Effects of Track Elasticity on Wheel-Rail Dynamic Performance of Heavy Haul Railway

Yong Zeng

doi:10.4028/www.scientific.net/AMM.744-746.1249

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 744-746Effects of Track Elasticity on Wheel-Rail Dynamic...

Effects of Track Elasticity on Wheel-Rail Dynamic Performance of Heavy Haul Railway

Abstract:

Two vehicle-track dynamics models on heavy haul railway are established in two conditions of rigid track and elastic track. And the impact of track elasticity on the wheel-rail dynamics performance was analyzed using models. The results show that the critical speed of heavy vehicles and wheel-rail dynamic indexes, such as wheel-rail lateral force and wheel-rail vertical force decreased on elastic track compared with rigid track. However, other dynamic indexes, including derailment coefficient and lateral displacement of wheelsets increased on elastic track. And the wheel-rail wear indexes are some differences on two tracks.

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Periodical:

Applied Mechanics and Materials (Volumes 744-746)

Pages:

1249-1252

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.744-746.1249

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Online since:

March 2015

Authors:

Yong Zeng*

Keywords:

Heavy Haul Railway, Track Elasticity, Vehicle-Track Dynamic Models, Wheel-Rail Dynamic Performance

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* - Corresponding Author

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