title: Maximizing energy transfer in vibrofluidized granular systems.
abstract: Using discrete particle simulations validated by experimental data acquired using the positron emission particle tracking technique, we study the efficiency of energy transfer from a vibrating wall to a system of discrete, macroscopic particles. We demonstrate that even for a fixed input energy from the wall, energy conveyed to the granular system under excitation may vary significantly dependent on the frequency and amplitude of the driving oscillations. We investigate the manner in which the efficiency with which energy is transferred to the system depends on the system variables and determine the key control parameters governing the optimization of this energy transfer. A mechanism capable of explaining our results is proposed, and the implications of our findings in the research field of granular dynamics as well as their possible utilization in industrial applications are discussed.
authors.affiliation: School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
authors.forename: C R K
authors.initials: CR
authors.lastname: Windows-Yule
authors.affiliation: Department of Mechanical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA.
authors.forename: A D
authors.initials: AD
authors.lastname: Rosato
authors.affiliation: School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
authors.forename: D J
authors.initials: DJ
authors.lastname: Parker
authors.affiliation: Multiscale Mechanics (MSM) and Mathematics of Computational Science (MaCS), (MESA+), CTW, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: A R
authors.initials: AR
authors.lastname: Thornton