Effects of rail hardness on transverse profile evolution and computed contact conditions in a full-scale wheel-rail test rig evaluation

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-10-09 DOI:10.1016/j.wear.2024.205589

K. Oldknow , R. Stock , E. Vollebregt

引用次数: 0

Abstract

This paper revisits a comprehensive data set generated in a prior test program using a full-scale wheel-rail test rig. The test program evaluated premium and standard grade rail steels with respect to wear and rolling contact fatigue (RCF). The current work evaluates the evolution of rail profiles throughout the test cases, taking advantage of the database of wheel and rail profiles that were collected. Contact conditions are modelled using the CONTACT library, including recent developments in the handling of conformal geometries and interfacial layers. Observations are made regarding the relative characteristics of rail profiles for each steel type, as they evolve with accumulated wheel passes, on the basis of the computed contact conditions.

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全尺寸轮轨试验台评估中，轨道硬度对横向轮廓演变和计算接触条件的影响

本文重新审视了之前使用全尺寸轮轨试验台进行的试验项目中生成的综合数据集。该测试程序评估了优质和标准等级钢轨的磨损和滚动接触疲劳 (RCF)。目前的工作是利用收集到的车轮和钢轨轮廓数据库，评估整个测试案例中钢轨轮廓的演变情况。接触条件使用 CONTACT 库建模，包括处理保形几何形状和界面层的最新进展。在计算接触条件的基础上，对每种钢材的钢轨轮廓的相对特性进行了观察，因为它们随着车轮通过次数的累积而变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.