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

Number of Access:484（2025-08-28 23:54 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100340

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Title
Fluid–Structure Interaction Analysis of Trapezoidal and Arc-Shaped Membranes Mimicking the Organ of Corti
Creator
NRID
1000020378798 1000020378798
researchmap permalink
doiken doiken
CreatorName
Doi, Kentaro
CreatorName
Takeuchi, Sho
NRID
1000080926288 1000080926288
ORCID
0000-0003-1573-8940 0000-0003-1573-8940
researchmap permalink
HirokiYamazaki HirokiYamazaki
Scopus Author ID
57202306384 57202306384
CreatorName
Yamazaki, Hiroki
CreatorName
Tsuji, Tetsuro
NRID
1000000250837 1000000250837
researchmap permalink
read0180299 read0180299
Scopus Author ID
56192450900 56192450900
CreatorName
Kawano, Satoyuki
Subject
animal test
artificial basilar membrane
fluid–structure interaction
PVDF
resonant frequency
Ringer's solution
Description
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.
Abstract
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.
Publisher
John Wiley and Sons Inc
Source Title
International Journal for Numerical Methods in Biomedical Engineering
Volume (Issue)
41(1)
Page
e3896
Date of Issued
2025-01-01
Language
English
Handle URL
https://hdl.handle.net/11094/100340
PISSN
20407939
eISSN
20407947
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/cnm.3896
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Category
学術雑誌論文 Journal Article