Vertical Oscillation of a Bed of Granular Material

[+] Author and Article Information
C. E. Brennen, S. Ghosh, C. R. Wassgren

California Institute of Technology, Pasadena, CA 91125

J. Appl. Mech 63(1), 156-161 (Mar 01, 1996) (6 pages) doi:10.1115/1.2787191 History: Received January 24, 1994; Revised November 21, 1994; Online October 26, 2007


A bed of granular material which is subjected to vertical vibration will exhibit at least one sudden expansion at a critical acceleration amplitude. This sudden expansion corresponds to a bifurcation similar to that exhibited by a single ball bouncing on a vibrating plate. Theoretical analysis based on this model yields results which are in accord with the experimental observations. Other bifurcations may occur at higher vibration levels.

Copyright © 1996 by The American Society of Mechanical Engineers
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