| An explicit finite element method for dy—namic analysis in three—medium coupling system and its application |
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| 引用本文： | 赵成刚,李伟华,王进廷,李亮.An explicit finite element method for dy—namic analysis in three—medium coupling system and its application[J].地震学报(英文版),2003,16(3):272-282. |
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| 作者姓名： | 赵成刚 李伟华 王进廷 李亮 |
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| 作者单位： | School of Civil Engineering & Architecture，Northern Jiao-tong University，Beijing 100044，China，School of Civil Engineering & Architecture，Northern Jiao-tong University，Beijing 100044，China，School of Civil Engineering & Hydropower Engineering，Tsing Hua University，Beijing 100084，China，School of Civil Engineering & Architecture，Northern Jiao-tong Universiyt，Beijing 100044，China |
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| 基金项目： | National Natural Scienccs Foundation of China (50178005). |
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| 摘 要： | In this paper,an explicit finite element method to analyze the dynamic responses of three-medium coupled systems with any terrain is developed on the basis of the numerical simulation of the continuous conditions on the bounda-ries among fluid saturated porous medium,elastic single-phase medium and ideal fluid medium.This method is a very effective one with the characteristic of high calculating speed and small memory needed because the formulae for this explicit finite element method have the characteristic of decoupling,and which does not need to solve sys-tem of linear equations.The method is applied to analyze the dynamic response of a reservoir with considering the dynamic interactions among water,dam,sediment and basement rock.The vertical displacement at the top point of the dam is calculated and some conclusions are given.
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| 关 键 词： | 三种介质耦联系统 动力反应分析 显式有限元法 动力响应分析 土－结构－流体动力相互作用 土动力学 |
| 收稿时间： | 17 June 2002 |
| 修稿时间： | 3 January 2003 |
An explicit finite element method for dynamic analysis in three-medium coupling system and its application |
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| Zhao Cheng-gang , Li Wei-hua , Wang Jin-ting and Li Liang.An explicit finite element method for dynamic analysis in three-medium coupling system and its application[J].Acta Seismologica Sinica(English Edition),2003,16(3):272-282. |
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| Authors: | Zhao Cheng-gang Li Wei-hua Wang Jin-ting and Li Liang |
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| Institution: | 1. School of Civil Engineering & Architecture, Northern Jiao-tong University, Beijing 100044, China
2. School of Civil Engineering & Hydropower Engineering, Tsing Hua University, Beijing 100084, China |
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| Abstract: | In this paper, an explicit finite element method to analyze the dynamic responses of three-medium coupled systems with any terrain is developed on the basis of the numerical simulation of the continuous conditions on the bounda-ries among fluid saturated porous medium, elastic single-phase medium and ideal fluid medium. This method is a very effective one with the characteristic of high calculating speed and small memory needed because the formulae for this explicit finite element method have the characteristic of decoupling, and which does not need to solve sys-tem of linear equations. The method is applied to analyze the dynamic response of a reservoir with considering the dynamic interactions among water, dam, sediment and basement rock. The vertical displacement at the top point of the dam is calculated and some conclusions are given. |
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| Keywords: | fluid saturated porous medium-elastic single-phase medium-ideal fluid medium coupled system dynamic response analysis explicit finite element method |
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