International Conference on Advances in Mechanical Engineering-ICAME 2009 , 2009-06-24

Title : ( Microdynamic analysis of oscillating transportation of particles )

Authors: JAVAD GOHARIAN , Hamid Ekhteraei Toussi ,

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Transportation of granular material using an oscillating plate is studied based on the results generated by Discrete Element Method (DEM). The objective is to present a numerical simulation method to model the motion of granular material consisting of a large number of particles, on a vibrated plate. The method chosen is the Lagrangian time-driven method and it uses the position, the orientation, the velocity and the angular velocity of particles as independent variables. These are obtained by time integration of the dynamics equations which were derived from the classical Newtonian mechanics approach based on the second law of Newton for the translation and rotation of each particle in the granular material. This includes keeping the track of all force and moments acting on each particle at every time-step. Particles are treated as contacting visco-elastic bodies which can deform after colliding each other. Normal and tangential components of contact forces are computed using deformation geometry, material properties and dynamics of particles. Knowing the forces and moments acting on particles in each time step, equations of particle motion solved by the Gear predictor–corrector scheme of fifth-order accuracy. Thus the positions, velocities and accelerations of particles were obtained. The simulation method is based on an object-oriented methodology and encoded by using C++ programming language.

Keywords

, Granular material; Oscillating transportation; Discrete element method; Object, oriented
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@inproceedings{paperid:1012298,
author = {GOHARIAN, JAVAD and Ekhteraei Toussi, Hamid},
title = {Microdynamic analysis of oscillating transportation of particles},
booktitle = {International Conference on Advances in Mechanical Engineering-ICAME 2009},
year = {2009},
location = {شاه عالم},
keywords = {Granular material; Oscillating transportation; Discrete element method; Object-oriented methodologies},
}

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%0 Conference Proceedings
%T Microdynamic analysis of oscillating transportation of particles
%A GOHARIAN, JAVAD
%A Ekhteraei Toussi, Hamid
%J International Conference on Advances in Mechanical Engineering-ICAME 2009
%D 2009

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