摘要
确定散射波的远场特性是弹性波散射理论研究的基础课题之一.采用复变函数的保角映射方法,求解了二维弹性空间中椭圆孔洞对SH波散射的远场解,在求解过程中建立了一套新的求解方法.给出了散射波远场位移模式和散射截面的解答.分析了椭圆孔对SH波散射的远场特性,给出可供直接查阅的描述散射波远场特性的曲线,为弹性波散射的反问题研究提供参考.
The far field solution of SHwave by an elliptic cavity in elastic space of two dimensions by use of complex function method is investigated. A new method to solve this kind of problem is established in the solving progress. The displacement mode of scattered wave in a far field and scattering crosssection are given. The characteristic on scattered SHwave by an elliptic cavity in a far field is discussed. Curves that have represent characteristic of scattered wave in a far field are given and could be consulted directly. It presents a reference for studying antiproblem of elastic wave scattering.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2003年第3期334-338,共5页
Journal of Harbin Engineering University
基金
黑龙江省自然科学基金资助项目(A0206).
关键词
SH波散射
复变函数
远场解
散射截面
椭圆孔
scattering of SH-wave
complex function
far filed solution
scattering cross-section
elliptic cavity
