期刊论文

中文

粮食与饲料工业

1003-6202

2015

3

1-4

10.7633/j.issn.1003-6202.2015.03.001

2013年的粮食公益性行业科研专项“粮食加工关键主机的数字化设计技术研究”（项目编号:201313012-08）；

本校为第一机构

碾白是谷物加工中重要的加工工序,为了研究该过程中糙米的破碎率,基于离散元方法,以EDEM软件为平台,对糙米碾白进行离散元仿真。仿真糙米颗粒破碎,通过离散单元法的Hertz-Mindlin黏结模型,用＂黏结键＂将更小的球形颗粒黏结在一起,当颗粒受力达到其破碎强度时,＂黏结键＂断裂,从而可以有效模拟糙米的破碎。通过对糙米碾白仿真,得出糙米的动力属性和破碎率都较符合实际情况。

Whitening is one of the important processes in grain processing.In order to study brown rice breakage rate,we carried out discrete element simulation of brown rice whitening based on discrete element method and EDEM software platform.In simulation of brown rice particles breaking,by the Hertz-Mindlin bond model of discrete element method, ＂ bond key＂ was used to bond the smaller spherical particles together,When the particle stress reached its breaking strength, ＂ bond key＂ will be cracked,which can simulate effectively brown rice breaking....