Dynamic properties of human tympanic membrane based on frequency-temperature superposition.
Dynamic properties of human tympanic membrane based on frequency-temperature superposition.
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DOI：
10.1007/s10439-012-0624-2
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发表时间：
2013-01
影响因子：
3.8
通讯作者：
Gan, Rong Z.
中科院分区：
文献类型：
--
作者：
Zhang, Xiangming;Gan, Rong Z.
人鼓膜（TM）将耳道中的声音传递成中耳中的听小骨的机械振动。TM的动态特性直接影响中耳的传递函数。TM的静态或准静态力学性能在文献中有报道，但TM在听觉频率范围内的动态性能非常有限。本文提出了一种利用动态力学分析仪（DMA）测量人体TM动态特性的新方法。测试在1至40 Hz的频率范围内在三种不同温度下进行：5° C、25° C和37°C。应用频率-温度叠加将测试频率范围扩展到更高的水平（至少3800 Hz）。采用广义线性固体模型描述TM的本构关系。储能模量E'和损耗模量E”从11个试样获得。平均储能模量在1 Hz下为15.1 MPa，在3800 Hz下为27.6 MPa。平均损耗模量在1 Hz下为0.28 MPa，在3800 Hz下为4.1 MPa。结果表明，频率-温度叠加法是研究耳部软组织动态特性的一种可行方法。在这项研究中获得的人体TM的动态特性提供了一个更好的描述耳组织的阻尼行为。该特性可以被转换到人耳的有限元（FE）模型中，以代替Rayleigh型阻尼。这里报告的数据有助于中耳的生物力学，并提高人耳有限元模型的准确性。
The human tympanic membrane (TM) transfers sound in the ear canal into the mechanical vibration of the ossicles in the middle ear. The dynamic properties of TM directly affect the middle ear transfer function. The static or quasi-static mechanical properties of TM were reported in the literature, but the dynamic properties of TM over the auditory frequency range are very limited. In this paper, a new method was developed to measure the dynamic properties of human TM using the Dynamic-Mechanical Analyzer (DMA). The test was conducted at the frequency range of 1 to 40 Hz at three different temperatures: 5°, 25° and 37°C. The frequency-temperature superposition was applied to extend the testing frequency range to a much higher level (at least 3800 Hz). The generalized linear solid model was employed to describe the constitutive relation of the TM. The storage modulus E’ and the loss modulus E” were obtained from 11 specimens. The mean storage modulus was 15.1 MPa at 1 Hz and 27.6 MPa at 3800 Hz. The mean loss modulus was 0.28 MPa at 1 Hz and 4.1 MPa at 3800 Hz. The results show that the frequency-temperature superposition is a feasible approach to study the dynamic properties of the ear soft tissues. The dynamic properties of human TM obtained in this study provide a better description of the damping behavior of ear tissues. The properties can be transferred into the finite element (FE) model of the human ear to replace the Rayleigh type damping. The data reported here contribute to the biomechanics of the middle ear and improve the accuracy of the FE model for the human ear.
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影响因子：
3.8
作者：
RADEBAUGH, GW;SIMONELLI, AP
通讯作者：
SIMONELLI, AP
DOI：
10.1115/1.2838034
发表时间：
2008-02-01
影响因子：
1.7
作者：
Huang, Gang;Daphalapurkar, Nitin P.;Lu, Hongbing
通讯作者：
Lu, Hongbing
影响因子：
2.4
作者：
Fay, J;Puria, S;Steele, C
通讯作者：
Steele, C
影响因子：
1.1
作者：
Peters, GWM;Meulman, JH;Sauren, AAHJ
通讯作者：
Sauren, AAHJ
影响因子：
3.8
作者：
Cheng, Tao;Dai, Chenkai;Gan, Rong Z.
通讯作者：
Gan, Rong Z.