Development of surface topography for the rail-wheel contact

M. Schargott, Valentin Leonidovich Popov, A. I. Dmitriev, S. G. Psakhie

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We investigate the development of surface topography of two solids in a high-pressure frictional contact, like the rail-wheel contact. The friction process is simulated with the method of Movable Cellular Automata. It is shown that a quasi-fluid layer develops that influences the change of the surface topography and shows stochastic vertical migration. The resulting surfaces are analysed and the corresponding power spectra calculated. We further present a model that describes the basic processes in the quasi-fluid layer, like plastic deformation, detachment of wear particles and their reintegration and calculate the resulting time-dependent power spectra numerically and analytically.

Original languageEnglish
Pages (from-to)1542-1548
Number of pages7
JournalWear
Volume265
Issue number9-10
DOIs
Publication statusPublished - 30 Oct 2008
Externally publishedYes

Fingerprint

rails
Surface topography
wheels
Power spectrum
Rails
Wheels
topography
Fluids
power spectra
Cellular automata
Plastic deformation
fluids
cellular automata
Wear of materials
Friction
detachment
plastic deformation
friction

Keywords

  • Fokker-Planck-equation
  • Movable cellular automata
  • Stochastic surfaces

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

Cite this

Schargott, M., Popov, V. L., Dmitriev, A. I., & Psakhie, S. G. (2008). Development of surface topography for the rail-wheel contact. Wear, 265(9-10), 1542-1548. https://doi.org/10.1016/j.wear.2007.12.018

Development of surface topography for the rail-wheel contact. / Schargott, M.; Popov, Valentin Leonidovich; Dmitriev, A. I.; Psakhie, S. G.

In: Wear, Vol. 265, No. 9-10, 30.10.2008, p. 1542-1548.

Research output: Contribution to journalArticle

Schargott, M, Popov, VL, Dmitriev, AI & Psakhie, SG 2008, 'Development of surface topography for the rail-wheel contact', Wear, vol. 265, no. 9-10, pp. 1542-1548. https://doi.org/10.1016/j.wear.2007.12.018
Schargott, M. ; Popov, Valentin Leonidovich ; Dmitriev, A. I. ; Psakhie, S. G. / Development of surface topography for the rail-wheel contact. In: Wear. 2008 ; Vol. 265, No. 9-10. pp. 1542-1548.
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