| An explicit finite element－finite difference method for analyzing the effect of visco－elastic local topography on the earthquake motion |
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| 引用本文： | 李小军,廖振鹏,关慧敏.An explicit finite element－finite difference method for analyzing the effect of visco－elastic local topography on the earthquake motion[J].地震学报(英文版),1995,8(3):447-456. |
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| 作者姓名： | 李小军 廖振鹏 关慧敏 |
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| 作者单位： | Xiao-Jun LI;Zhen-Peng LIAO; and Hui-Min GUAN; (Institute of Geophysics，State Seismological Bureau，Beijing 100081，China)(Institute of Engineering Mechanics，State Seismological Bureau，Harbin 150080，China) |
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| 摘 要： | Ａｎｅｘｐｌｉｃｉｔｆｉｎｉｔｅｅｌｅｍｅｎｔ－ｆｉｎｉｔｅｄｉｆｆｅｒｅｎｃｅ ｍｅｔｈｏｄｆｏｒａｎａｌｙｚｉｎｇｔｈｅｅｆｆｅｃｔｏｆｖｉｓｃｏ－ｅｌａｓｔｉｃ ｌｏｃａｌ ｔｏｐｏｇｒａｐｈｙ ｏｎ ｔｈｅ ｅａｒｔｈｑｕａｋｅ ｍｏｔｉｏｎ...
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| 收稿时间： | 31 March 1994 |
| 修稿时间： | 29 August 1994 |
An explicit finite element-finite difference method for analyzing the effect of visco-elastic local topography on the earthquake motion |
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| Xiao-Jun LI,Zhen-Peng LIAO, and Hui-Min GUAN,.An explicit finite element-finite difference method for analyzing the effect of visco-elastic local topography on the earthquake motion[J].Acta Seismologica Sinica(English Edition),1995,8(3):447-456. |
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| Authors: | Xiao-Jun LI Zhen-Peng LIAO and Hui-Min GUAN |
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| Institution: | (1) Institute of Geophysics, State Seismological Bureau, 100081 Beijing, China;(2) Institute of Engineering Mechanics, State Seismological Bureau, 150080 Harbin, China |
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| Abstract: | An explicit finite element-finite difference method for analyzing the effects of two-dimensional visco-elastic localtopography on earthquake ground motion is prOPosed in this paper. In the method, at first, the finite elementdiscrete model is formed by using the artificial boundary and finite element method, and the dynamic equationsof local nodes in the discrete model are obtained according to the theory of the special finite element method similar to the finite difference method, and then the explicit step-by-step integration formulas are presented by usingthe explicit difference method for solving the visco-elastic dynamic equation and Generalized Multi-transmittingBoundary. The method has the advantages of saving computing time and computer memory space, and it is suitable for any case of topography and has high computing accuracy and good computing stability. |
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| Keywords: | visco-elastic seismic response finite difference method explicit finite element artificial boundary |
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