| 离散元-无限元非线性耦合法 |
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| 引用本文： | 鲍鹏,姜忻良. 离散元-无限元非线性耦合法[J]. 华中科技大学学报(自然科学版), 2004, 32(11): 91-93 |
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| 作者姓名： | 鲍鹏 姜忻良 |
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| 作者单位： | 天津大学,建工学院,天津,300072;河南大学土木建筑学院,河南,开封,475001;天津大学,建工学院,天津,300072 |
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| 基金项目： | 河南省骨干教师资助计划项目 (G2 0 0 2 0 2 5 ) |
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| 摘 要： | 根据变形体动力学方程及模态分解原理，建立了可变形体离散元模型．依照离散元法原理，选用边一边接触模型，推导出相应的理论公式并实现在边界上与无限元的耦合．采用近场土体由离散元模拟，远场土体由无限元模拟，进行土-地下结构相互作用分析．由静力问题的收敛性，验证了计算程序和计算参数选取的正确性，给出了地下结构在地震波作用下的位移反应．
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| 关 键 词： | 土-地下结构相互作用 离散元 无限元 非线性 耦合法 可变形体 |
| 文章编号： | 1671-4512(2004)11-0091-03 |
| 修稿时间： | 2004-02-08 |
Nonlinear coupling method for discrete element-infinite element |
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| Bao Peng Jiang Xinliang Bao Peng Assoc. Prof., School of Civil Eng.,Tianjin University,Tianjin ,China.. Nonlinear coupling method for discrete element-infinite element[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2004, 32(11): 91-93 |
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| Authors: | Bao Peng Jiang Xinliang Bao Peng Assoc. Prof. School of Civil Eng. Tianjin University Tianjin China. |
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| Affiliation: | Bao Peng Jiang Xinliang Bao Peng Assoc. Prof., School of Civil Eng.,Tianjin University,Tianjin 300072,China. |
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| Abstract: | A discrete element model for the deformable for the deformable bodies was built according to the dynamic equation and the model decomposition Based on the fundamental principle of discrete element method, the contact model was selected and the corresponding theoretical formula deduced. In the boundary, the discrete element-infinite element coupling were achieved. The analysis of the soil-underground structure interaction effects was carried out when the nearby soil was described as discrete elements and the soil beyond as infinite ones. The valid of the calculating program and the selection calculating parameters were tested. The dynamic reaction of underground structure was obtained under the earthquake waves. |
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| Keywords: | soil-underground structure interaction effect discrete element infinite element non-linear coupling method deformable bodies |
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