Influence of unilateral low adhesion on transient wheel-rail rolling contact and wheel damages

Xin Zhao*, Shuangchao Huang, Shan Yin, Jizhong Yang, Zhen Yang, Gongquan Tao, Zefeng Wen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A time-domain finite element model is developed to study the transient rolling contact of a driving wheelset over a curved track with Low Adhesion Zones (LAZs) shorter than 1.0 m. LAZs on one rail, i.e., unilateral LAZs occurring more likely, is treated for a speed up to 500 km/h. Structural vibrations of wheelset are analyzed to explain the transient contact forces, creepages and the resulting irregular wear. LAZs on high rails are found more detrimental than those on low rails. The results explain the occurrence of flats and rolling contact fatigue in bad weather, although significant wheel idling is absent.

Original languageEnglish
Article number205053
Number of pages15
JournalWear
Volume530-531
DOIs
Publication statusPublished - 2023

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Explicit FE method
  • High-speed
  • Irregular wear
  • Low adhesion
  • Vibrations
  • Wheel-rail rolling contact

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