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颗粒物质中压力随高度的变化规律
Law of pressure changing with height in granular materials
【摘要】 用实验方法研究了圆筒容器中静止沙堆内重力的分布及变化规律 .直接测量了颗粒物质的摩擦力 ,给出摩擦力与颗粒填充密度的关系 ,摩擦力与颗粒堆积高度的关系 ,并分析讨论了相关因素 .
【Abstract】 The distribution and changing laws of gravity in static granular pile in the cylinder were studied by experiments. The friction force of granular materials was measured. The paper also gave the relations between friction force and granular density, friction force and granular pile height, and discussed the related factors.
【关键词】 颗粒物质;
摩擦力;
颗粒堆密度;
颗粒堆高度;
【Key words】 granular materials; friction force; granular pile density; granular pile height;
【Key words】 granular materials; friction force; granular pile density; granular pile height;
【基金】 国家自然科学基金 (19872 0 2 1)资助项目 ;贵州省科委基金 (2 0 0 130 2 4 );贵州省教委基金 (2 0 0 10 0 2 )资助项目
- 【文献出处】 物理实验 ,Physics Experimentation , 编辑部邮箱 ,2002年11期
- 【分类号】O347.7
- 【被引频次】28
- 【下载频次】468