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Silo Music and Silo Quake: Granular Flow-Induced Vibration

Muite, Benson K and Quinn, Shandon F and Sundaresan, Sankaran and Rao, Kesava K (2004) Silo Music and Silo Quake: Granular Flow-Induced Vibration. In: Powder Technology, 145 (3). pp. 190-202.

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Abstract

Acceleration and sound measurements during granular discharge from silos are used to show that silo music is a sound resonance produced by silo quake. In tall and narrow silos, the latter is produced by stickslip friction between the wall and the granular material. For the discharge rates studied, the occurrence of flow pulsations is determined primarily by the surface properties of the granular material and the silo wall. The measurements show that the pulsating motion ofthe granular material drives the oscillatory motion of the silo.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Elsevier.
Keywords: Silo quake;silo music;stick-slip flow;resonance;creep;granular discharge
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 25 Feb 2005
Last Modified: 19 Sep 2010 04:18
URI: http://eprints.iisc.ernet.in/id/eprint/2848

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