散粒体-贮仓结构-地基的动力特性分析  

The Analysis of Dynamic Interaction on Bulk Solids And Silo Structure and Its Foundation

作　　者：尹冠生[1] 黄义[1] 

机构地区：[1]西安建筑科技大学,西安710054

出　　处：《应用力学学报》2002年第4期92-97,共6页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金项目 (批准号 :5 96780 0 3 );国土资源部岩土工程开放研究实验室项目 (批准号 :KF0 0 6)

摘　　要：以筒仓模型结构为例 ,考虑到散粒体 结构 地基的相互作用 ,对弹性地基上筒仓内的散粒体的不同计算模型进行了多种工况、系统的有限元动力分析计算。通过与筒仓模型动力实验结果进行了比较 ,得出结论 :在对地基施以水平激励时 ,弹性地基上筒仓的动力响应大于刚性地基上筒仓的动力响应 ,散粒体与仓壁的相对运动对筒仓结构有减振作用。Considering the interaction of bulk solids and silo structure and its foundation, a systematic dynamic analysis of many kinds of cases to the bulk solid's different calculating model of silo structure, which is put on the elastic foundation, was carried out in the paper. The conclusion is made after a comparing with the testing results made by authors: To the horizontal impulse of foundation, the dynamic response of silo on elastic foundation is stronger than that of silo on rigid foundation; the relative motion between the silo wall and bulk solids has the effect of lightening the vibration of silo structure.

关 键 词：筒仓 相互作用 刚性地基 弹性地基 散粒体 计算模式 

分 类 号：O326[理学—一般力学与力学基础] TU317.1[理学—力学]