title: Geometrical model for a particle on a rough inclined surface.
abstract: A simple geometrical model is presented for the gravity-driven motion of a single particle on a rough inclined surface. Adopting a simple restitution law for the collisions between the particle and the surface, we arrive at a model in which the dynamics is described by a one-dimensional map. This map is studied in detail and it is shown to exhibit several dynamical regimes (steady state, chaotic behavior, and accelerated motion) as the model parameters vary. A phase diagram showing the corresponding domain of existence for these regimes is presented. The model is also found to be in good qualitative agreement with recent experiments on a ball moving on a rough inclined line.
authors.affiliation: Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife, Brazil.
authors.forename: G L
authors.initials: GL
authors.lastname: Vasconcelos
authors.forename: J J
authors.initials: JJ
authors.lastname: Veerman