ABSTRACT

The controlled transport of bulk cargoes by means of vibratory conveyors is of major importance for a whole variety of industrial processes (Rademacher 1994; Sloot & Kruyt 1996). The granular material is usually (i) agitated by a stick-slip drag on a horizontally vibrated deck with asymmetric forward and backward motions, (ii) forced to perform ballistic flights if the vertical component of the acceleration exceeds gravity, or (iii) can be transported horizontally by a vertically oscillating asymmetric sawtooth-shaped profile of the base (Farkas et al. 1999).