Prototype of a controllable damper based on granular materials subjected to partial vacuum

In the paper a proposal of granular damper prototype has been introduced. The granular damper works on the basis of a core made of Vacuum Packed Particles. Idea of Vacuum Packed Particles consists of placing loose granular grains into a hermetic envelope, wherein in the next stage a partial vacuum i...

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Bibliographic Details
Published in:MATEC Web of Conferences 2019, Vol.254, p.5009
Main Authors: Zalewski, Robert, Bartkowski, Piotr
Format: Article
Language:English
Subjects:
Energy dissipation
Grains
Granular materials
Prototypes
Smart Materials
Vacuum Packed Particles
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Summary:In the paper a proposal of granular damper prototype has been introduced. The granular damper works on the basis of a core made of Vacuum Packed Particles. Idea of Vacuum Packed Particles consists of placing loose granular grains into a hermetic envelope, wherein in the next stage a partial vacuum is generated. The difference between an atmospheric pressure, externally surrounding the core and internal one, causes occurring friction forces between single grains. Interacting friction forces are greater for higher values of internal underpressure. In presented paper the authors focus on analysis of experimental results obtained for various values of underpressure. Variations in energy dissipation possibilities are particularly described in this paper.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201925405009