[1]陈凯凯,安东,彭骏骏,等.DEM-FEM耦合仿真中载荷转换方法研究[J].起重运输机械,2019,(02):62-65.
 Method of Loadings Transformation in the DEM-FEM Co-Simulation[J].,2019,(02):62-65.
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DEM-FEM耦合仿真中载荷转换方法研究()
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《起重运输机械》[ISSN:1001-0785/CN:11-1888/TN]

卷:
期数:
2019年02期
页码:
62-65
栏目:
分析研究
出版日期:
2019-02-28

文章信息/Info

Title:
Method of Loadings Transformation in the DEM-FEM Co-Simulation
文章编号:
1001-0785(2019)
作者:
陈凯凯安东彭骏骏叶方平
1 中交第四航务工程勘察设计院有限公司 ?2武汉理工大学物流工程学院
关键词:
font-size: 9pt">离散元有限元圣维南原理等效
分类号:
O241.82
文献标志码:
A
摘要:
在离散元-有限元单向耦合中,需要将离散元仿真获得的颗粒载荷转换至有限元模型中。基于圣维南原理给出了一种转换算法,通过假定压力呈线性分布,实现了将颗粒接触力等效转变为渐变压力施加到有限元模型上,并与离散元软件自带的加载方法进行了对比分析。结果表明:渐变载荷加载方法可以合理地反映颗粒载荷的分布情况,并能兼顾整体受力与实际情况一致。
Abstract:
In the unidirectional coupling of the discrete element method finite element method, it is necessary to convert the particle load obtained from the discrete element simulation to the finite element model. Based on the Saint Venant principle, a conversion algorithm is given. By assuming that the pressure is linearly distributed, the equivalent transformation of the particle contact force to the gradient pressure is applied to the finite element model. And the method is compared with the discrete element software plug-in. The results show that, using the method of load conversion proposed in this paper can effectively reflect the distribution of the particle load. It can also give consideration to the overall force the actual situation, the relative error is0.05.

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备注/Memo

备注/Memo:
收稿日期:2018-06-11
更新日期/Last Update: 2019-04-08
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