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Rectification of elastic waves in a thin plate

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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
Type: article
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)

Submitter: 田中 之博

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