【摘要】 为研究圆筒中颗粒堆内部的应力分布,将颗粒堆简化为规则的二维圆盘堆积模型.对圆盘堆积中力的传递进行分析后给出了圆盘堆积中力的传递规律,利用计算机模拟了圆盘对容器底部的压力,发现底部压力随圆盘层数增加会达到饱和,并将二维圆盘堆积的规律推广到三维颗粒堆,从理论上推导出容器底部平均压强p与颗粒填充高度Z的关系.更多还原

【Abstract】 A model of planar disc pile is applied to complicated granular matters.We analyze force transfer in the disc pile.Numerical simulation shows that the pressure on the cylinder bottom saturates with increasing height of granules.The rule of the planar disc pile is extended to three-dimensional granules and the relation between the height Z of granules and the average pressure p on cylinder bottom is obtained.更多还原