|
|||||
|
|
| 弹性波方程有限元模拟的曲边地表处理 | |
| 引用本文： | 杨晶晶,黄自萍. 弹性波方程有限元模拟的曲边地表处理[J]. 应用数学与计算数学学报, 2007, 21(1): 41-47,54 |
| 作者姓名： | 杨晶晶 黄自萍 |
| 作者单位： | 同济大学应用数学系,上海,200092 |
| 摘 要： | 本文对比研究了关于弹性波模拟中的曲边地表形状处理的两种方法,一种是用给定的实际介质数值划定的地表形状,另一种是用样条插值逼近地表形状.本文采用有限元方法进行弹性波数值模拟,给出了基于这两种方法计算的数值例子,并对结果进行了分析比较.结果表明使用后一种方法对地表进行处理时,地表人工离散产生的干扰明显减少,优于前一种方法. |
| 关 键 词： | 曲边地表 弹性波 样条插值 有限元方法 |
| 修稿时间： | 2004-11-29 |
Numerical Simulation of Seismic Wave Equation in Finite Element Method for the Curved Surface |
|
| Yang Jingjing,Huang Ziping. Numerical Simulation of Seismic Wave Equation in Finite Element Method for the Curved Surface[J]. Communication on Applied Mathematics and Computation, 2007, 21(1): 41-47,54 | |
| Authors: | Yang Jingjing Huang Ziping |
| Affiliation: | Department of Applied Mathematics, Tongji University, Shanghai 200092, China |
| Abstract: | In the paper,we compare two methods of numerical simulation of seismic wave equation in the finite element method to deal with the curved surface.One method is to describe the surface with the actual data;the other method is to use the spline interpolation to approach the surface.We use the finite element method to simulate the elastic wave,calculate the examples with the two methods mentioned above and compare the results.The results show that the pollutant produced by the surface in the later method is less than the former method. |
| Keywords: | curved surface elastic wave spline interpolation the finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |