散粒物料堆积角离散元仿真研究  

Discrete element simulation study on pile angle of bulk material

作　　者：夏鹏[1] 李郁[1] 杨公波[1] 

机构地区：[1]武汉理工大学,武汉430063

出　　处：《起重运输机械》2015年第2期107-110,共4页Hoisting and Conveying Machinery

摘　　要：由于EDEM离散元仿真软件基于理论上的接触力学模型,以致在模拟散粒物料实际流动特性的过程中,仿真结果与实际结果不一致。堆积角可以反映物料的流动特性,文中以堆积角作为参考指标,采用正交实验法对煤粉堆积角仿真参数进行校准,以减小煤粉流动特性仿真与实际的偏差。仿真结果表明,采用校准参数后,堆积角仿真结果更接近于实际,煤粉流动特性仿真结果更真实。Since EDEM discrete element simulation software is based on theoretic contact mechanical model, the sim- ulation result is inconsistent with the actual one when the software is simulating the actual flow characteristics of the bulk materials. The pile angle can reflect flow characteristics of the material, which is taken as the reference index in the paper to adjust the simulation parameter of the coal powder pile angle With the orthogonal experiment method, in order to mini- mize the deviation of the simulation result of the coal powder flow characteristics from the actual one. The simulation result shows that after parameter adjustment, the simulation result of the pile angle and coal powder flow characteristic is close to the actual ones.

关 键 词：离散元 散粒物料 流动特性 堆积角 正交实验法 

分 类 号：TD58[矿业工程—矿山机电] TP391.9[自动化与计算机技术—计算机应用技术]