Computational Modeling of Blast Wave Transmission Through Human Ear

被引：12

作者：

Leckness, Kegan ^{[1
]}

Nakmali, Don ^{[1
]}

Gan, Rong Z. ^{[1
]}

机构：

[1] Univ Oklahoma, Sch Aerosp & Mech Engn, 865 Asp Ave, Norman, OK 73019 USA

来源：

MILITARY MEDICINE | 2018年 / 183卷

关键词：

D O I：

10.1093/milmed/usx226

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Hearing loss has become the most common disability among veterans. Understanding how blast waves propagate through the human ear is a necessary step in the development of effective hearing protection devices (HPDs). This article presents the first 3D finite element (FE) model of the human ear to simulate blast wave transmission through the ear. The 3D FE model of the human ear consisting of the ear canal, tympanic membrane, ossicular chain, and middle ear cavity was imported into ANSYS Workbench for coupled fluid-structure interaction analysis in the time domain. Blast pressure waveforms recorded external to the ear in human cadaver temporal bone tests were applied at the entrance of the ear canal in the model. The pressure waveforms near the tympanic membrane (TM) in the canal (P1) and behind the TM in the middle ear cavity (P2) were calculated. The model-predicted results were then compared with measured P1 and P2 waveforms recorded in human cadaver ears during blast tests. Results show that the model-derived P1 waveforms were in an agreement with the experimentally recorded waveforms with statistic Kurtosis analysis. The FE model will be used for the evaluation of HPDs in future studies.

引用

页码：262 / 268

页数：7

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