Inelastic ball-plane impact : an accurate way to measure the normal restitution coefficient

Marc Leconte (1) , Yves Garrabos (2, 3) , Fabien Palencia (2, 3) , Carole Lecoutre-Chabot (2, 3) , Pierre Evesque (1) , Daniel Beysens (4, 5, 3)

1 MSSMat - Laboratoire de mécanique des sols, structures et matériaux
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
3 ESEME : Équipe du Supercritique pour l'Environnement, les Matériaux et l'Espace : Équipe commune CEA-CNRS (2000-2014)
4 SBT - Service des Basses Températures
5 PMMH - Physique et mécanique des milieux hétérogènes

The authors describe a setup to measure accurately the normal restitution coefficient between a quasiresonant ball and a plane. It uses the fact that the trajectory of a single ball in a cylindrical box with a vibrating wall reduces rapidly to a merely periodic one dimensional dynamics, with little rotation. The ball speed is measured accurately from the time series of impacts. It is also used to study and calibrate a sphere-plane impact sensor. This sensor allows to determine the collision time at a microsecond accuracy and the maximum force applied.

Mots clés: Dynamics and kinematics of rigid bodies; Tribology and mechanical contacts; Friction; lubrication and wear in materials science

Domaines: Matériaux; Mécanique statistique [cond-mat.stat-mech]

Marc Leconte, Yves Garrabos, Fabien Palencia, Carole Lecoutre-Chabot, Pierre Evesque, et al.. Inelastic ball-plane impact : an accurate way to measure the normal restitution coefficient. Applied Physics Letters, 2006, 89 (24), 243518 (3 p.). ⟨10.1063/1.2400061⟩. ⟨hal-00123249⟩