Numerical investigation on dynamic response of the screen mesh in vibrating screening through DEM-FEM co-simulation--颗粒学报PARTICUOLOGY

Zhang, H., Zheng, X., & Jing, W. (2024). Numerical investigation on dynamic response of the screen mesh in vibrating screening through DEM-FEM co-simulation. Particuology, 87, 205-217. https://doi.org/10.1016/j.partic.2023.08.013

Numerical investigation on dynamic response of the screen mesh in vibrating screening through DEM-FEM co-simulation

Huan Zhang ^{a b}, Xiao Zheng ^{a b}, Weimin Jing ^c *

a Key Laboratory of Metallurgical Equipment and Control Technology, Ministry of Education, Wuhan University of Science and Technology, Wuhan, 430081, China
b Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
c College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing, 400044, China

10.1016/j.partic.2023.08.013

Volume 87, April 2024, Pages 205-217

Received 9 January 2023, Revised 26 June 2023, Accepted 21 August 2023, Available online 7 September 2023, Version of Record 12 September 2023.

E-mail: jingwm0511@163.com; 20220701062@cqu.edu.cn

Highlights

• Built a linear vibrating screen mesh dynamic response model with uncoupled DEM-FEM.

• Built the relation between screening parameters and impact load, sustained stress.

• Explored the screen mesh response evolution with particle impact and plugging.

• Revealed the effect of screening parameters on screen mesh local vibration.

Abstract

Dynamic response of the screen mesh is of great significance in the optimum vibrating screen design. In this paper, based on the DEM-FEM co-simulation method, the effect of screening parameters on the dynamic response of the screen mesh is explored and the mechanism is revealed on the particle level. Firstly, a virtual experiment on a linear vibrating screen was carried out to analyze the screening parameters’ effect with both impact load and sustained stress inflicted on the screen mesh. Then, the time-domain evolution regularity of the screen mesh LVA (Local Vibration Amplitude) under different particle plugging conditions was investigated based on the co-simulation. Finally, the influence of screening parameters on LVA and its distribution was discussed. The results show that the screening parameters can greatly affect the screen mesh LVA and its distribution by changing the movement of the granular material and the particle penetration probability, which provides an important basis for the optimal design of the screen mesh and its supporting structure.

Graphical abstract

Keywords

Vibrating screen; Dynamic response; DEM-FEM; Screening parameters; Local vibration amplitude

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