Frequency–amplitude behavior in the incipient movement of grains under vibration

Aracena, Karina A. Valenzuela; Benito, Jesica Gisele; Oger, Luc; Ippolito, I.; Uñac, Rodolfo Omar; Vidales, Ana María

doi:10.1016/j.partic.2017.11.009

Cited by 10 publications

(9 citation statements)

References 33 publications

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“…The exponential behavior found here is in agreement with the one reported in [13] and the range of values for the frequencies is again quite lower than that derived from the elastic properties of the materials involved [1,2].…”

Section: Experimental Set Up and Proceduressupporting

confidence: 90%

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Resuspension due to vertical oscillations: experiments and numerical modeling

et al. 2019

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Granular matter is present everywhere in our practical lives. In particular, the movement initiation due to an external excitation, like vibration, is responsible of the detachment of particles that can then be put in an air stream or be part of a pollution process with undesirable consequences. In those scenarios, the knowledge of the mechanisms for the initiation of particle movement is crucial to predict the removal probabilities. This paper focuses on the onset of the movement of particles placed on a horizontal surface subjected to a vertical sinusoidal mechanical vibration. The problem is tracked both experimentally and

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Section: Experimental Set Up and Proceduressupporting

confidence: 90%

“…In a previous work [13], it has been shown that the critical frequencies needed to destabilize a particle on a vertically vibrated surface decay exponentially with the amplitude of the oscillation and that the frequencies were much lower than those related to the elastic properties of the material constituting the particles.…”

Section: Introductionmentioning

confidence: 95%

Resuspension due to vertical oscillations: experiments and numerical modeling

et al. 2019

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“…On the other hand, authors found that the stiffness of a spherical particle is not constant but increases with particle deformation [14]. Here, the critical acceleration for detachment decreases as A increases [55], so does the deformation of the particle. Thus, it is expected that k (so  0 ) decreases with A.…”

Section: Theoretical Approachmentioning

confidence: 93%

“…In this section, the main findings for the movement initiation of individual particles placed on a horizontal rough surface subject to a vertical sinusoidal vibration are presented as a result of a series of experiments, theoretical analysis, and numerical simulations performed in our work group in the last years [55,56]. The aim here is to determine the critical frequencyamplitude values of the vibration necessary to start the movement of at least half of the particles on the surface.…”

Section: Destabilization Of Grains By Vibrationmentioning

confidence: 99%

“…In this Section the theoretical approach developed to explain the exponential-type behaviour found in the experiments will be briefly presented. The detailed procedure can be found in [55]. The model is based on the picture of a particle attached to a vibrating surface through a spring representing the effective interactions between particle and surface, arising from inter-molecular and capillary forces, which act (when combined) like an elastic bond or spring with stiffness k [14].…”

Section: Theoretical Approachmentioning

confidence: 99%

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Resuspension processes in a wide range of particle sizes

et al. 2021

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Particulate matter offers a broad spectrum of phenomena, well known in the granular matter community. This fact is not only related to the individual or collective behaviour that grains can present depending on the external boundary conditions and/or internal interactions but, to the wide range of particle sizes. This feature confers the possibility of studying a particular phenomenon in different size scales. The main goal of this paper is to describe the detachment of particles from surfaces, where particles go from tens of microns to several millimetres, in a variety of scenarios. All the studied systems presented here have in common the need to determine the critical conditions to lose the equilibrium balance, initiating incipient motion. Solving the right time moment for particle resuspension, consideration of the local interactions between particle, surface and external applied forces can be achieved from different modelling approaches, from deterministic dynamics to statistical mechanics. This paper focuses on some of these approaches performed recently on grains through different size scales.

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On the dynamics of a liquid bridge between a sphere and a vertically vibrated solid surface

et al. 2023

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This work presents an experimental study of the response of a liquid bridge formed between a sphere and a plane solid surface subjected to a vertical sinusoidal vibration. The amplitude and frequency of the oscillations can be varied. The successive movement of the particle along with the bridge deformation is registered to follow the dynamics of the system. The motivation is to figure out how capillary and viscosity forces can be modeled with the help of the experimental data obtained and to settle down a simplified theoretical approach capable of being implemented in the description of many phenomena involving wet granular grains. The results indicate that the viscosity effects can be neglected as soon as the amplitude of the movement is not too small, still obtaining a reasonable description of the dynamical behavior of the sphere/liquid-bridge system.

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Frequency–amplitude behavior in the incipient movement of grains under vibration

Cited by 10 publications

References 33 publications

Resuspension due to vertical oscillations: experiments and numerical modeling

Resuspension due to vertical oscillations: experiments and numerical modeling

Resuspension processes in a wide range of particle sizes

On the dynamics of a liquid bridge between a sphere and a vertically vibrated solid surface

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