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Rectification of elastic waves in a thin plate
Title: | Rectification of elastic waves in a thin plate |
Authors: | Tanaka, Yukihiro Browse this author →KAKEN DB | Murai, Takahiro Browse this author | Nishiguchi, Norihiko Browse this author |
Keywords: | acoustic wave interference | acoustic wave scattering | plates (structures) | structural acoustics | surface acoustic waves |
Issue Date: | 15-Jan-2012 |
Publisher: | American Institute of Physics |
Journal Title: | Journal of Applied Physics |
Volume: | 111 |
Issue: | 2 |
Start Page: | 024507 |
Publisher DOI: | 10.1063/1.3677997 |
Abstract: | We propose a rectifier of elastic waves in a thin plate, which is made of an elastically isotropic material containing a periodic array of triangular holes as scatterers, and demonstrate numerically that it works both for the symmetric and anti-symmetric Lamb waves as well as shear horizontal waves. The rectification is caused by the geometric effects on wave scattering due to the asymmetric scatterers, while the interplay between the mode conversion and interference effects among the scattered waves owing to the periodic arrangement of scatterers complicates it. The mechanism makes it possible to rectify the typical elastic waves in the system above the threshold frequency corresponding to the wavelength equivalent to the periodicity of scatterers. |
Rights: | Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 111, 024507 (2012) and may be found at https://dx.doi.org/10.1063/1.3677997 |
Type: | article |
URI: | http://hdl.handle.net/2115/48515 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 田中 之博
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