垂直界面附近橢圓形夾雜對(duì)SH波的散射與地震動(dòng)研究
發(fā)布時(shí)間:2018-12-16 01:52
【摘要】:利用復(fù)變函數(shù)法和Green函數(shù)法給出了SH波對(duì)垂直界面附近橢圓形夾雜散射問題的解析解答。首先,將待求的半空間模型沿垂直邊界分割為區(qū)域Ⅰ和區(qū)域Ⅱ兩個(gè)直角域。通過保角映射的方法將區(qū)域Ⅰ內(nèi)橢圓形夾雜的外域映射為單位圓外域,并利用鏡像方法構(gòu)造出兩個(gè)區(qū)域內(nèi)滿足直角域邊界條件的散射波場及適用的Green函數(shù);其次,利用界面契合思想,通過在界面處添加附加力系的方法建立起滿足界面處位移和應(yīng)力連續(xù)條件的無窮代數(shù)方程組,并截?cái)嘤邢揄?xiàng)求解;最后,給出了求解地表位移幅值的具體算例。結(jié)果表明,入射波數(shù)、入射角度、夾雜位置、垂直界面以及材料參數(shù)都對(duì)地表位移幅值的分布有影響。
[Abstract]:By using the complex variable function method and the Green function method, the analytical solution of the elliptical inclusion scattering problem near the vertical interface by SH wave is given. Firstly, the half-space model is divided into two right angle regions: region I and region 鈪,
本文編號(hào):2381656
[Abstract]:By using the complex variable function method and the Green function method, the analytical solution of the elliptical inclusion scattering problem near the vertical interface by SH wave is given. Firstly, the half-space model is divided into two right angle regions: region I and region 鈪,
本文編號(hào):2381656
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