Testing and modelling of transient adhesion phenomena in rolling-sliding contacts
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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-12-01
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| Series: | Friction |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s40544-023-0825-8 |
| _version_ | 1797273226956505088 |
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| author | Daniel Kvarda Alexander Meierhofer Klaus Six |
| author_facet | Daniel Kvarda Alexander Meierhofer Klaus Six |
| author_sort | Daniel Kvarda |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-07T14:41:26Z |
| format | Article |
| id | doaj.art-1ad83bc46a0e4c768f5df36c57268ce9 |
| institution | Directory Open Access Journal |
| issn | 2223-7690 2223-7704 |
| language | English |
| last_indexed | 2024-03-07T14:41:26Z |
| publishDate | 2023-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Friction |
| spelling | doaj.art-1ad83bc46a0e4c768f5df36c57268ce92024-03-05T20:19:42ZengSpringerOpenFriction2223-76902223-77042023-12-011251016102710.1007/s40544-023-0825-8Testing and modelling of transient adhesion phenomena in rolling-sliding contactsDaniel Kvarda0Alexander Meierhofer1Klaus Six2Faculty of Mechanical Engineering, Brno University of TechnologyVirtual Vehicle Research GmbHVirtual Vehicle Research GmbHAbstract 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.https://doi.org/10.1007/s40544-023-0825-8coefficient of adhesiontribologytransient effectswheel–rail contact |
| spellingShingle | Daniel Kvarda Alexander Meierhofer Klaus Six Testing and modelling of transient adhesion phenomena in rolling-sliding contacts Friction coefficient of adhesion tribology transient effects wheel–rail contact |
| title | Testing and modelling of transient adhesion phenomena in rolling-sliding contacts |
| title_full | Testing and modelling of transient adhesion phenomena in rolling-sliding contacts |
| title_fullStr | Testing and modelling of transient adhesion phenomena in rolling-sliding contacts |
| title_full_unstemmed | Testing and modelling of transient adhesion phenomena in rolling-sliding contacts |
| title_short | Testing and modelling of transient adhesion phenomena in rolling-sliding contacts |
| title_sort | testing and modelling of transient adhesion phenomena in rolling sliding contacts |
| topic | coefficient of adhesion tribology transient effects wheel–rail contact |
| url | https://doi.org/10.1007/s40544-023-0825-8 |
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