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Description
  • Investigation of traction and braking phenomena in rail vehicles requires proper modelling of friction in wheel-rail contact in the mode of full sliding. Adhesion characteristic with falling velocity-dependent friction is therefore often employed. Such function however still describes a steady state, steady dry friction conditions. It is observed that the conditions may be variable, though; energy dissipation in the contact area brings a cleaning (conditioning) effect marked particularly at low adhesion and improving friction above the initial level. The present paper explains the role of this effect in measured wheel-rail adhesion characteristics obtained in laboratory experiments. They are understood and evaluated as transitions between steady characteristics for contaminated and cleaned surfaces. Mathematical description of the transition is proposed, suitable for use with any contact model using coefficient of friction as input.
  • Investigation of traction and braking phenomena in rail vehicles requires proper modelling of friction in wheel-rail contact in the mode of full sliding. Adhesion characteristic with falling velocity-dependent friction is therefore often employed. Such function however still describes a steady state, steady dry friction conditions. It is observed that the conditions may be variable, though; energy dissipation in the contact area brings a cleaning (conditioning) effect marked particularly at low adhesion and improving friction above the initial level. The present paper explains the role of this effect in measured wheel-rail adhesion characteristics obtained in laboratory experiments. They are understood and evaluated as transitions between steady characteristics for contaminated and cleaned surfaces. Mathematical description of the transition is proposed, suitable for use with any contact model using coefficient of friction as input. (en)
Title
  • Transient wheel-rail adhesion characteristics under the cleaning effect of sliding
  • Transient wheel-rail adhesion characteristics under the cleaning effect of sliding (en)
skos:prefLabel
  • Transient wheel-rail adhesion characteristics under the cleaning effect of sliding
  • Transient wheel-rail adhesion characteristics under the cleaning effect of sliding (en)
skos:notation
  • RIV/00216275:25510/14:39898102!RIV15-MSM-25510___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I
http://linked.open...iv/cisloPeriodika
  • 01 Oct 2014
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 51036
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25510/14:39898102
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • conditioning; adhesion characteristic; sliding; friction; wheel-rail contact (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [348C953FA4E5]
http://linked.open...i/riv/nazevZdroje
  • Vehicle System Dynamics
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • Neuveden
http://linked.open...iv/tvurceVysledku
  • Lata, Michael
  • Voltr, Petr
issn
  • 0042-3114
number of pages
http://bibframe.org/vocab/doi
  • 10.1080/00423114.2014.961488
http://localhost/t...ganizacniJednotka
  • 25510
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