| 位移阶跃SH波对半圆形凹陷地形的散射 |
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| 引用本文： | 刘国利,刘殿魁.位移阶跃SH波对半圆形凹陷地形的散射[J].力学学报,1994,26(1):70-80. |
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| 作者姓名： | 刘国利 刘殿魁 |
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| 作者单位： | 哈尔滨船舶工程学院航天工程系 |
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| 摘 要： | 本文利用积分变换和波函数展开方法求解位移阶跃的平面ＳＨ波对半圆形凹陷地形的散射问题，导出了散射位移场的解析表达式，，并给出了在凹陷地形表面上各点位移时程反应的数值结果。本文的结果可做为Ｄｕｈａｍｅｌ积分的影响系数求解一个随时间任意变化的平面ＳＨ波被半圆形凹陷地形散射的问题。
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| 关 键 词： | 位移阶跃SH波，散射，凹陷地形，积分变换和波函数展开 |
THE SCATTERING OF DISPLACEMENT STE SH-WAVES BY A SEMI-CYLINDRICAL CANYON |
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| Liu Guoli,Liu Diankui.THE SCATTERING OF DISPLACEMENT STE SH-WAVES BY A SEMI-CYLINDRICAL CANYON[J].chinese journal of theoretical and applied mechanics,1994,26(1):70-80. |
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| Authors: | Liu Guoli Liu Diankui |
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| Abstract: | The problem of scattering of a plane displacement step SH-wave by a semi-cylindrical c anyon is considered analyt ic alytically Expressions for the displacement field inducedare derived by means of an integral transform technique and expansion of wave funct ions.Numerical results are presented for the points on the surface of the canyon and the halfspace: This result is expected to be used as influence coefficients of Duhamel integral in thesolution of the displacement field due to the time-varying scattering of SH-wave. |
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| Keywords: | displacement step SH-wave scattering canyon integral transform ex-pansion of wave functions |
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