Effect of the worn status of wheel/rail profiles on wheel wear over curved tracks

Kou, Jie; Jimin, Zhang; Zhou, Hechao; Wang, Chengping; Sun, Lijun

doi:10.1007/s12206-021-0207-y

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…In addition, the probability that the diameter of the wheel exceeds the limit also needs to be calculated. (7) The probability of the wheel diameter exceeding the limit When carrying out correction maintenance, if Sd b > Sd H , the wheel diameter reduction by reprofiling is about 1.5~2 mm to eliminate the tread surface damage. Otherwise, the reduction in the wheel diameter is (Sd H − Sd b ) × B, where B is the proportional coefficient, representing the cost of the wheel diameter to restore 1 mm of flange thickness.…”

Section: Maintenance Probability Modelmentioning

confidence: 99%

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Joint Maintenance Strategy Optimization for Railway Bogie Wheelset

et al. 2022

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A wheelset is one of the most severely worn components of railway bogies. Its health condition has a significant impact on the safety and comfort of railway trains. Moreover, wheelset maintenance costs account for a sizeable part of the railway operating company. Therefore, it is essential to investigate executable maintenance strategies for wheelsets. In this paper, a maintenance strategy that combines periodic inspection and preventive maintenance is proposed. The wheel flange and wheel diameter deterioration models are established by the compound Poisson process based on the cumulative shock from the failure mechanism, and the Weibull distribution is adopted for modeling wheel tread failure probability. The age reduction factor is introduced to describe the maintenance effect. Then, the joint maintenance optimization model is constructed to determine the periodic inspection interval and the reprofiling strategy, with the objective of achieving a minimum maintenance cost rate and with the wheel flange thickness failure as the failure risk constraint. Lastly, a case study is provided, and the results show that, compared with the two conventional maintenance strategies with fixed inspection periods, the maintenance strategy proposed in this paper can reduce the maintenance cost rate by 27.06% and 12.0%, respectively. Moreover, the life span is prolonged by 11.51% and 11.98%, respectively.

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Section: Maintenance Probability Modelmentioning

confidence: 99%

“…Due to poor service conditions, wheelsets often have defects such as scratches, cracks, spalling, shelling and corrosion. The performance of the wheelset has a crucial impact on running safety and comfort [7,8]. The wheel flange and tread deterioration are vital factors affecting wheel performance [9].…”

Section: Introductionmentioning

confidence: 99%

Joint Maintenance Strategy Optimization for Railway Bogie Wheelset

et al. 2022

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“…As the curvatures of the wheel and rail profiles are constantly changing, the non-Hertzian contact theory is more suitable to analyze the wheel/rail contact performance. Kalker’s complete theory CONTACT, which is the most famous non-Hertzian contact theory, is suitable for theoretical analysis with high calculation precision, but not for the prediction of the wheel wear analysis with long computing speed (Kalker, 2013; Kou et al , 2021). To take into account the influence of the lateral curvature of the wheel and rail on the contact patch and effectively shorten the calculation time, the semi-Hertzian contact model and some improved semi-Hertzian contact models were proposed (Ayasse and Chollet, 2005; Piotrowski and Kik, 2008; Pombo et al , 2007; Zhu et al , 2019b; Liu et al , 2016; Zhu et al , 2019c).…”

Section: Introductionmentioning

confidence: 99%

Research on wheel wear of the light rail transit based on a modified semi-Hertzian contact model

Wang

Zhu

Zhang

et al. 2023

ILT

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Purpose While the normal wheel–rail contact model cannot be accurately used for light rail transit (LRT) wheel wear analysis with large wheelset lateral displacement and wheelset yaw angle, a modified semi-Hertzian contact model (MSHM) is proposed in the paper. Design/methodology/approach MSHM was first proposed to consider the wheelset motion with the lateral displacement and the yaw angle. Then, a dynamic model of an LRT was established and the influence of some key factors on wheel wear is analyzed. At last, after operating for a certain mileage, the predicted wheel wear is compared with the tested wheel wear. Findings Compared with the tested wheel wear, the predicted wheel wear shows a good agreement with the measured result, verifying the accuracy of MSHM. Originality/value Considering larger wheelset lateral displacement and yaw angle, MSHM can be used to calculate the wheel wear of the LRT with high accuracy.

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“…Many scholars have studied wheel wear through field measurements, laboratory tests, and theoretical prediction. Numerous research on the influence of wheel-rail profiles on dynamic performance [7,8] and deterioration in wheel-rails [9,10] have been done. In laboratory tests, wear coefficients in various wheel-rail contact conditions were also estimated [11].…”

Section: Introductionmentioning

confidence: 99%

Study on the Evolution of Wheel Wear and Its Impact on Vehicle Dynamics of High-Speed Trains

2022

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Wheel wear is one of the most critical factors affecting the vehicle performances and maintenance costs of railway vehicles. However, previous research has to ignore the initial wheel-rail profiles for the evolution of wheel wear. Therefore, this work investigates the relationship between the evolution of wheel wear corresponding to different initial wheel-rail profiles and vehicle dynamics, wheel-rail deterioration. Firstly, the evolution of wheel wear during a long service period is measured from two high-speed railway trains running on two different lines. Contact geometry, e.g., equivalent conicity and contact pair distribution, are extracted. After that, the influence of wheel wear on the vehicle dynamic performance is studied using a multi-body dynamic software. The calculated contact parameters, e.g., pressure, shear traction, and creepage, are used to analyze the distribution of rolling contact fatigue. Based on the experimental and simulation results, the initial wheel and rail profiles significantly affects the wheel wear pattern, the thin rim wheel has uniform wear, and other wheels occurs hollow wear. The hollow wear can lead to gradual deterioration of vehicle dynamics, which conversely aggravates the wheel reprofiling.

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Effect of the worn status of wheel/rail profiles on wheel wear over curved tracks

Cited by 8 publications

References 21 publications

Joint Maintenance Strategy Optimization for Railway Bogie Wheelset

Joint Maintenance Strategy Optimization for Railway Bogie Wheelset

Research on wheel wear of the light rail transit based on a modified semi-Hertzian contact model

Study on the Evolution of Wheel Wear and Its Impact on Vehicle Dynamics of High-Speed Trains

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