Research on rotational resistance in particle motion simulation based on discrete element method
Year: 2024
Type: article
Abstract: In this paper, the effect of rotational resistance on particle motion in discrete element method is studied. In the discrete element method, the interaction between particles is simulated by point contact, and the mechanical constitutive model of contact action is established by a set of normal and tangential springs and dampers for each contact point. However, in the process of contact between particles, there are not only the normal and tangential forces that affect the relative translation of particles, but also the torque effect that affects the mutual rotation of particles. In this paper, the effect of rotating resistance on particle motion is studied by adding rotating spring and rotating damper to the contact point model. The rolling process of a single sphere and the formation process of a three-dimensional particle pile under certain conditions are simulated, and some results are obtained which are different from those without considering the rotation resistance. These results have some guiding significance for the motion behavior of granular materials in nature and engineering.
Author: Fulin Wang
Institution: Beijing Forestry University
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4392394303