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Title: Experimental and numerical investigations on parameters influencing energy dissipation in particle dampers
Language: English
Authors: Meyer, Niklas  
Seifried, Robert  
Keywords: Particle damping; Complex power; Energy dissipation; DEM
Issue Date: Oct-2019
Publisher: International Centre for NumericalMethods in Engineering (CIMNE)
Source: Particles 2019 : VI International Conference on Particle-Based Methods - Fundamentals and Applications : 28-30 October, 2019 Barcelona, Spain. - Seite 260-271 (2019)
Abstract (english): 
Particle damping has become a favorable passive damping technique for light weight structures, however, its complex dimensioning process hinder its wide use in technical applications. An experimental based model and a numerical model are developed in order to investigate the energy dissipation of the dampers regardless of the underlying structure. The experimental model consists only of the particle box with a free-free boundary condition, which is excited by a harmonie force. Via the complex power, the loss factor and the energy dissipation are obtained. A corresponding numerical discrete element model is developed. With these models, a large frequency and acceleration range is analyzed. Different filling ratios of the particle box are investigated, indicating the high potential of particle dampers for ditterent excitation ranges. First comparisons of experiments and simulations showing a good qualitative agreement, enabling the simulation as a future design tool for particle dampers
Conference: VI International Conference on Particle-Based Methods 2019 
DOI: 10.15480/882.3935
ISBN: 978-84-121101-1-1
Institute: Mechanik und Meerestechnik M-13 
Document Type: Chapter/Article (Proceedings)
Project: Simulatinsbasierter Entwurf passiver Schwingungsdämpfung mittels verteilter Partikeldämper mit Anwendung auf aktive flexible Mehrkörpersysteme 
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
More Funding information: The authors would also like to thank the German Research Foundation (DFG) for their financial support of the project SE1685/5-1.
License: In Copyright In Copyright
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