| 刚性半空间上的弹性层中的平面波模态分析 |
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| 引用本文： | 吴国荣,黄菊花,揭小平,杨国泰.刚性半空间上的弹性层中的平面波模态分析[J].南昌大学学报(工科版),2000,22(3):9-12. |
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| 作者姓名： | 吴国荣 黄菊花 揭小平 杨国泰 |
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| 作者单位： | 南昌大学机电工程学院,江西南昌330029 |
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| 基金项目： | 江西省自然科学基金资助项目(985007)，江西省计委重点科技攻关项目(Z01429) |
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| 摘 要： | 提出了一种新的带有弹性覆盖层的刚性半空间模型，并对弹性层中的平面应变波进行了模态分析。分析表明，在混合边界条件下，弹性层中的平面应变波具有两个模态－对称模态和反对称模态。在这两种模态下，P波和SV波都是不耦联的。在基本模态下，P波和SV波都是非弥散的，而其它的模态均具有弥散性质。
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| 关 键 词： | 弹性层 平面波 模态 刚性半空间 |
| 文章编号： | 1006-0456(2000)03—O009—04 |
A Modal Analysis on Plane Wave in Elastic Layer above Rigid Half- space |
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| Wu Guorong,Huang Juhua,Jie Xiaoping,Yang Guotai.A Modal Analysis on Plane Wave in Elastic Layer above Rigid Half- space[J].Journal of Nanchang University(Engineering & Technology Edition),2000,22(3):9-12. |
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| Authors: | Wu Guorong Huang Juhua Jie Xiaoping Yang Guotai |
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| Affiliation: | Wu Guorong
,Huang Juhua
,Jie Xiaoping
,Yang Guotai
;(Mechanical and Electronic Engineering School, Nanchang University, Nanchang 330029, China) |
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| Abstract: | A new model is proposed of rigid half-space with one elastic layer on top,and a modal analysis is made on plane strain wave in the elastic layer.The analysis shows that the plane strain wave under hybrid boundary condition has two modes,symmetric and asymmetric .P wave and SV wave are not coupled under the two modes,and P wave and SV wave are non- dispersive under basic mode but dispersive under other modes. |
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| Keywords: | elastic layer plane strain wave mode |
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