Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Pugnaloni Luis A."'
Publikováno v:
EPJ Web of Conferences, Vol 249, p 00001 (2021)
Granular matter, particulate matter and granular materials are generic terms to refer to systems composed of many macroscopic bodies (grains or particles) where the contact interaction (which is non-conservative) plays a crucial role in the behavior
Externí odkaz:
https://doaj.org/article/e447046e9f584e89986e433197b5bba5
Publikováno v:
EPJ Web of Conferences, Vol 249, p 15003 (2021)
Granular dampers are passive devices used to attenuate mechanical vibrations. The most common configuration consists in an enclosure, partiallyfilled with particles, attached to the vibrating structure that needs to be damped. The energy is dissipate
Externí odkaz:
https://doaj.org/article/c3dfb98425a443fd81d00071b1bed329
The flow of granular materials through constricted openings is important in many natural and industrial processes. These complex flows - featuring dense, dissipative flow in the bulk but low-dissipation, low density outpouring in the vicinity of the
Externí odkaz:
http://arxiv.org/abs/2210.05732
Publikováno v:
EPJ Web of Conferences, Vol 140, p 06009 (2017)
We present discrete element method simulations of the discharge of silos in two dimensions. We study the effect of the grain shape on the clogging of small apertures, considering regular polygons and disks of equal mass. In particular, we analyze the
Externí odkaz:
https://doaj.org/article/3890649b827f46c3aed2758e6a0876a3
Publikováno v:
EPJ Web of Conferences, Vol 140, p 03041 (2017)
We present a differential equation for the flow rate of granular materials during the discharge of a silo. This is based in the energy balance of the variable mass system in contrast with the traditional derivations based on heuristic postulates such
Externí odkaz:
https://doaj.org/article/12dd5f330dd84544b01587026fd1c844
Autor:
Carlevaro, C. Manuel, Kuperman, Marcelo N, Bouzat, Sebastián, Pugnaloni, Luis A, Madrid, Marcos A
The flow of grains through narrow apertures posses an extraordinary challenge: clogging. Strategies to alleviate the effect of clogging, such as the use of external vibration, are always part of the design of machinery for the handling of bulk materi
Externí odkaz:
http://arxiv.org/abs/2106.14864
Autor:
Madrid, Marcos A., Carlevaro, C. Manuel, Pugnaloni, Luis A., Kuperman, Marcelo, Bouzat, Sebastián
Publikováno v:
Phys. Rev. E 103, 030901 (2021)
We analyze the flow and clogging of circular grains passing through a small aperture under vibration in two dimensions. Via Discrete Element Method simulations, we show that when grains smaller than the original ones are introduced in the system as a
Externí odkaz:
http://arxiv.org/abs/2103.05420
Autor:
Basak, Rituparna, Carlevaro, C. Manuel, Kozlowski, Ryan, Cheng, Chao, Pugnaloni, Luis A., Kramar, Miroslav, Zheng, Hu, Socolar, Joshua E. S., Kondic, Lou
The interactions between particles in particulate systems are organized in `force networks', mesoscale features that bridge between the particle scale and the scale of the system as a whole. While such networks are known to be crucial in determining
Externí odkaz:
http://arxiv.org/abs/2102.12396
A granular gripper is a device used to hold objects by taking advantage of the phenomenon of Reynold's dilatancy. A membrane containing a granular sample is allowed to deform around the object to be held and then vacuum is used to jam the granular ma
Externí odkaz:
http://arxiv.org/abs/2010.14992
We study, via DEM simulations, the apparent mass $m$ and loss factor $\eta$ of particle dampers (PD) attached to a vertically driven, single degree of freedom mechanical system. Although many studies focus on $\eta$, less work has been devoted to $m$
Externí odkaz:
http://arxiv.org/abs/2007.07961