| 弹性波斜入射声子晶体的缺陷模及其转型 |
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| 引用本文： | 刘启能.弹性波斜入射声子晶体的缺陷模及其转型[J].计算物理,2010,27(1):131-136. |
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| 作者姓名： | 刘启能 |
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| 作者单位： | 重庆工商大学计信学院, 重庆 400067 |
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| 基金项目： | 重庆市教委科技项目基金，废油资源化技术与装备教育部工程研究中心基金 |
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| 摘 要： | 推导出弹性波斜入射固-固掺杂结构声子晶体的转移矩阵和透射系数公式.计算固-固掺杂结构声子晶体中弹性波的透射系数.得到当横波斜入射时,透射波中横波的缺陷模随着入射角的增大而减弱,横波向纵波的转型随着入射角的增大而增强.当纵波斜入射时,透射波中纵波的缺陷模随着入射角的增大而减弱,纵波向横波的转型随着入射角的增大而增强.
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| 关 键 词： | 声子晶体 弹性波 转移矩阵 缺陷摸 |
| 收稿时间： | 2008-03-10 |
| 修稿时间： | 2009-02-18 |
Defect Mode and Reforming of Oblique Incidence Elastic Waves in Phononic Crystal |
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| LIU Qineng.Defect Mode and Reforming of Oblique Incidence Elastic Waves in Phononic Crystal[J].Chinese Journal of Computational Physics,2010,27(1):131-136. |
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| Authors: | LIU Qineng |
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| Institution: | Computer Science College of Chongqing Technology and Business University, Chongqing 400067, China |
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| Abstract: | Transfer matrix and transmission coefficients in doping phononic crystal are obtained.Transmission coefficient of elastic waves in doping phononic crystal is calculated.With oblique incidence transversal wave,defect mode of transversal wave decreases with increase of incident angle.Transformation of transversal wave toward longitudinal wave increases with increase of incident angle.With oblique incidence longitudinal wave,defect mode of longitudinal wave decreases with increase of incident angle.Transformation of longitudinal wave toward transversal wave increases with increase of incident angle. |
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| Keywords: | phononic crystal elastic wave transfer matrix defect mode |
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