2022
DOI: 10.1007/s40534-022-00279-w
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Simulation of wheel and rail profile wear: a review of numerical models

Abstract: 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… Show more

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Cited by 23 publications
(15 citation statements)
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“…Drawing on the previous research ideas, this paper adopts rectangular groove equivalent to the actual wheel-rail crack damage in the simulation analysis [28][29][30]; corrosion usually corrodes downward from the middle point and then expands to both sides, so the simulation adopts inverted triangular groove equivalent to the actual wheel-rail corrosion damage [31]; the wear is usually a concave arc, and elliptical groove equivalent to the actual wheel-rail wear damage is adopted in the simulation [32]. By analyzing and comparing the model results without defects and the simulation results of several defects, the existence of defects and the location of defects can be judged more clearly and intuitively.…”
Section: B Construction Of the Wheel-rail Modelmentioning
confidence: 99%
“…Drawing on the previous research ideas, this paper adopts rectangular groove equivalent to the actual wheel-rail crack damage in the simulation analysis [28][29][30]; corrosion usually corrodes downward from the middle point and then expands to both sides, so the simulation adopts inverted triangular groove equivalent to the actual wheel-rail corrosion damage [31]; the wear is usually a concave arc, and elliptical groove equivalent to the actual wheel-rail wear damage is adopted in the simulation [32]. By analyzing and comparing the model results without defects and the simulation results of several defects, the existence of defects and the location of defects can be judged more clearly and intuitively.…”
Section: B Construction Of the Wheel-rail Modelmentioning
confidence: 99%
“…The global computation of wear is performed using the Simpack wear module, while the local computation is carried out by means of a dedicated Matlab routine, which reads the contact patch data obtained from the dynamic simulation. The Simpack wear module computes the worn volume ΔW in each contact point position for each time step according to eqn (1), in which N is the normal load, H is the hardness of the softer material, s is the total sliding distance and kArch is the wear coefficient, which is a function of sliding speed and contact pressure. The wear coefficient is obtained from the KTH wear map as a function of the contact pressure and of the sliding speed, with a reduction of the nominal values by a factor 7 to account for natural contamination at the wheel-rail contact, as suggested by Jendel [28] and Jendel and Berg [29].…”
Section: Wear Computationmentioning
confidence: 99%
“…Currently, the typical strategy adopted to predict wear of wheel profiles is based on numerical tools that include a module for the vehicle-track dynamic simulation, usually implemented in a commercial multibody (MB) software package, and a module that computes the worn profile starting from the outputs of the dynamic simulation [1]. In the past, the wear module was implemented in the MB code used for the dynamic simulation in the form of a user-written routine, while nowadays several wear computation tools rely on co-simulation approaches, with the wear module implemented in a different computational environment [2].…”
Section: Introductionmentioning
confidence: 99%
“…This approach, however, is makes use of lookup tables which only provide the total creep forces, hence not allowing to determine the distribution of local stresses and frictional power in the contact region which are generally required for wear and RCF estimations. 15 To overcome this problem, in this paper, we apply an extended version of the FASTSIM algorithm for a SDEC region which we recently proposed, 16 extending its use to a generic non-elliptic contact area and we assess the accuracy of this algorithm in the prediction of wheel wear and RCF using CONTACT as a term of comparison. The numerical results show that the extended FASTSIM provides better agreement to the results of CONTACT than other commonly used existing models for detailed analysis of wheel wear and RCF.…”
Section: Introductionmentioning
confidence: 99%
“…This approach, however, is makes use of lookup tables which only provide the total creep forces, hence not allowing to determine the distribution of local stresses and frictional power in the contact region which are generally required for wear and RCF estimations. 15…”
Section: Introductionmentioning
confidence: 99%