Linear transformation method to control flexural waves in thin plates | |
Liu, Yongquan ; Ma, Zhaoyang ; Su, Xianyue | |
刊名 | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
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2016 | |
关键词 | ACOUSTIC CLOAKING INVISIBILITY CLOAK ELASTICITY |
DOI | 10.1121/1.4961005 |
英文摘要 | In this paper, the linear transformation method (LTM) to control flexural waves propagating in thin plates is presented. Unlike earlier studies, only a small number of homogeneous materials with no requirement of in-plane forces or pre-stress are needed, which tremendously simplifies the implementation of devices for flexural waves. An invisibility cloak with homogeneous materials is studied to confirm the validity of the present approach, and to show its imperfection due to impedance mismatch at interfaces. Required materials can be further simplified as layered isotropic materials using the effective medium theory. Finally, the LTM can be extended to the case of flexural waves propagating in anisotropic thin plates. The present method opens a promising avenue toward the realization of advanced structured shields and other devices. (C) 2016 Acoustical Society of America.; National Natural Science Foundation of China [11232001]; China Scholarship Council; SCI(E); PubMed; ARTICLE; xyswsk@pku.edu.cn; 2; 1154-1161; 140 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/493036] ![]() |
专题 | 工学院 |
推荐引用方式 GB/T 7714 | Liu, Yongquan,Ma, Zhaoyang,Su, Xianyue. Linear transformation method to control flexural waves in thin plates[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2016. |
APA | Liu, Yongquan,Ma, Zhaoyang,&Su, Xianyue.(2016).Linear transformation method to control flexural waves in thin plates.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA. |
MLA | Liu, Yongquan,et al."Linear transformation method to control flexural waves in thin plates".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA (2016). |
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