Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications
文献类型:期刊论文
作者 | Chen, Jing-Bo1,2,3; Cao, Jian1,2,3 |
刊名 | GEOPHYSICAL PROSPECTING
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出版日期 | 2020-01-15 |
页码 | 10 |
关键词 | Elastodynamic Green's function Green's function computation Modelling |
ISSN号 | 0016-8025 |
DOI | 10.1111/1365-2478.12928 |
英文摘要 | High-speed train seismology has come into being recently. This new kind of seismology uses a high-speed train as a repeatable moving seismic source. Therefore, Green's function for a moving source is needed to make theoretical studies of the high-speed train seismology. Green's function for three-dimensional elastic wave equation with a moving point source on the free surface is derived. It involves a line integral of the Green's function for a fixed point source with different positions and corresponding time delays. We give a rigorous mathematical proof of this Green's function. According to the principle of linear superposition, we have also obtained the Green's function for a group of moving sources which can be regarded as a model of a traveling high-speed train. Based on a temporal convolution, an analytical formula for other moving sources is also given. In terms of a moving Gaussian source, we deal with the issue of numerical calculations of the analytical formula. Applications to modelling of a traveling high-speed train are presented. We have considered both the land case and the bridge case for a traveling high-speed train. The theoretical seismograms show different waveform features for these two cases. |
WOS关键词 | PROPAGATION |
资助项目 | National Natural Science Foundation of China[41874163] ; National Natural Science Foundation of China[41674132] ; National Major Project of China[2018YFF01013503] |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
WOS记录号 | WOS:000507131700001 |
出版者 | WILEY |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/95923] ![]() |
专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
通讯作者 | Chen, Jing-Bo |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Jing-Bo,Cao, Jian. Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications[J]. GEOPHYSICAL PROSPECTING,2020:10. |
APA | Chen, Jing-Bo,&Cao, Jian.(2020).Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications.GEOPHYSICAL PROSPECTING,10. |
MLA | Chen, Jing-Bo,et al."Green's function for three-dimensional elastic wave equation with a moving point source on the free surface with applications".GEOPHYSICAL PROSPECTING (2020):10. |
入库方式: OAI收割
来源:地质与地球物理研究所
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