Sorting particles in the air using direct and inverse Chladni patterns of a vibrating plate

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-03-13 DOI:10.1016/j.powtec.2025.120867

Valentin Bourrud , Eloi Perez Compte , Maxime Lanoy , Olivier Robin

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引用次数: 0

Abstract

The combination of direct and inverse Chladni patterns to sort particles or control their motion was primarily studied in liquids through theoretical and numerical studies. The few proposed experimental demonstrations relied on micrometric or millimetric-scale vibrating systems. This work describes a proof of concept for sorting particles in the air using direct and inverse Chladni patterns of a vibrating plate at the decimetric scale. The plate has well-defined modal shapes and resonance frequencies thanks to controlled simply-supported boundary conditions. Sorting possibilities are evaluated using three materials of different densities and types (table salt, lycopodium powder, and iced tea dry mix). Our experimental results confirm numerical results from the literature and indicate that particles can be sorted according to their density or size using direct and inverse Chladni patterns. Finally, perspectives on applications and domains for this prototype aimed at vibrosorting particles are briefly discussed, and directions for future works are suggested.

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利用振动板的直接和反向 Chladni 模式对空气中的颗粒进行分类

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.