Experimental and theoretical investigations of silo music

被引:22
|
作者
Wilde, K. [1 ]
Tejchman, J. [1 ]
Rucka, M. [1 ]
Niedostatkiewicz, M. [1 ]
机构
[1] Gdansk Univ Technol, Fac Civil & Environm Engn, Gdansk, Poland
关键词
Bulk solid; Coupled vibrations; Experimental modal testing; Silo flow; Silo music; Solid density; Time-frequency analysis; Tomography; GRANULAR-MATERIALS; MODEL SILO; FLOW; QUAKE; VIBRATION; BEHAVIOR; SHEARING; HONKING; WALL;
D O I
10.1016/j.powtec.2009.10.012
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper deals with strong dynamic effects connected with booming sound (called silo music) appearing during confined granular flow in silos. Novel experimental data have been gained through Electrical Capacitance Tomography (ECT) and an extraction of operational deflection shapes. A dynamic plane strain FE model of the granular material and oscillating wall was presented. The numerical results support the key role of dynamic coupling between silo wall oscillations and dynamics of the flowing material induced by a change of a flow direction at the transition zone between cylindrical and converging flow. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:38 / 48
页数:11
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