Universal response of granular damping devices

Details Universal response of granular damping devices Universal response of granular damping devices

2012-01-09

arxiv.org/abs/1201.1866v1

Physics

Condensed Matter

Soft Condensed Matter

10 pages, 5 figures

Scientific paper

Granular damping devices constitute an emerging technology for the attenuation of vibrations based on the dissipative nature of particle collisions. We show that the performance of such devices is independent of the material properties of the particles for most working conditions. Even the suppression of a dissipation mode (collisional or frictional) is unable to alter the response. We explain this phenomenon in terms of the inelastic collapse of granular materials. These findings provide a crucial standpoint for the design of such devices in order to achieve the desired low maintenance feature that makes particle dampers particularly suitable to harsh environments.

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