Effect of particle shape on the efficiency of granular dampers
Granular dampers, containers partially filled with granular material, are often applied for attenuating mechanical vibrations in a broad range of systems. However, the role of the particle shape on the performance of the damper has remained largely uncertain and is investigated here by means of part...
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2017-01-01
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Online Access: | https://doi.org/10.1051/epjconf/201714006006 |
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doaj-429a006af7d0420a9967e73c099b51fa2021-08-02T09:18:12ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400600610.1051/epjconf/201714006006epjconf162055Effect of particle shape on the efficiency of granular dampersPourtavakoli Hamzeh0Parteli Eric J. R.1Pöschel Thorsten2University of Erlangen-NurembergUniversity of CologneUniversity of Erlangen-NurembergGranular dampers, containers partially filled with granular material, are often applied for attenuating mechanical vibrations in a broad range of systems. However, the role of the particle shape on the performance of the damper has remained largely uncertain and is investigated here by means of particle-based simulations. It is found that, for large excitation amplitudes (collect-and-collide regime), particle shape nearly does not affect the damper’s performance. For low excitation amplitudes (gas-like regime), a dependence on the average dissipated energy per cycle on the particle shape is found. In this regime, the spherical particle geometry leads to the highest damper’s efficiency.https://doi.org/10.1051/epjconf/201714006006 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Pourtavakoli Hamzeh Parteli Eric J. R. Pöschel Thorsten |
spellingShingle |
Pourtavakoli Hamzeh Parteli Eric J. R. Pöschel Thorsten Effect of particle shape on the efficiency of granular dampers EPJ Web of Conferences |
author_facet |
Pourtavakoli Hamzeh Parteli Eric J. R. Pöschel Thorsten |
author_sort |
Pourtavakoli Hamzeh |
title |
Effect of particle shape on the efficiency of granular dampers |
title_short |
Effect of particle shape on the efficiency of granular dampers |
title_full |
Effect of particle shape on the efficiency of granular dampers |
title_fullStr |
Effect of particle shape on the efficiency of granular dampers |
title_full_unstemmed |
Effect of particle shape on the efficiency of granular dampers |
title_sort |
effect of particle shape on the efficiency of granular dampers |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2017-01-01 |
description |
Granular dampers, containers partially filled with granular material, are often applied for attenuating mechanical vibrations in a broad range of systems. However, the role of the particle shape on the performance of the damper has remained largely uncertain and is investigated here by means of particle-based simulations. It is found that, for large excitation amplitudes (collect-and-collide regime), particle shape nearly does not affect the damper’s performance. For low excitation amplitudes (gas-like regime), a dependence on the average dissipated energy per cycle on the particle shape is found. In this regime, the spherical particle geometry leads to the highest damper’s efficiency. |
url |
https://doi.org/10.1051/epjconf/201714006006 |
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