Fluid–Structure Interaction Analysis of Trapezoidal and Arc-Shaped Membranes Mimicking the Organ of Corti

Doi, Kentaro; Takeuchi, Sho; Yamazaki, Hiroki et al.

International Journal for Numerical Methods in Biomedical Engineering, 2025, 41(1), e3896

アクセス数:484件（2025-08-28 23:06 集計）

固定URL: https://hdl.handle.net/11094/100340

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タイトル
Fluid–Structure Interaction Analysis of Trapezoidal and Arc-Shaped Membranes Mimicking the Organ of Corti
著者
NRID
1000020378798 1000020378798
researchmap permalink
doiken doiken
著者名
Doi, Kentaro
著者名
Takeuchi, Sho
NRID
1000080926288 1000080926288
ORCID
0000-0003-1573-8940 0000-0003-1573-8940
researchmap permalink
HirokiYamazaki HirokiYamazaki
Scopus Author ID
57202306384 57202306384
著者名
Yamazaki, Hiroki
著者名
Tsuji, Tetsuro
NRID
1000000250837 1000000250837
researchmap permalink
read0180299 read0180299
Scopus Author ID
56192450900 56192450900
著者名
Kawano, Satoyuki
キーワード等
animal test
artificial basilar membrane
fluid–structure interaction
PVDF
resonant frequency
Ringer's solution
内容
Doi K., Takeuchi S., Yamazaki H., et al. Fluid–Structure Interaction Analysis of Trapezoidal and Arc-Shaped Membranes Mimicking the Organ of Corti. International Journal for Numerical Methods in Biomedical Engineering 41, e3896 (2025); https://doi.org/10.1002/cnm.3896.
抄録
In a previous study [H. Shintaku et al., Sensors and Actuators A: Physical 158 (2010): 183–192], an artificially developed auditory sensor device showed a frequency selectivity in the range from 6.6 to 19.8 kHz in air and from 1.4 to 4.9 kHz in liquid. Furthermore, the sensor succeeded in obtaining auditory brain-stem responses in deafened guinea pigs [T. Inaoka et al., Proceedings of the National Academy of Sciences of the United States of America 108 (2011): 18390–18395]. Since then, several research groups have developed piezoelectric auditory devices that have the capability of acoustic/electric conversion. However, the piezoelectric devices are required to be optimally designed with respect to the frequency range in liquids. In the present study, focusing on the trapezoidal shape of the piezoelectric membrane, the vibration characteristics are numerically and experimentally investigated. In the numerical analysis, solving a three-dimensional fluid-structure interaction problem, resonant frequencies of the trapezoidal membrane are evaluated. Herein, Young's modulus of the membrane, which is made of polyvinylidene difluoride and is different from that of bulk, is properly determined to reproduce the experimental results measured in air. Using the modified elastic modulus for the membrane, the vibration modes and resonant frequencies in liquid are in good agreement with experimental results. It is also found that the resonant characteristics of the artificial basilar membrane for guinea pigs are quantitatively reproduced, considering the fluid–structure interaction. The present numerical method predicts experimental results and is available to improve the frequency selectivity of the piezoelectric membranes for artificial cochlear devices.
出版者
John Wiley and Sons Inc
収録物名
International Journal for Numerical Methods in Biomedical Engineering
巻(号)
41(1)
ページ
e3896
刊行年月
2025-01-01
言語
英語
ハンドルURL
https://hdl.handle.net/11094/100340
PISSN
20407939
eISSN
20407947
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1002/cnm.3896
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article