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首页> 外文期刊>International Journal of Mechanical Engineering and Applications >Study on the Influence of Geometric Shape of Material on the Reposed Angle Based on EDEM
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Study on the Influence of Geometric Shape of Material on the Reposed Angle Based on EDEM

机译：基于EDEM的材料几何形状对摆角的影响研究。

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摘要

When studying the discreteness of granular materials, the size of the angle of repose can be used as an important parameter to study the stability of granular materials. In recent years, many scholars have studied the morphology of particles, but they are basically based on the regular shape of spheres and ellipsoids, which are very different from the actual particle shape, which leads to the measurement results not consistent with the actual results. Therefore, based on the above reasons, this paper mainly studied the influence of geometric shape for the Reposed Angle, the simulation experiment is carried for the Reposed Angle using the discrete element software EDEM, the Reposed Angle is measured for five different shape using slice cutting analysis method, and the experimental measurement has carried on for the Reposed Angle for each shape, SPC method is used to determine the reliability of the data. The results show that the size of the Reposed Angle increases gradually in the order of sheet, intermediate, horn, strip and equal square among the five studied shape, the mechanism is that the greater the number of internal contact is, can truly reflect the interaction and occlusal relationship, the more easily locked the particles are in the force chain, the more difficult to separate the particles are, the more stable the accumulation characteristics are.
机译：当研究粒状材料的离散性时，休止角的大小可以用作研究粒状材料稳定性的重要参数。近年来，许多学者研究了粒子的形态，但它们基本上是基于球形和椭圆形的规则形状，这与实际的粒子形状有很大的不同，从而导致测量结果与实际结果不一致。因此，基于上述原因，本文主要研究了几何形状对摆角的影响，利用离散元软件EDEM对摆角进行了仿真实验，采用切片切割法对五个不同形状的摆角进行了测量。分析方法，并针对每种形状进行了相对角度的实验测量，使用SPC方法确定数据的可靠性。结果表明，所研究的五种形状中，“休止角”的大小以片状，中间状，角状，条状和等角方形的顺序逐渐增大，其机理是内部接触的数量越多，能真实反映相互作用。和咬合关系，粒子在力链中越容易锁定，粒子越难分离，积累特性就越稳定。

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