摘要
为了研究滚动摩擦在无底圆筒试验中的作用,利用EDEM软件对无底圆筒的试验过程进行仿真模拟,并通过仿真结果与模拟过程中颗粒角速度的分布情况,分析颗粒与颗粒之间、颗粒与地面之间以及颗粒与圆筒之间的滚动摩擦对整个成堆过程的影响。得出颗粒与颗粒之间的滚动摩擦相较于其他两者在成堆过程中作用最为明显,而颗粒与筒壁间的滚动摩擦的作用几乎没有影响,颗粒与地面之间的滚动摩擦的影响与颗粒形状有一定关系。
In order to study the influence of rolling friction in bottomless cylinder test, the paper applied EDEM software to simulate the process of the bottomless cylinder test. Through the final simulation results and the distribution of angular velocity of particles during the simulation, the influence of rolling friction among particles, between particles and the ground, between particles and the cylinder wall during pile formation was analyzed. It was found that the rolling friction among particles had more obvious influence than the other two during pile formation, while the rolling friction between particles and the cylinder wall had little influence, the influence of the rolling friction between particles and the ground was related to the shape of particles.
出处
《矿山机械》
2016年第3期74-79,共6页
Mining & Processing Equipment
基金
广西科技开发计划资助项目"土方机械作业过程综合测试平台建设"(桂科能1598021-2)
关键词
滚动摩擦
EDEM
安息角
rolling friction
EDEM
angle of repose
