Computer Simulation on Centrifugal Barrel Surface Finishing Based on Discrete Element Method

Abstract:

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According to the motion features of abrasive particles and workpieces in centrifugal roller, considering the abrasive particles and workpieces as two kinds of ball particles with different materials and sizes, 3-Dimensional Discrete Element Method (DEM) was used to build the dynamics model of single abrasive particles and workpieces motion. Based on such model, in this paper, the influence of rotation-revolution ratio on medium movement was mainly analyzed. Supposing filling ratio as 20%, mixing ratio as 1.5:1 and revolution speed as 180r/min, the movement procedure of medium within centrifugal roller was respectively simulated under the different cases of rotation-revolution ratio as -0.13, -1 and -2, then the velocity variation diagram and the average contact forces diagram for abrasive particles or workpieces under different rotation-revolution ratio were obtained, the simulation results are basically coincident to the experimental results. Both results have proved that rotation-revolution ratio is the main parameter that changes medium motion law, which provides a very efficient way to further optimize design parameters and process parameters, as well as to improve production efficiency.

Info:

Periodical:

Advanced Materials Research (Volumes 53-54)

Edited by:

Shengqiang Yang, Shichun Yang and Hang Gao

Pages:

45-50

DOI:

10.4028/www.scientific.net/AMR.53-54.45

Citation:

C.H. Song et al., "Computer Simulation on Centrifugal Barrel Surface Finishing Based on Discrete Element Method", Advanced Materials Research, Vols. 53-54, pp. 45-50, 2008

Online since:

July 2008

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Price:

$35.00

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