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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 (&lt;= 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 (&lt;= 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Tribology International

ISSN

0301-679X

e-ISSN

—

Svazek periodika

141

Číslo periodika v rámci svazku

16.8.2019

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000505271400009

EID výsledku v databázi Scopus

2-s2.0-85070874028