Numerical analysis of wave propagating in a periodic layered structure

Fukuchi, Takaaki; Mori, Naoki; Hayashi, Takahiro

Japanese Journal of Applied Physics, 2022, 61, SG1048

アクセス数:325件（2025-07-03 16:41 集計）

固定URL: https://hdl.handle.net/11094/89908

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タイトル
Numerical analysis of wave propagating in a periodic layered structure
著者
著者名
Fukuchi, Takaaki
NRID
1000000802092 1000000802092
researchmap permalink
7000020478 7000020478
Scopus Author ID
55614094500 55614094500
ORCID
0000-0002-0707-3443 0000-0002-0707-3443
著者名
Mori, Naoki
NRID
1000030324479 1000030324479
ORCID
0000-0001-6064-4658 0000-0001-6064-4658
researchmap permalink
takahiro_hayashi takahiro_hayashi
Scopus Author ID
37064150200 37064150200
著者名
Hayashi, Takahiro
内容
This is the Accepted Manuscript version of an article accepted for publication in Japanese Journal of Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at; https://doi.org/10.35848/1347-4065/ac48cc.
抄録
Controlling sound fields is a key technology for noise removal, acoustic lenses, energy harvesting, etc. This study investigated the control of sound field by a periodic layered structure. At first, we formulated the wave propagation in a periodic layered structure and proved that the wave fields constructed by the periodic boundary conditions are limited to plane wave modes with discretely different propagation directions. Numerical calculations clarified that the desired plane wave mode can be obtained in the transmitted wave through an intermediate thin-plate stacked region in a periodic layered structure, in which Lamb waves travel in each plate at different phase velocities and create phase difference at the exit of the intermediate thin-plate region. Further numerical investigations revealed that tuning frequency and the length of the thin-plate region provides wave field more dominantly with a single wanted plane wave mode.
出版者
IOP Publishing
収録物名
Japanese Journal of Applied Physics
巻(号)
61
ページ
SG1048
刊行年月
2022-05-30
言語
英語
ハンドルURL
https://hdl.handle.net/11094/89908
PISSN
00214922
eISSN
13474065
NCID
AA12295836
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.35848/1347-4065/ac48cc
アクセス権
open access
権利情報
This Accepted Manuscript is available for reuse under a CC BY-NC-ND licence after the 12 month embargo period provided that all the terms of the licence are adhered to
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article