Modal analysis of the human tympanic membrane of middle ear using the finite-element method
This paper provides a theoretical vibrations model of tympanic membrane constructed and solved using the finite-element method. This method is an appropriate tool to analyze the middle-ear vibrations because it enables modeling in details the complicated shape of the middle-ear and, moreover, and...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2014-01-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/1318 |
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| Summary: | This paper provides a theoretical vibrations model of tympanic membrane constructed and
solved using the finite-element method. This method is an appropriate tool to analyze the
middle-ear vibrations because it enables modeling in details the complicated shape of the
middle-ear and, moreover, and allows to calculate the distribution of vibrations stimulated by
sinusoidal signals. The number of the 3-dimensional tetrahedral elements was assumed to be
591 and material properties used were based on data available in the literature. This model
has a uniform density of $1.2 \cdot 10^3$ kg/m$^3$, an area of $70\cdot 10^{−6}$ m$^2$, a depth of $1.54 \cdot 10^{−3}$ m
at the umbo, a mean thickness of $1.32 \cdot 10^{−4}$ m, and a Poisson’s ratio 0.3. Constrains were
accomplished by two different springs, linear and torsional. The results obtained are compared
with their counterparts scattered in the literature. |
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| ISSN: | 0137-5075 2300-262X |