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Modification of train resistance formulae for container trains based on operational run-down tests

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Datum publikování

2018

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The method currently used for the estimation of train resistance based on specific train resistance has some shortcomings. This method is applied by various railway infrastructure managers, e.g. in the Czech Republic. In this article, first, the Czech formulae for the calculation of train resistance of freight trains are introduced and compared with selected foreign methods. Operational experience from recent years shows that the train resistance formulae used are too conservative and do not correspond to the state-of-the-art railway technology. Therefore, a modified approach for the estimation of train resistance is proposed in this paper. The modification is based on an analysis of run-down tests conducted with ordinary container trains currently operating on the Central European railway network. The contributing factors in the proposed train resistance formula are discussed.

Rozsah stran

p. 1588-1597

ISSN

0954-4097

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Zdrojový dokument

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, volume 232, issue: 6

Vydavatelská verze

https://doi.org/10.1177/0954409717738690

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Klíčová slova

train resistance, train resistance formula, container train, operational run-down test, rolling resistance, aerodynamic resistance, traction mechanics, vozidlový odpor, vzorec vozidlového odporu, provozní výběhová zkouška, odpor z valení, aerodynamický odpor, trakční mechanika

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