Detail publikačního výsledku

Laboratory investigation on the particle-size effects in railway sanding: Comparisons between standard sand and its micro fragments

SHI, L.B.; WANG, C.; DING, H.H.; KVARDA, D.; GALAS, R.; OMASTA, M.; WANG, W.J.; LIU, Q.Y.; HARTL, M.

Originální název

Laboratory investigation on the particle-size effects in railway sanding: Comparisons between standard sand and its micro fragments

Anglický název

Laboratory investigation on the particle-size effects in railway sanding: Comparisons between standard sand and its micro fragments

Druh

Článek WoS

Originální abstrakt

In the railway sanding, the sand particles are firstly crushed into finer fragments in the inlet zone of wheel/rail contact. Therefore, two kinds of particles act in the sanding process: the initial sand with large sizes and the final fragments with micro sizes. To learn which kind of particles is more crucial for the sanding performances, standard sand particles (0.6–2.0 mm) and its micro fragments (0.1–30 μm) were used as two types of adhesion enhancers. The results indicated that the application of micro fragments had advantages on reducing the wear and surface damage, without losing adhesion enhancing capacities compared to the standard sand particles. However, the “fluid-driven” rolling contact fatigue (RCF) damage occurred when the micro fragments were used.

Anglický abstrakt

In the railway sanding, the sand particles are firstly crushed into finer fragments in the inlet zone of wheel/rail contact. Therefore, two kinds of particles act in the sanding process: the initial sand with large sizes and the final fragments with micro sizes. To learn which kind of particles is more crucial for the sanding performances, standard sand particles (0.6–2.0 mm) and its micro fragments (0.1–30 μm) were used as two types of adhesion enhancers. The results indicated that the application of micro fragments had advantages on reducing the wear and surface damage, without losing adhesion enhancing capacities compared to the standard sand particles. However, the “fluid-driven” rolling contact fatigue (RCF) damage occurred when the micro fragments were used.

Klíčová slova

Railway sanding, Wheel/rail adhesion, Wear and damage, Sand fragments

Klíčová slova v angličtině

Railway sanding, Wheel/rail adhesion, Wear and damage, Sand fragments

Autoři

SHI, L.B.; WANG, C.; DING, H.H.; KVARDA, D.; GALAS, R.; OMASTA, M.; WANG, W.J.; LIU, Q.Y.; HARTL, M.

Rok RIV

2021

Vydáno

01.06.2020

Nakladatel

Elsevier

Místo

Nizozemsko

ISSN

0301-679X

Periodikum

Tribology International

Svazek

146

Číslo

6

Stát

Spojené království Velké Británie a Severního Irska

Strany od

106259

Strany do

106259

Strany počet

12

URL

https://www.sciencedirect.com/science/article/pii/S0301679X20301018

BibTex

@article{BUT162105,
  author="SHI, L.B. and WANG, C. and DING, H.H. and KVARDA, D. and GALAS, R. and OMASTA, M. and WANG, W.J. and LIU, Q.Y. and HARTL, M.",
  title="Laboratory investigation on the particle-size effects in railway sanding: Comparisons between standard sand and its micro fragments",
  journal="Tribology International",
  year="2020",
  volume="146",
  number="6",
  pages="106259--106259",
  doi="10.1016/j.triboint.2020.106259",
  issn="0301-679X",
  url="https://www.sciencedirect.com/science/article/pii/S0301679X20301018"
}