ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
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 differentmaterials and sizes, 3-Dimensional Discrete Element Method (DEM) was used to build the dynamicsmodel of single abrasive particles and workpieces motion. Based on such model, in this paper, theinfluence of rotation-revolution ratio on medium movement was mainly analyzed. Supposing fillingratio as 20%, mixing ratio as 1.5:1 and revolution speed as 180r/min, the movement procedure ofmedium within centrifugal roller was respectively simulated under the different cases ofrotation-revolution ratio as -0.13, -1 and -2, then the velocity variation diagram and the averagecontact forces diagram for abrasive particles or workpieces under different rotation-revolution ratiowere obtained, the simulation results are basically coincident to the experimental results. Both resultshave 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, aswell as to improve production efficiency
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.53-54.45.pdf
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