The Experimental Determination of the Grease Amount to Effective Wear Reduction in the Wheel-Rail Contact

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU111127" target="_blank" >RIV/00216305:26210/14:PU111127 - 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

The Experimental Determination of the Grease Amount to Effective Wear Reduction in the Wheel-Rail Contact

Popis výsledku v původním jazyce

The wear mechanisms within the wheel flange and rail gauge contact affect safety and operating costs of railway transport. This contact occurs when a rail vehicle reaches a curved track. A low coefficient of friction (COF) is required. This COF and wearrate are influenced by operating conditions (load, velocity and temperature), lubrication and geometry (i.e. the track curvature radius). The dam-age to the contact surfaces can be decreased by using on-board lubrication sys-tems. Grease is applied to the first wheelset of a driving car by a nozzle. The rate of wear reduction depends on the grease amount and its application intervals in-troduced by the on-board lubrication system into the contact. In this paper, the full-scale laboratory apparatus has been used to study friction, wear and lubricant film distribution under pure sliding conditions in the wheel flange contact. The grease amount and its appropriate application intervals were found.

Název v anglickém jazyce

The Experimental Determination of the Grease Amount to Effective Wear Reduction in the Wheel-Rail Contact

Popis výsledku anglicky

The wear mechanisms within the wheel flange and rail gauge contact affect safety and operating costs of railway transport. This contact occurs when a rail vehicle reaches a curved track. A low coefficient of friction (COF) is required. This COF and wearrate are influenced by operating conditions (load, velocity and temperature), lubrication and geometry (i.e. the track curvature radius). The dam-age to the contact surfaces can be decreased by using on-board lubrication sys-tems. Grease is applied to the first wheelset of a driving car by a nozzle. The rate of wear reduction depends on the grease amount and its application intervals in-troduced by the on-board lubrication system into the contact. In this paper, the full-scale laboratory apparatus has been used to study friction, wear and lubricant film distribution under pure sliding conditions in the wheel flange contact. The grease amount and its appropriate application intervals were found.

Druh

D - Stať ve sborníku

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

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Book of Proceedings of the 55th International Conference of Machine Design Departments

ISBN

978-80-01-05542-7

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

117-122

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Beroun

Datum konání akce

9. 9. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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