The traction performance of a locomotive under real operational conditions is strongly dependent on friction conditions present at the wheel-rail interface. The tribology of the contact process changes during the locomotive running process and the conditions are not ideal due to the presence of a third body layer between wheels and rails. This leads to the complexities of the non-linear wheel-rail contact. To describe this system correctly, the real working conditions need to be known. The exact conditions are both complex and vary with location because of the potential presence of additional contamination material. The realization of high adhesion under traction or braking assumes that a locomotive produces a high slip that removes some of the third body material in the contact and this effect leads to an increase in values of friction coefficient from the leading to each subsequent following wheel on each side of the bogie. The resulting friction change can improve the tractive effort of a locomotive that is a key issue for railway operations. In this paper, the change of friction coefficients under traction are investigated by means of engineering analysis and some assumptions have been stated to generate input parameters for wheel-rail contact modelling in order to understand the influence of this rail cleaning process on locomotive dynamics. The assumptions made allow adopting a progressive increase of friction coefficient under an analytical assumption for each wheel. The multibody model of a high adhesion locomotive that includes a traction system has been developed in a specialized multibody software. The results obtained show the changes in dynamic behavior of a locomotive and indicate the influence on traction performance.
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2017 Joint Rail Conference
April 4–7, 2017
Philadelphia, Pennsylvania, USA
Conference Sponsors:
- Rail Transportation Division
ISBN:
978-0-7918-5071-8
PROCEEDINGS PAPER
Rail Cleaning Process and its Influence on Locomotive Performance Available to Purchase
Maksym Spiryagin,
Maksym Spiryagin
Central Queensland University, Rockhampton, Australia
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Peter Wolfs,
Peter Wolfs
Central Queensland University, Rockhampton, Australia
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Qing Wu,
Qing Wu
Central Queensland University, Rockhampton, Australia
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Colin Cole,
Colin Cole
Central Queensland University, Rockhampton, Australia
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Sanath Alahakoon,
Sanath Alahakoon
Central Queensland University, Rockhampton, Australia
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Yan Quan Sun,
Yan Quan Sun
Central Queensland University, Rockhampton, Australia
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Tim McSweeney,
Tim McSweeney
Central Queensland University, Rockhampton, Australia
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Valentyn Spiryagin
Valentyn Spiryagin
ZhelDorRemMash JSC, Yaroslavl, Russia
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Maksym Spiryagin
Central Queensland University, Rockhampton, Australia
Peter Wolfs
Central Queensland University, Rockhampton, Australia
Qing Wu
Central Queensland University, Rockhampton, Australia
Colin Cole
Central Queensland University, Rockhampton, Australia
Sanath Alahakoon
Central Queensland University, Rockhampton, Australia
Yan Quan Sun
Central Queensland University, Rockhampton, Australia
Tim McSweeney
Central Queensland University, Rockhampton, Australia
Valentyn Spiryagin
ZhelDorRemMash JSC, Yaroslavl, Russia
Paper No:
JRC2017-2222, V001T10A003; 7 pages
Published Online:
July 19, 2017
Citation
Spiryagin, M, Wolfs, P, Wu, Q, Cole, C, Alahakoon, S, Sun, YQ, McSweeney, T, & Spiryagin, V. "Rail Cleaning Process and its Influence on Locomotive Performance." Proceedings of the 2017 Joint Rail Conference. 2017 Joint Rail Conference. Philadelphia, Pennsylvania, USA. April 4–7, 2017. V001T10A003. ASME. https://doi.org/10.1115/JRC2017-2222
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