期刊论文

Measurement of Contact Parameters and Discrete Element Simulation Calibration of Rice Bran and Broken Rice

中文

中国农业科技导报

1008-0864

2024

26

2

127-136

10.13304/j.nykjdb.2022.0835

湖北省重点研发计划项目(2022BBA0047) 2021年湖北省揭榜制粮食科技项目(鄂粮函[2021]18号) 2022年湖北省揭榜制粮食科技计划项目(鄂粮函[2022]21号)。

本校为第一机构

为确定米糠和碎米分离装备离散元仿真所需的接触参数,利用台架试验与仿真试验对米糠、碎米颗粒接触参数进行测量和标定。分别采用自由落体碰撞法、碰撞扩散法、斜面滑动法和斜面滚动法标定了碎米与亚克力间的碰撞恢复系数为0.45、静摩...展开更多 为确定米糠和碎米分离装备离散元仿真所需的接触参数,利用台架试验与仿真试验对米糠、碎米颗粒接触参数进行测量和标定。分别采用自由落体碰撞法、碰撞扩散法、斜面滑动法和斜面滚动法标定了碎米与亚克力间的碰撞恢复系数为0.45、静摩擦系数为0.38、滚动摩擦系数为0.17,米糠与亚克力间的碰撞恢复系数为0.15,静摩擦系数为0.76。基于休止角测量试验,结合...

In order to determine the contact parameters required for the discrete element simulation of rice bran and broken rice separation equipment,the contact parameters of rice bran and broken rice particles were measured and calibrated through bench test and simulation test....MORE In order to determine the contact parameters required for the discrete element simulation of rice bran and broken rice separation equipment,the contact parameters of rice bran and broken rice particles were measured and calibrated through bench test and simulation test.By free-fall impact method,impact diffusion method,i...