Elimination of Vibrations in an Ore Unloading Bin

[+] Author and Article Information
M. L. Wei

Bethlehem Steel Corp., Bethlehem, Pa.

J. R. Johanson

Jenike & Johanson, Inc., Burlington, Mass.

J. Eng. Ind 96(3), 761-764 (Aug 01, 1974) (4 pages) doi:10.1115/1.3438435 History: Received July 02, 1973; Online July 15, 2010


Problems of undesirable vibrations in an ore unloading structure are described. Earlier unsuccessful attempts to eliminate vibrations by changing allegedly exciting frequencies mechanically and by increasing natural frequencies structurally are cited. Scientific evaluations of granular material flow patterns in the bin are presented, which identify possible causes of and methods to alleviate the vibrations. Finally, the corrective measures in flow control taken to eliminate vibrations are illustrated.

Copyright © 1974 by ASME
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