Transformation Method to Control Shear Horizontal Waves
摘要:The transformation method is of great interest to control electromagnetic waves and acoustic waves in recent years, but it does not always work to manipulate elastic waves. In this paper, a detailed analysis of controlling the shear horizontal (SH) wave, which is a special form of elastic waves, is presented by employing the transformation method. Two scenarios of setting needed materials are provided, and the equivalence of them is proved theoretically. To reduce the complexity of required material parameters, the case of a changing out-of-plane coordinate is studied. The linear transformation method and the effective medium theory are introduced to control SH waves by using homogeneous and isotropic materials. Moreover, numerical simulations confirm the validity of this approach even in the cases of anisotropic and inhomogeneous background media, which are rarely investigated before. Finally, the multiple transformations method is proposed as a strategy of designing multi-domain and multi-function devices.
关键字:Transformation method shear horizontal wave effective medium theory invisibility cloak multi-function devices
ISSN号:1758-8251
卷、期、页:卷: 7 期: 3
发表日期:2015-06-01
期刊分区(SCI为中科院分区):三区
收录情况:SCIE(科学引文索引网络版),ESI(基本科学指标数据库),EI(工程索引)
发表期刊名称:INTERNATIONAL JOURNAL OF APPLIED MECHANICS
参与作者:刘咏泉,李冰,苏先樾
第一作者:刘伟
论文类型:期刊论文
论文概要:刘咏泉,刘伟,李冰,苏先樾,Transformation Method to Control Shear Horizontal Waves,INTERNATIONAL JOURNAL OF APPLIED MECHANICS,2015,卷: 7 期: 3
论文题目:Transformation Method to Control Shear Horizontal Waves