Experimental and numerical investigations of dissipation mechanisms in particle dampers

M Masmoudi, S Job, MS Abbes, I Tawfiq, M Haddar - Granular Matter, 2016 - Springer
Particle dampers are passive devices allowing strong dam** of structures vibrating in
harsh environment. We investigate the energy dissipation in a rigid enclosure attached to a …

Granular dampers: does particle shape matter?

H Pourtavakoli, EJR Parteli, T Pöschel - New Journal of Physics, 2016 - iopscience.iop.org
By means of particle-based numerical simulations using the discrete element method, we
address the question of how the performance of granular dampers is affected by the shape …

Granular dampers in microgravity: sharp transition between modes of operation

A Sack, K Windows-Yule, M Heckel, D Werner… - Granular Matter, 2020 - Springer
When a container filled with granular material is subjected to sinusoidal vibration in
microgravity, dependent on the amplitude of the oscillation, the granulate may exhibit one of …

[HTML][HTML] Influence of cavity partition on the dam** performance of additively manufactured particle dampers

H Guo, R Yoneoka, A Takezawa - Powder Technology, 2024 - Elsevier
Additively manufactured particle dampers (AMPDs) are innovative particle dampers created
by intentionally preserving unfused powder within a structure during laser powder bed …

Granular binary mixtures improve energy dissipation efficiency of granular dampers

NR Varela-Rosales, A Santarossa, M Engel, T Pöschel - Granular Matter, 2023 - Springer
Granular dampers are systems used to attenuate undesired vibrations produced by
mechanical devices. They consist of cavities filled by granular particles. In this work, we …

Systematic design of particle dampers for transient vertical vibrations

N Meyer, R Seifried - Granular matter, 2023 - Springer
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 …

Sound reduction at a target point inside an enclosed cavity using particle dampers

L Hu, Y Shi, Q Yang, G Song - Journal of Sound and Vibration, 2016 - Elsevier
The purpose of this paper is to develop a novel structural dam** approach to reduce the
sound pressure at a target point inside an enclosed cavity. In this approach, particle …

Gravity governs shear localization in confined dense granular flows

MR Shaebani, J Török, M Maleki, M Madani… - Physical Review Letters, 2021 - APS
The prediction of flow profiles of slowly sheared granular materials is a major geophysical
and industrial challenge. Understanding the role of gravity is particularly important for future …

Granular Leidenfrost effect in microgravity

H Torres Menéndez, A Sack, T Pöschel - Granular Matter, 2020 - Springer
When a container filled with granular material is subjected to vertical vibration in the
presence of gravity, under certain conditions a non-monotonous density profile can be …

Absence of subharmonic response in vibrated granular systems under microgravity conditions

JE Kollmer, M Tupy, M Heckel, A Sack, T Pöschel - Physical Review Applied, 2015 - APS
By means of experiments in microgravity conditions, we show that granular systems
subjected to sinusoidal vibrations respond either by harmonic or gaslike dynamics …