Assessment of non-Hertzian wheel-rail contact models for numerical simulation of rail damages in switch panel of railway turnout

Ma, Xinkai; Wang, Ping; Xu, Jingmang; Chen, Rong; Wang, Jian

doi:10.1016/j.wear.2019.05.027

Cited by 9 publications

(11 citation statements)

References 34 publications

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“…The theory of elastohydrodynamic lubrication, as mentioned previously, is established by incorporating contact model with solution of the Reynolds equation, and contact analysis plays a crucial role in predicting wear and contact fatigue, as will be discussed in Section 6.4. Wheel-rail contact is another widely concerned subject of contact mechanics, and various models and numerical approaches for both Hertz and non-Hertzian contacts have been proposed to predict damages in railway system [640,641].…”

Section: Applicationsmentioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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Section: Applicationsmentioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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“…Crossing wear prediction [18,21,22]. Switch surface RCF prediction [12,20,22,25,26]. Crossing surface RCF prediction [22].…”

Section: Limitations Research Interest Single-layer Co-running Trackmentioning

confidence: 99%

“…A summary of the advantages and limitations, as well as examples in the literature of modelling through combined approaches, is shown in Table 4. [20,25].…”

Section: Combined Mbs and Fe Modelling Approachesmentioning

confidence: 99%

“…CONTACT [106] Considers a variety of contact patch shapes [9,106]. Benchmark for other contact models [20].…”

Section: Kalker's Contact [106]mentioning

confidence: 99%

“…Sichani et al [110] modified the FASTSIM algorithm by developing the 'FaStrip' algorithm, considering a wider range of contact ellipses and effects of large spin. This was carried out by using a single weighted average of flexibility coefficients [110], to associate the shear stresses with creepage in three dimensions [20].…”

Section: Tangential Contact Modelsmentioning

confidence: 99%

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Evaluation of Numerical Simulation Approaches for Simulating Train–Track Interactions and Predicting Rail Damage in Railway Switches and Crossings (S&Cs)

2021

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Switch and crossing (S&C) faults are a major cause of track-related delays and account for a significant proportion of maintenance and renewal budgets for railway infrastructure managers around the world. Although various modelling approaches have been proposed in the literature for the simulation of vehicle–track dynamic interaction, wheel–rail contact and damage prediction, there is a lack of evaluation for combining these approaches to effectively predict the failure mechanism. An evaluation of S&C modelling approaches has therefore been performed in this article to justify their selection for the research interests of predicting the most dominant failure mechanisms of wear, rolling contact fatigue (RCF) and plastic deformation in S&C rails by recognising the factors that influence the accuracy and efficiency of the proposed modelling approaches. A detailed discussion of the important modelling aspects has been carried out by considering the effectiveness of each individual approach and the combination of different approaches, along with a suggestion of appropriate modelling approaches for predicting the dominant failure mechanisms.

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A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control

et al. 2023

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Tread wear and rolling contact fatigue (RCF) damage propagated on railway wheels are the two extremely important focal points as they can tremendously deteriorate wheel/rail interactions and hunting stability and destroy wheel surface materials, and subsequently, cut down the lifetime of the wheels. The on-board anti-slip controllers are of essence aiming to hold back the striking slipping of the powered wheelsets under low-adhesion wheel/rail conditions. This paper intends to investigate the impact of anti-slip control on wheel tread wear and fatigue damage under diverse wheel/rail friction conditions. To this end, a prediction model for wheel wear and fatigue damage evolution on account of a comprehensive vehicle-track interaction model is extended, where the wheel/rail non-Hertzian contact algorithm is used. Furthermore, the effect of frictional wear on the fatigue damage at wheel surface is considered. The simulation results indicate that the wheel/rail contact is full-slip under the low-adhesion conditions with braking effort. The wear amount under the low-adhesion conditions is observably higher than that under the dry condition. It is further suggested that the wheel tread is prone to suffering more serious wear and fatigue damage issues with a higher anti-slip control threshold compared to that with a lower one.

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Assessment of non-Hertzian wheel-rail contact models for numerical simulation of rail damages in switch panel of railway turnout

Cited by 9 publications

References 34 publications

A review of recent advances in tribology

A review of recent advances in tribology

Evaluation of Numerical Simulation Approaches for Simulating Train–Track Interactions and Predicting Rail Damage in Railway Switches and Crossings (S&Cs)

A numerical study on tread wear and fatigue damage of railway wheels subjected to anti-slip control

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