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https://doi.org/10.15480/882.4764
Publisher DOI: | 10.1007/s10035-022-01290-y | Title: | Systematic design of particle dampers for transient vertical vibrations | Language: | English | Authors: | Meyer, Niklas ![]() Seifried, Robert ![]() |
Keywords: | Particle damper; Design toolchain; Vertical vibrations; Granular material; DEM; Complex power | Issue Date: | 2-Dec-2022 | Publisher: | Springer | Source: | Granular Matter 25 (1): 3 (2023) | Abstract (english): | A multilevel design toolchain is used for the development of particle dampers for vertical transient vibrating structures. Thereby various experimental tests and numerical models are combined. The design toolchain consists of three levels. The frst level deals with the micro-mechanical behavior of single particle–particle and particle–wall impacts. The resulting coeffcient of restitution is then used on the second level. Within, the second level the properties of vertical vibrated granular matters inside a container under harmonic motion are analyzed. The resulting motion modes and energy dissipation of the granular matter strongly depend on the excitation conditions, i. e. the excitation amplitude and excitation frequency. Multiple analytical formulations for the diferent motion modes, i. e. solid-like state and collect-and-collide motion mode, are derived to describe the energy dissipation within the particle damper. These analytical descriptions are in good agreement with numerical discrete element simulations. Finally, the third level of the design toolchain deals with designing a damper for a desired structure. The analytical formulations describing the energy dissipation within the particle damper are used to optimize a particle damper confguration for a simple beam-like structure undergoing a vertical transient vibration. The efciency of the optimized particle damper dissipation is proven experimentally. |
URI: | http://hdl.handle.net/11420/14247 | DOI: | 10.15480/882.4764 | ISSN: | 1434-7636 | Journal: | Granular matter | Institute: | Mechanik und Meerestechnik M-13 | Document Type: | Article | Project: | Projekt DEAL | Funded by: | Deutsche Forschungsgemeinschaft (DFG) | License: | ![]() |
Appears in Collections: | Publications with fulltext |
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Meyer - Systematic design of particle dampers for transient vertical vibrations.pdf | 2,41 MB | Adobe PDF | View/Open![]() |
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