Publication result detail

Testing and modelling of transient adhesion phenomena in rolling-sliding contacts

KVARDA, D.; MEIERHOFER, A.; SIX, K.

Original Title

Testing and modelling of transient adhesion phenomena in rolling-sliding contacts

English Title

Testing and modelling of transient adhesion phenomena in rolling-sliding contacts

Type

WoS Article

Original Abstract

Transient adhesion effects in rolling-sliding contacts influence all aspects of train-track interaction. This is of high importance specifically when these effects result in critically low adhesion, which poses a risk to traction and braking of railway vehicles. This study presents a model that can replicate the transient changes of the coefficient of adhesion with tested water and solid particle mix. The experimental data for the model are measured using a commercial ball-on-disc tribometer. The experimental results showed a liquid reservoir in front of the contact area that slowly reduces in size. This observation was used in the modelling approach to divide the calculation into two stages where the reservoir is present and when it disappears. The model was able to reproduce the occurrence of low adhesion region seen in experimental results with different particle concentrations.

English abstract

Transient adhesion effects in rolling-sliding contacts influence all aspects of train-track interaction. This is of high importance specifically when these effects result in critically low adhesion, which poses a risk to traction and braking of railway vehicles. This study presents a model that can replicate the transient changes of the coefficient of adhesion with tested water and solid particle mix. The experimental data for the model are measured using a commercial ball-on-disc tribometer. The experimental results showed a liquid reservoir in front of the contact area that slowly reduces in size. This observation was used in the modelling approach to divide the calculation into two stages where the reservoir is present and when it disappears. The model was able to reproduce the occurrence of low adhesion region seen in experimental results with different particle concentrations.

Keywords

coefficient of adhesion; tribology; transient effects; wheel-rail contact

Key words in English

coefficient of adhesion; tribology; transient effects; wheel-rail contact

Authors

KVARDA, D.; MEIERHOFER, A.; SIX, K.

RIV year

2025

Released

01.05.2024

Publisher

Tsinghua University

Location

Beijing

ISBN

2223-7690

Periodical

Friction

Volume

12

Number

5

State

People's Republic of China

Pages from

1016

Pages to

1027

Pages count

12

URL

https://link.springer.com/article/10.1007/s40544-023-0825-8

Full text in the Digital Library

http://hdl.handle.net/11012/245200

BibTex

@article{BUT187739,
  author="Daniel {Kvarda} and Alexander {Meierhofer} and Klaus {Six}",
  title="Testing and modelling of transient adhesion phenomena in rolling-sliding contacts",
  journal="Friction",
  year="2024",
  volume="12",
  number="5",
  pages="1016--1027",
  doi="10.1007/s40544-023-0825-8",
  issn="2223-7690",
  url="https://link.springer.com/article/10.1007/s40544-023-0825-8"
}

Documents

s40544-023-0825-8