Influence of the road-surface texture on the speed dependency of tire/road friction - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2005

Influence of the road-surface texture on the speed dependency of tire/road friction

Résumé

Tire/wet road friction depends on two road-surface texture scales: the macrotexture (centimeter- to millimeter dimensions) is responsible for the speed dependency of friction, and the microtexture (submillimeter dimensions) is responsible for the friction level at any speed. This paper deals firstly with the description of road-microtexture, the macrotexture scale being well documented. Considering the fact that rubber energy-loss controls tire/wet road friction and that angularity of road-surface asperities influences greatly tire deformation, the second author has proposed a description method derived from the motif-combination technique. This method defines two parameters related to the sharpness of asperity summits and the relative position of these summits. A model has been then proposed by the first author to describe the friction-speed curve from road surface macro- and microtexture descriptors, tire-related characteristics (rubber properties, wear) and road wetness. The description is based on the Stribeck curve. The speed-dependency friction model is applied to the analysis of car-braking tests. Comparisons between calculated and measured friction-coefficients at different braking speeds are presented and discussed.
Fichier principal
Vignette du fichier
doc00013630.pdf (357.17 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00851275 , version 1 (13-08-2013)

Identifiants

  • HAL Id : hal-00851275 , version 1

Citer

Minh Tan Do, Hassan Zahouani. Influence of the road-surface texture on the speed dependency of tire/road friction. 10th International Conference Metrology and Properties of Engineering Surfaces, Jul 2005, Saint-Etienne, France. 11p., schémas, tabl., graphiques, ill. ⟨hal-00851275⟩
101 Consultations
1016 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More