Detail publikačního výsledku

On the transient mechanism of water-particle induced low-adhesion phenomenon

OMASTA, M.; SIX, K.; KVARDA, D.; GALAS, R.; SUHR, B.; KŘUPKA, I.; TRUMMER, G.; HARTL, M.

Originální název

On the transient mechanism of water-particle induced low-adhesion phenomenon

Anglický název

On the transient mechanism of water-particle induced low-adhesion phenomenon

Druh

Stať ve sborníku mimo WoS a Scopus

Originální abstrakt

The phenomenon called “wet-rail” describes a sudden drop in the friction coefficient when water, iron oxides, or other fine particles mix to form a paste-like third body. Although the phenomenon is well known from railway operations, the physical relationships are not yet fully understood. The aim is to provide experimental evidence of the transient nature of the phenomenon in rolling contacts contaminated with a water-particle suspension based on optical observation of the contact. The results support the water‑driven starvation mechanism triggering particle accumulation and load‑carrying capacity of the transient solid film.

Anglický abstrakt

The phenomenon called “wet-rail” describes a sudden drop in the friction coefficient when water, iron oxides, or other fine particles mix to form a paste-like third body. Although the phenomenon is well known from railway operations, the physical relationships are not yet fully understood. The aim is to provide experimental evidence of the transient nature of the phenomenon in rolling contacts contaminated with a water-particle suspension based on optical observation of the contact. The results support the water‑driven starvation mechanism triggering particle accumulation and load‑carrying capacity of the transient solid film.

Klíčová slova

Wheel/rail interface; low-adhesion phenomenon; solid particles; suspension; transient friction.

Klíčová slova v angličtině

Wheel/rail interface; low-adhesion phenomenon; solid particles; suspension; transient friction.

Autoři

OMASTA, M.; SIX, K.; KVARDA, D.; GALAS, R.; SUHR, B.; KŘUPKA, I.; TRUMMER, G.; HARTL, M.

Rok RIV

2026

Vydáno

22.09.2025

Nakladatel

Japanese Society of Contact Mechanics on Railway (JSCMR)

Místo

Tokyo

Kniha

Proceedings of the 13th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2025)

Strany počet

6

BibTex

@inproceedings{BUT201069,
  author="Milan {Omasta} and Klaus {Six} and Daniel {Kvarda} and Radovan {Galas} and  {} and Ivan {Křupka} and  {} and Martin {Hartl}",
  title="On the transient mechanism of water-particle induced low-adhesion phenomenon",
  booktitle="Proceedings of the 13th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (CM2025)",
  year="2025",
  pages="6",
  publisher="Japanese Society of Contact Mechanics on Railway (JSCMR)",
  address="Tokyo"
}