Full-scale testing of low adhesion effects with small amounts of water in the wheel/rail interface

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F20%3A39915542" target="_blank" >RIV/00216275:25510/20:39915542 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0301679X19304268" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0301679X19304268</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.triboint.2019.105907" target="_blank" >10.1016/j.triboint.2019.105907</a>

Result language
angličtina
Original language name
Full-scale testing of low adhesion effects with small amounts of water in the wheel/rail interface
Original language description
Low adhesion in the wheel/rail contact can be caused by small amounts of water combining with iron oxides. This happens in light rain or at dew point. In small-scale tests, ultra-low adhesion (<= 0.05) has not been maintained. The aim here was to see if the mechanism could be realized at a larger scale. Sustained ultra-low adhesion was achieved when water was applied constantly to the wheel/rail contact at a rate of 25 mu L/s. In these conditions wear debris and oxide was clearly visible in the contact band. Creep force data has been generated that can now be used to inform wheel/rail contact models and multi-body dynamics simulations of train behaviour with a view to developing mitigation.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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