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Monitoring of Transient Phenomena in Sliding Contact Application to Friction Brakes

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2013
auteur(s) Kasem Haytam; Witz Jean-François; Dufrenoy Philippe; Desplanques Yannick
journal (abréviation) Tribology Letters (Tribol Lett)
volume (numéro) 51 (2)
  
pages 235 – 242
résumé This work focuses on the study of transient phenomena, in particular the non-uniformity and space–time variation of friction forces and surface temperature of a brake disc during stop-braking. Friction tests were conducted on a braking tribometer. The friction forces in the contact were measured using a 3D piezoelectric sensor, while the disc surface temperature was investigated by means of a high frequency fibre-optic two-colour pyrometer. An optical lap-top device was used to keep track of disc revolutions, and an original programme was written to plot the space–time variations of the measured parameters. This new original approach helps better understand the coupling between thermal and tribological phenomena occurring during braking.
mots clés Braking Transient phenomena Friction forces Surface temperature
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