An equivalent model of horizontal vibratory finishing process: Model construction and analysis based on similarity theory

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2024-10-15 DOI:10.1016/j.powtec.2024.120362

Xuejie Wen , Wenhui Li , Xiuhong Li , Haizhu Wang , Liaoyuan Zhang , Shengqiang Yang

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引用次数: 0

Abstract

The manufacturing cost of parts and experimental equipment seriously limits the development of experimental research on mass finishing. To tackle this issue, an equivalent model construction method was proposed based on similarity theory. First, the similarity criterion of relevant physical quantities in horizontal vibratory finishing was determined, and the calculation formula of the distortion coefficient was derived to correct the prediction results. Second, the effects of vibration parameters on the characteristics and similarities of particle velocity and normal force were analyzed by DEM simulation. Finally, the validity of the equivalent model was proved by PIV and force tests. The results show that the equivalent model can be used to reflect the variation of the actual model and anticipate the particle velocity and normal force. And the prediction accuracy can reach 99.56 % and 97.46 %, respectively. The research results provide a new efficient and low-cost method for researching the mass finishing process.

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水平振动光饰工艺的等效模型：基于相似性理论的模型构建与分析

零件和实验设备的制造成本严重限制了大规模精加工实验研究的发展。针对这一问题，提出了基于相似性理论的等效模型构建方法。首先，确定了水平振动光饰中相关物理量的相似性准则，并推导出变形系数的计算公式，对预测结果进行修正。其次，通过 DEM 仿真分析了振动参数对颗粒速度和法向力的特征和相似性的影响。最后，通过 PIV 和力试验证明了等效模型的有效性。结果表明，等效模型可用于反映实际模型的变化并预测颗粒速度和法向力。预测精度分别达到 99.56 % 和 97.46 %。该研究成果为研究大规模精加工工艺提供了一种高效、低成本的新方法。

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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.