Silo music and silo quake: Granular flow-induced vibration

Benson K. Muite, Shandon F. Quinn, Sankaran Sundaresan, K. Kesava Rao

Research output: Contribution to journalArticlepeer-review

58 Scopus citations


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 stick-slip 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 of the granular material drives the oscillatory motion of the silo.

Original languageEnglish (US)
Pages (from-to)190-202
Number of pages13
JournalPowder Technology
Issue number3
StatePublished - Aug 9 2004

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering


  • Creep
  • Granular discharge
  • Resonance
  • Silo music
  • Silo quake
  • Stick-slip flow


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