Title :
Discrete Element Method Simulation of Impact-Based Measurement of Grain Mass Flow
Author :
Guowei, Jiang ; Baijing, Qiu
Author_Institution :
Inst. of Agric. Eng., Jiangsu Univ., Zhenjiang, China
Abstract :
Discrete element method based soft-sphere model is used to simulate the impact action between the rice particles flow and the impact-board. The characteristic of contact force between them, the relationship between the mass of rice particles and the normal contact force of the impact-board, and an effect of retention stage on the measurement of the mass of rice are studied when belt speed is 0.5 m/s and 1.0 m/s. The simulation result show that, the normal contact force between rice particles flow and impact-board increase evidently when the belt speed jump from 0.5 m/s to 1.0 m/s, but the tangential force not; the linear relationship between the rice´s mass and the normal contact force of the impact-board is good when the rice´s mass from 0.18 to 0.54 kg; retention stage have a bad effect on the measurement.
Keywords :
agricultural products; agriculture; digital simulation; flow measurement; granular flow; impact (mechanical); mass transfer; mechanical contact; mechanical engineering computing; numerical analysis; belt speed; contact force; discrete element method simulation; grain mass flow; impact-based measurement; impact-board; mass 0.18 kg to 0.54 kg; retention stage; rice particles flow; soft-sphere model; tangential force; velocity 0.5 m/s to 1.0 m/s; Atmospheric measurements; Belts; Force; Force measurement; Numerical models; Particle measurements; Solid modeling; Discrete element method; contact force; mass flow; simulation;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-61284-278-3
Electronic_ISBN :
978-0-7695-4350-5
DOI :
10.1109/CDCIEM.2011.372
