摘要
基于变形体动力学原理,建立了新的可变形块体单元模型.根据离散元法原理,采用边-边接触关系及动态松弛法,推导出其理论公式并编制了计算程序;由静力问题计算结果的收敛性,验证了计算程序和计算参数选取的正确性,求出了地下结构在人工地震波作用下的动力反应.
Based on the principle of deformation dynamics, a new discrete element model for deformable bodies is established in this paper. From the side-side contact relation and the dynamic relaxation method, theoretical formulas are derived and the corresponding calculation program is worked out according to the discrete element method （DEM）. From the astringency of the calculation results in the static problem, the validity of the calculation program and the selected parameters is verified, and the motive reaction of the underground structure under artificial seismic wave is solved.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2008年第4期429-433,共5页
Journal of Henan University:Natural Science
基金
The Development Programof Science and Technology of Henan Province(496260015)
关键词
离散元法
可变形体
地下结构
动力相互作用
地震反应
discrete element method （DEM）
deformable bodies
underground structure
dynamic interaction effects
earthquake response
