全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

倾斜入射快纵波在饱和土中单个圆柱体周围的散射

, PP. 31-38

Keywords: 饱和土,圆柱体,倾斜入射,快纵波,散射

Full-Text   Cite this paper   Add to My Lib

Abstract:

在Biot饱和土波动理论的基础上,采用波函数展开法,研究了饱和土体中单个圆柱体对倾斜入射PI波的散射特性,计算了背向散射谱和总散射截面积。结果表明,饱和土体中PI波倾斜入射时,随着倾斜入射角的增大,总散射截面积在减小,产生的散射波主要以PI波和SV波为主;随着饱和土体渗透系数的减小,PI波、PⅡ波和SV波背向散射谱平均幅值均呈增大趋势,但PI波背向散射谱幅值变化程度较小。

References

[1]  White R M.Elasticwave scattering at a cylindrical discontinuity in a solid[J].Journal of the Acoustical Society of America,1958,30(8):771-785.
[2]  Schuetz L S,NeubauerW G.Acoustic reflection from cylinders-nonabsorbing and absorbing[J].Journal of the Acoustical Society of America,1977,62(3):513-517.
[3]  Stoll R D,Kan T K.Reflection of acoustic waves at a water-sedmient in terface[J].Journal of the Acoustical Society of America,1981,70(1):149-156.
[4]  Flax L,Varadan V K,Varadan V V.Scattering of an obliquely incident acoustic wave by an infinite cylinder[J].Journal of the Acoustical Society of America,1980,68(6):1832-1835.
[5]  Li T B,Ueda M.Sound scattering of a plane wave obliquely incident on acylinder[J].Journal of the Acoustical Society of America,1989,86(6):2363-2368.
[6]  Lon F,Lecroq F,Dcultot D,et al Scattering of an obliquely incident acoustic wave by an infinite hollow cylindrical shell[J].Journal of the Acoustical Society of America,1992,91(3):1388-1392.
[7]  Huang W,Wang Y J,Rokhlin S.I Oblique scattering of an elasticw ave from amultilayered cylinder in a solid[J].Journal of the Acoustical Society of America,1996,99(5):2742-2954.
[8]  刘胜兴,王耀俊.横向各向同性柱状复合结构对超声波的散射[J].声学学报,2002,27(2):149-156.
[9]  Mitri F G,Fellah Z E A,Chapelon J Y.Acoustic backscattering form function of absorbing cylindertargets[J].Journal of the Acoustical Society of America,2004,115(4):1411-1413.
[10]  徐平,夏唐代,韩同春.饱和弹性土体中圆柱壳体对弹性波的散射[J].地震学报,2006,28(2):183-189.
[11]  梁建文,刘中宪.柱面波在半空间中洞室周围的散射[J].地震工程与工程振动,2008,28(5):27-37.
[12]  李伟华,赵成刚.平面SV波在饱和土半空间中圆柱形孔洞周边的散射[J].地震工程与工程振动,2008,28(6):1-7.
[13]  BiotM A.Theory of propagation of elastic waves in a fluid-saturated poroussolid[J].Journal of the Acoustical Society of America,1956,28(2):168-191.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133