Abstract
This paper studies the distribution of compressive force in vibrating particle beds using numerical simulation. The distinct element method (DEM) is employed to simulate convective flow in the bed. Elliptic particles are fed into a 2-dimensional container, and the container is vibrated vertically. The packing fractions of beds and the compressive force exerting on particles are calculated. The shapes of container and particles as well as the vibratory intensity are parametrically varied in the simulations. As a result, it is found that (1) the compressive force is highest during a cycle of vibration when the container is moving upward, (2) the slant angle of side wall of container determines the distribution of compressive force, and (3) the characteristics of convective flow is strongly related to the distribution of compressive force.
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