Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.4860
Publisher DOI: 10.1007/s10035-022-01298-4
Title: Design of robust particle dampers using inner structures and coated container walls
Language: English
Authors: Meyer, Niklas  
Seifried, Robert  
Keywords: Particle damper; Inner structures; Coated container walls; DEM; Design guidelines
Issue Date: 16-Jan-2023
Publisher: Springer
Source: Granular Matter 25 (1): Art.-Nr. 10 (2023)
Abstract (english): 
Classical particle dampers suffer from their non-robust damping behavior, \ie they can only be efficiently applied to a specific frequency range and amplitude range. The reason for that is that particle motion, also called motion mode, and damper efficiency show a strong correlation. By changing particle or container properties the motion modes are shifted to other excitation conditions but their efficient range is not much affected. To increase the damping performance and robustness of particle dampers, two approaches are presented here by introducing new motion modes. Therefore, the particle dampers are analyzed experimentally using a shaker setup and numerically using the discrete element method.
The first design approach uses inner structures inside the particle damper, manufactured by a 3D printer. The inner structures consist of different numbers of beams, placed perpendicular to the container moving direction. They lead to a much more robust damper as the transition between the motion modes gets smoother. For the second approach, the container walls are equipped with different soft polymers. In this way a new motion mode at low excitation intensities is observed, leading to a high efficiency possibly on a large excitation intensity range. For an easy calculation of the necessary wall's Young's modulus an analytical formula based on Hertz impact theory is derived.
URI: http://hdl.handle.net/11420/14575
DOI: 10.15480/882.4860
ISSN: 1434-7636
Journal: Granular matter 
Institute: Mechanik und Meerestechnik M-13 
Document Type: Article
Project: Projekt DEAL 
Peer Reviewed: Yes
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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