中国物理B ›› 2015, Vol. 24 ›› Issue (5): 54301-054301.doi: 10.1088/1674-1056/24/5/054301

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Interface-guided mode of Lamb waves in a two-dimensional phononic crystal plate

黄平平a, 姚源卫a, 吴福根b, 张欣a, 李静a, 胡爱珍a   

  1. a Department of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    b Department of Experiment Education, Guangdong University of Technology, Guangzhou 510006, China
  • 收稿日期:2014-05-20 修回日期:2014-09-14 出版日期:2015-05-05 发布日期:2015-05-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11374068 and 11374066), the Science & Technology Star of Zhujiang Foundation of Guangzhou, China (Grant No. 2011J2200013), and the Natural Science Foundation of Guangdong, China (Grant No. S2012020010885).

Interface-guided mode of Lamb waves in a two-dimensional phononic crystal plate

Huang Ping-Ping (黄平平)a, Yao Yuan-Wei (姚源卫)a, Wu Fu-Gen (吴福根)b, Zhang Xin (张欣)a, Li Jing (李静)a, Hu Ai-Zhen (胡爱珍)a   

  1. a Department of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    b Department of Experiment Education, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2014-05-20 Revised:2014-09-14 Online:2015-05-05 Published:2015-05-05
  • Contact: Yao Yuan-Wei E-mail:yaoyw@scut.edu.cn
  • About author:43.20.+g; 43.35.+d; 62.60.+v
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11374068 and 11374066), the Science & Technology Star of Zhujiang Foundation of Guangzhou, China (Grant No. 2011J2200013), and the Natural Science Foundation of Guangdong, China (Grant No. S2012020010885).

摘要: We investigate the interface-guided mode of Lamb waves in a phononic crystal heterostructures plate, which is composed of two different semi-infinite phononic crystal (PC) plates. The interface-guided modes of the Lamb wave can be obtained by the lateral lattice slipping or by the interface longitudinal gliding. Significantly, it is observed that the condition to generate the interface-guided modes of the Lamb wave is more demanding than that of the studied fluid–fluid system. The interface-guided modes are strongly affected not only by the relative movement of the two semi-infinite PCs but also by the thickness of the PC plate.

关键词: phononic crystals, Lamb wave, interface guided modes, heterostructures

Abstract: We investigate the interface-guided mode of Lamb waves in a phononic crystal heterostructures plate, which is composed of two different semi-infinite phononic crystal (PC) plates. The interface-guided modes of the Lamb wave can be obtained by the lateral lattice slipping or by the interface longitudinal gliding. Significantly, it is observed that the condition to generate the interface-guided modes of the Lamb wave is more demanding than that of the studied fluid–fluid system. The interface-guided modes are strongly affected not only by the relative movement of the two semi-infinite PCs but also by the thickness of the PC plate.

Key words: phononic crystals, Lamb wave, interface guided modes, heterostructures

中图分类号:  (General linear acoustics)

  • 43.20.+g
43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound) 62.60.+v (Acoustical properties of liquids)