{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T16:21:43Z","timestamp":1754151703597,"version":"3.41.2"},"reference-count":43,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,12,25]],"date-time":"2024-12-25T00:00:00Z","timestamp":1735084800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100009619","name":"Japan Agency for Medical Research and Development","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009619","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Numer Methods Biomed Eng"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>In a previous study [H. Shintaku et\u00a0al., <jats:italic>Sensors and Actuators A: Physical<\/jats:italic> 158 (2010): 183\u2013192], an artificially developed auditory sensor device showed a frequency selectivity in the range from 6.6 to 19.8\u2009kHz in air and from 1.4 to 4.9\u2009kHz in liquid. Furthermore, the sensor succeeded in obtaining auditory brain\u2010stem responses in deafened guinea pigs [T. Inaoka et\u00a0al., <jats:italic>Proceedings of the National Academy of Sciences of the United States of America<\/jats:italic> 108 (2011): 18390\u201318395]. 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\u2010dimensional fluid\u2010structure 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\u2013structure interaction. The present numerical method predicts experimental results and is available to improve the frequency selectivity of the piezoelectric membranes for artificial cochlear devices.<\/jats:p>","DOI":"10.1002\/cnm.3896","type":"journal-article","created":{"date-parts":[[2024,12,25]],"date-time":"2024-12-25T22:55:31Z","timestamp":1735167331000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Fluid\u2013Structure Interaction Analysis of Trapezoidal and Arc\u2010Shaped Membranes Mimicking the Organ of Corti"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2663-9369","authenticated-orcid":false,"given":"Kentaro","family":"Doi","sequence":"first","affiliation":[{"name":"Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science Osaka University  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sho","family":"Takeuchi","sequence":"additional","affiliation":[{"name":"Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science Osaka University  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1573-8940","authenticated-orcid":false,"given":"Hiroki","family":"Yamazaki","sequence":"additional","affiliation":[{"name":"Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science Osaka University  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2087-5459","authenticated-orcid":false,"given":"Tetsuro","family":"Tsuji","sequence":"additional","affiliation":[{"name":"Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science Osaka University  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoyuki","family":"Kawano","sequence":"additional","affiliation":[{"name":"Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science Osaka University  Osaka Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,12,25]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1110036108"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1088\/0034-4885\/77\/7\/076601"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1038\/srep12447"},{"volume-title":"Schuknecht's Pathology of the Ear","year":"2010","author":"Merchant S.","key":"e_1_2_10_5_1"},{"volume-title":"Theory of Hearing","year":"1970","author":"Wever E.","key":"e_1_2_10_6_1"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1017\/S0022112081001560"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016487809124733"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1177\/108471380400800102"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/RBME.2008.2008250"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.heares.2014.08.002"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sna.2009.12.021"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1299\/jbse.5.229"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.5614\/j.eng.technol.sci.2013.45.1.5"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.4028\/www.scientific.net\/AMM.493.372"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.sna.2019.05.043"},{"key":"e_1_2_10_17_1","unstructured":"J. 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