• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems >Packing of different shaped tetrahedral particles: DEM simulation and experimental study
【24h】

Packing of different shaped tetrahedral particles: DEM simulation and experimental study

机译：不同形状四面体颗粒的包装：DEM仿真与实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Packings of different mono-sized tetrahedral particles under 3D vibrations were studied by physical experiments and DEM simulations. The effects of vibration conditions and particle shape on the packing densification were comprehensively investigated and optimized. Corresponding characteristic microscopic properties such as coordination number (CN), particle contact type, radial distribution function (RDF), and particle orientations were numerically characterized and analyzed. The results show that the DEM model can be well validated by physical experiments. Microscopic analysis indicates that the minimum mean CN appears for tetrahedral particles with regular shape. The RDF shows that as the shape deviates from regular tetrahedral particles, the frequency of face-face, vertex-face and edge-edge contacts all decreases while that of edge-face contact increases. The cluster evolutions demonstrate that the reduction or disappearance of two important local clusters (dimer and wagon wheel structures) is one of the main reasons for the decrease of packing density of irregular tetrahedral particles. (C) 2019 Elsevier B.V. All rights reserved.
机译：通过物理实验和DEM仿真研究了3D振动下不同单尺寸四面体颗粒的填充。振动条件和颗粒形状对填料致密化的影响得到了全面的研究和优化。数值表征和分析了相应的特征性微观性质，例如协调数（CN），粒子接触型，径向分布函数（RDF）和粒子取向。结果表明，DEM模型可以通过物理实验良好验证。微观分析表明，具有规则形状的四面体颗粒出现最小平均CN。 RDF表明，随着形状偏离常规四面体颗粒，面部面部，顶面和边缘触点的频率均降低，而边缘面接触的增加增加。集群变化表明，两个重要的局部簇（二聚体和马车车轮结构）的减少或消失是不规则四面体颗粒的填充密度降低的主要原因之一。 （c）2019年Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号