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Relaxation of a spring with an attached granular damper

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Logo of Institute of Physics (IOP)Institute of Physics (IOP)
Logo of Deutsche Physikalische Gesellschaft (DPG)Deutsche Physikalische Gesellschaft (DPG)
 Kollmer, Jonathan E. Sack, Achim Heckel, Michael Pöschel, Thorsten

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Relaxation of a spring with an attached granular damper
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CC Attribution 3.0 Unported:
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Abstract
The oscillation of a spring may be attenuated by means of a granular damper. In difference to viscous dampers, the amplitude decays nearly linearly in time up to a finite value, from there on it decays much slower. We quantitatively explain the linear decay, which was a long-standing question.