Wear Problems of High-Speed Wheel/Rail Systems: Observations, Causes, and Countermeasures in China

Zhai, Wanming; Jin, Xuesong; Wen, Zefeng; Zhao, Xin

doi:10.1115/1.4048897

Cited by 99 publications

(28 citation statements)

References 48 publications

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“…For a comprehensive literature review concerning OOR of railway wheels, see Refs. [28,29]. The theoretical basis of this submodule is mainly based on the following findings.…”

Section: Rigid-flexible Mbs Modelmentioning

confidence: 99%

Railway wheel profile fine-tuning system for profile recommendation

Vuitton

Sun

et al. 2021

Rail. Eng. Science

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This paper develops a wheel profile fine-tuning system (WPFTS) that comprehensively considers the influence of wheel profile on wheel damage, vehicle stability, vehicle safety, and passenger comfort. WPFTS can recommend one or more optimized wheel profiles according to train operators’ needs, e.g., reducing wheel wear, mitigating the development of wheel out-of-roundness (OOR), improving the shape stability of the wheel profile. Specifically, WPFTS includes four modules: (I) a wheel profile generation module based on the rotary-scaling fine-tuning (RSFT) method; (II) a multi-objective generation module consisting of a rigid multi-body dynamics simulation (MBS) model, an analytical model, and a rigid–flexible MBS model, for generating 11 objectives related to wheel damage, vehicle stability, vehicle safety, and passenger comfort; (III) a weight assignment module consisting of an adaptive weight assignment strategy and a manual weight assignment strategy; and (IV) an optimization module based on radial basis function (RBF) and particle swarm optimization (PSO). Finally, three cases are introduced to show how WPTFS recommends a wheel profile according to train operators’ needs. Among them, a wheel profile with high shape stability, a wheel profile for mitigating the development of wheel OOR, and a wheel profile considering hunting stability and derailment safety are developed, respectively.

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“…For a comprehensive literature review concerning OOR of railway wheels, see Refs. [28,29]. The theoretical basis of this submodule is mainly based on the following findings.…”

Section: Rigid-flexible Mbs Modelmentioning

confidence: 99%

Railway wheel profile fine-tuning system for profile recommendation

Vuitton

Sun

et al. 2021

Rail. Eng. Science

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“…The wheelset is a crucial part of railway vehicles, whose performance heavily influences the safety and comfort of the vehicle operation [1]. The polygonal wheel fault is one of the most common faults of the wheelset.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Nonstationary Representations of a Railway Vehicle Considering Wheel Polygonalization under Variable Speed Conditions

Zhao

Yang

et al. 2023

Preprint

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Wheel Polygonalization is one of the most common failures of the wheelset, which can directly affect the safety and comfort of railway vehicle operation. In the actual condition, traction/braking torque continuously acts on the polygonal wheel fault can result in the modulation of its vibration representation, and then influence the effect of the feature exaction of the polygonal wheel faults. Considering this phenomenon, this study aims to clarify the forming mechanism of fault signals under variable speed conditions to improve the accuracy of feature extraction and ensure the safe operation of vehicles. This paper derived the Lagrangian equations with the dissipation function of a railway vehicle model with polygonal wheel fault under traction/braking conditions. After that, the modulation representation under constant speed, linear variable speeds, and nonlinear variable speeds are investigated, respectively. Finally, the vibration evolution of polygonal faults under different working conditions is visualized using statistical features. Compared with the constant speed, the curve in the time domain has more high-frequency fluctuations under variable conditions, and the phase modulation causes the half-wave asymmetry of the waveform. In the time-frequency domain, the continuous input of torque increases the harmonics frequency and side frequency response of fault response and excites the resonance frequency of the vehicle system. The dynamic evolution of fault statistical characteristics is positively correlated with speed and fault severity, and the fluctuation is sharper under braking conditions. The results can provide the theoretical support for feature extraction, interpretable features, and intelligent diagnosis of polygon faults.

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“…Therefore, a deep knowledge of wheel and rail damage mechanisms is the key to improve the wheel-rail interface tribological behaviour, by minimizing wear and RCF negative effects, as well as to optimize maintenance scheduling. Recently, a massive experimental campaign was performed to investigate transversal and longitudinal wear on wheel and rails on Chinese high-speed lines [11]. Nevertheless, such experimental tests demand a huge amount of data as well as long times and high costs.…”

Section: Introductionmentioning

confidence: 99%

Simulation of wheel and rail profile wear: a review of numerical models

2022

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The development of numerical models able to compute the wheel and rail profile wear is essential to improve the scheduling of maintenance operations required to restore the original profile shapes. This work surveys the main numerical models in the literature for the evaluation of the uniform wear of wheel and rail profiles. The standard structure of these tools includes a multibody simulation of the wheel–track coupled dynamics and a wear module implementing an experimental wear law. Therefore, the models are classified according to the strategy adopted for the worn profile update, ranging from models performing a single computation to models based on an online communication between the dynamic and wear modules. Nevertheless, the most common strategy nowadays relies on an iteration of dynamic simulations in which the profiles are left unchanged, with co-simulation techniques often adopted to increase the computational performances. Work is still needed to improve the accuracy of the current models. New experimental campaigns should be carried out to obtain refined wear coefficients and models, while strategies for the evaluation of both longitudinal and transversal wear, also considering the effects of tread braking, should be implemented to obtain accurate damage models.

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Wear Problems of High-Speed Wheel/Rail Systems: Observations, Causes, and Countermeasures in China

Cited by 99 publications

References 48 publications

Railway wheel profile fine-tuning system for profile recommendation

Railway wheel profile fine-tuning system for profile recommendation

Dynamic Nonstationary Representations of a Railway Vehicle Considering Wheel Polygonalization under Variable Speed Conditions

Simulation of wheel and rail profile wear: a review of numerical models

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