Dynamic simulation of granular system

JIANG Shi-ping; RUI Xiao-ting; HONG Jun; RONG Bao; LIU Zhi-jun

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Dynamic simulation of granular system

更新时间：2026-06-25

- Dynamic simulation of granular system
- Vol. 32, Issue 8, (2011)
- 作者机构：
  
  1. 南京理工大学发射动力学研究所,南京,210094
  2. 东南大学工程力学系,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB122
- Online First：16 August 2011，
  
  Published：2011
- 稿件说明：
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JIANG Shi-ping, RUI Xiao-ting, HONG Jun, et al. Dynamic simulation of granular system[J]. 2011, 32(8).
DOI：

JIANG Shi-ping, RUI Xiao-ting, HONG Jun, et al. Dynamic simulation of granular system[J]. 2011, 32(8). DOI：

摘要

针对多面体粒子组成的散粒体系统，基于离散单元法，建立了每个散粒体的邻居目录，在邻居目录内以射线交叉法判断散粒体间的接触，给出了散粒体系统动力学的仿真方法，有效地实现了对散粒体系统接触碰撞动力学的数值仿真。该方法具有重要的理论价值，可推广应用于众多工程领域的散粒体系统堆积、碰撞动力学仿真

Abstract

Aiming at granular system composed of polyhedral granules

based on discrete element method

the neighbor list is established for each particle. The ray crossing method is applied to the collision detection of polyhedral granules stored in the neighbor list. By these steps

the simulation method for the dynamics of granular system is proposed

which effectively realizes the numerical simulation of the dynamics of granular system. The simulation method has significant theoretical value

which can be used to simulate dynamic process of packing and collision of granular system in numerous engineering fields.

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