CN profile contact with CHN60OPT is reduced by 4.8%. The proposed GFC method can quickly generate a new rail profile and has good engineering significance for rail grinding. The GFC-KSM-NSGA- II method can be used to optimize the rail profiles for high-speed lines, and it can further guide the operation and maintenance.

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Section: Simulation Results and Discussionmentioning

confidence: 99%

Optimization of rail profile design for high-speed lines based on Gaussian function correction method

Dai

Gui

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…f represents friction coefficient; vs is the relative sliding speed; v1, v2 is the transition speed under the four levels of wear respectively. 14…”

Section: Simulation Modelmentioning

confidence: 99%

The effect of the installation angle of a high speed train yaw damper on wheel wear

Wang¹,

Wen

Sang

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

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The yaw damper is of great significance to the dynamic performance of high-speed trains. In this work, the influence of different installation angles of yaw dampers on dynamic responses and wheel wear is investigated. Firstly, the detailed dynamic model of a high-speed train is developed, which includes all kinds of nonlinear factors, such as wheel/rail contact relationship and nonlinear characteristics of various damping, and the influence of the installation angle of the yaw damper on dynamic performances of railway vehicles is investigated. Then the wheel wear prediction procedure is also proposed to obtain the effect of the installation angle of the yaw dampers on wheel wear evolution. The results show that the nonlinear critical speed of railway vehicles gradually increases with the increasing lateral distance of the yaw damper at the frame side. While critical velocity gradually decreases with increasing vertical installation distance of the yaw damper at the car body side. The maximum wheel wear depth will also gradually increase with increasing vertical distance at the car body side and increasing lateral distance of the yaw damper at the frame side when the vehicle runs on the tangent track. Moreover, it is also noticed that the wear depth of the wheel on both sides will gradually increase with the increasing vertical installation distance of the yaw damper at the car body side when the vehicle runs on a curved track. When the lateral installation angle of the yaw damper is less than 0°, the wheel wear rate remains constant and the wear sensitivity of the wheel to lateral installation angle is low, if the lateral installation angle of the yaw damper is greater than 0°, wheel wear rate increases significantly with increasing lateral installation angle of the yaw damper.

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“…Over time, there has been extensive research conducted on wheel-rail wear. Several researchers have conducted laboratory tests (small-scale) [2][3][4][5][6][7][8][9][10][11] and field experiments [12][13][14][15][16][17][18][19]. The former are usually preferred because of their cost-effectiveness and more accurate investigation of the material responses at the expense of the dynamic responses (lateral forces).…”

Section: Introductionmentioning

confidence: 99%

Examining Wear Mechanisms in Railway Wheel Steels: Experimental Insights and Predictive Mapping

Zani,

Mazzù,

Solazzi

et al. 2024

Lubricants

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Railway systems play a pivotal role in modern transportation networks, contributing to both efficiency and environmental sustainability. This study investigated the multifaceted aspects of wear phenomena in railway engineering, focusing on their significant implications for environmental costs and operational efficiency. Experimental trials were conducted using a high-performance bi-disc apparatus, evaluating a range of materials, contact pressures, and lubrication conditions. Shakedown maps were employed to assess ratcheting behaviour, while the wear rate was analysed as a function of the fatigue index (FI). The results reveal the intricate interplay of contact pressure, slip ratio, material properties, and lubrication in determining wear and ratcheting behaviour. Oxidative and mild wear mechanisms were identified, and wear debris composition and morphology were characterised. The outcomes from this research clarify the pivotal role that wear processes play within railway systems and the far-reaching environmental repercussions they entail. This exploration contributes to the ongoing optimisation of railway operations, offering valuable insights aimed at mitigating unavoidable pollution sources and strengthening sustainability efforts. By delving into the intricate dynamics of wear phenomena within wheel–rail material, this research paves the way for innovative solutions that not only enhance operational efficiency but also minimise the ecological footprint of railway transportation.

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Study on wheel wear mechanism of high-speed train in accelerating conditions

Cited by 10 publications

References 17 publications

Optimization of rail profile design for high-speed lines based on Gaussian function correction method

Optimization of rail profile design for high-speed lines based on Gaussian function correction method

The effect of the installation angle of a high speed train yaw damper on wheel wear

Examining Wear Mechanisms in Railway Wheel Steels: Experimental Insights and Predictive Mapping

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