摘要
采用离散单元法模拟分析仓壁摩擦因数不同的筒仓在贮料和卸料工况下的仓壁侧压力变化。研究结果表明,卸料引发的仓壁峰值压力分布为筒仓结构设计的控制压力。随着仓壁摩擦因数的增大,超压因数呈增大的趋势,而筒仓侧壁的静止压力和卸料压力峰值均有减小的趋势,且摩擦因数对仓壁侧压力的影响程度随着深度的增加而增大。
The paper simulated and analyzed the changes of lateral pressure on the wall of silos with different wall friction coefficient under storage and dischage conditions by using discrete element method.Results showed that the peak pressure distrubution on the wall caused by discharge was the control pressure for silo structure design.With the increase of the wall friction coefficient,the overpressure coefficient increased,but the static pressure and the peak discharge pressure on the side wall of silos decreased.The influences of the friction factor on the laterial pressure on the wall were deepened wiht the depth.
作者
张昭
刘克瑾
肖昭然
王世豪
ZHANG Zhao;LIU Kejin;2, XIAO Zhaoran;WANG Shihao(Zhengzhou City Rail Transit Co. , Ltd. , Zhengzhou 450002, China;College of Civil Engineering and Architecture , Henan University of Technology, Zhengzhou 450001 , China)
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2017年第5期88-92,共5页
Journal of Henan University of Technology：Natural Science Edition
基金
河南工业大学高层次人才基金项目(150597)
国家自然科学基金项目(51178165
51708183)
关键词
筒仓
离散单元法
摩擦因数
侧压力
discrete element method
friction coefficient
lateral pressure
