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Experimental and numerical investigations on parameters influencing energy dissipation in particle dampers
Citation Link: https://doi.org/10.15480/882.3935
Publikationstyp
Conference Paper
Date Issued
2019-10
Sprache
English
Author(s)
Meyer, Niklas
Institut
TORE-DOI
TORE-URI
Start Page
260
End Page
271
Citation
Particles 2019 : VI International Conference on Particle-Based Methods - Fundamentals and Applications : 28-30 October, 2019 Barcelona, Spain. - Seite 260-271 (2019)
Contribution to Conference
Scopus ID
Publisher
International Centre for NumericalMethods in Engineering (CIMNE)
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
Subjects
Particle damping
Complex power
Energy dissipation
DEM
DDC Class
530: Physik
600: Technik
620: Ingenieurwissenschaften
Funding Organisations
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.
Publication version
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