Effect of Friction Modifiers on Adhesion in Wheel-Rail Contact

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU116055" target="_blank" >RIV/00216305:26210/15:PU116055 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Friction Modifiers on Adhesion in Wheel-Rail Contact

Popis výsledku v původním jazyce

One of the key factors in railway transportation is adhesion since it influences safety and energy efficiency of the traffic. However, the adhesion level is strongly dependent on operating and environmental conditions. Under wet conditions and when leaves are on the track, poor adhesion causes braking and traction difficulties. In this case, sanding is often used to increase adhesion. On the other hand, under dry conditions the adhesion level may be unnecessarily high; this leads to higher wear, vibrations and noise. Therefore top-of-rail friction modifiers have been developed to ensure an appropriate adhesion level. The friction modifiers are substances of complex composition that influences adhesion. The objective of this study is to investigate effect of the friction modifiers composition on the adhesion in the wheel-rail contact under dry and wet conditions. The experiments were carried out using a ball-on-disc tribometer and a twin-disc tribometer under various conditions. Tractio

Název v anglickém jazyce

Effect of Friction Modifiers on Adhesion in Wheel-Rail Contact

Popis výsledku anglicky

One of the key factors in railway transportation is adhesion since it influences safety and energy efficiency of the traffic. However, the adhesion level is strongly dependent on operating and environmental conditions. Under wet conditions and when leaves are on the track, poor adhesion causes braking and traction difficulties. In this case, sanding is often used to increase adhesion. On the other hand, under dry conditions the adhesion level may be unnecessarily high; this leads to higher wear, vibrations and noise. Therefore top-of-rail friction modifiers have been developed to ensure an appropriate adhesion level. The friction modifiers are substances of complex composition that influences adhesion. The objective of this study is to investigate effect of the friction modifiers composition on the adhesion in the wheel-rail contact under dry and wet conditions. The experiments were carried out using a ball-on-disc tribometer and a twin-disc tribometer under various conditions. Tractio

Druh

O - Ostatní výsledky

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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