散体物料对筒仓结构动力响应影响的离散元数值模拟  

DISCRETE ELEMENT NUMERICAL SIMULATION FOR DETERMINING THE INFLUENCES OF GRANULAR MATERIALS ON DYNAMIC RESPONSE OF SILO STRUCTURE

作　　者：王军[1] 何迎春 孙红亮[1] 

机构地区：[1]河南工业大学土木建筑学院,河南郑州450052 [2]河南省建筑工程学校,河南郑州450052

出　　处：《河南工业大学学报（自然科学版）》2009年第2期74-77,共4页Journal of Henan University of Technology：Natural Science Edition

摘　　要：采用基于离散单元法的颗粒流程序建立筒仓模型,通过对模型基础施加有规律简谐地震动,模拟了筒仓结构在简谐地震动作用下的仓壁侧压力变化情况、位移响应和速度响应,并且通过对筒仓内无散体颗粒、有一半散体颗粒和装满颗粒3种工况下筒仓的动力响应进行模拟,得出筒仓结构与散体颗粒相互作用的动力响应影响情况.A silo model was established by particle flow code based on discrete element method. Regular harmonic seismic motion was applied on a model base, and the change of wall lateral pressure, the displacement response and the velocity response of the silo structure were simulated under harmonic seismic motion. The simulation of dynamic response of the silo was conducted under the condition of no granular materials, half-filled with the granular materials and fully - filled with the granular materials to obtain the influences of the interaction of the silo structure and the granular materials on the dynamic response of the silo structure.

关 键 词：筒仓 侧压力 位移响应 速度响应 

分 类 号：TS210[轻工技术与工程—粮食、油脂及植物蛋白工程]