Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System
The difficulty to estimate the mechanical properties of the tympanic membrane (TM) is a limitation to understand the sound transmission mechanism. In this paper, based on finite element calculations, the sensitivity of the human hearing system to these properties is evaluated. The parameters that de...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2018/1736957 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832560741746475008 |
|---|---|
| author | L. Caminos J. Garcia-Manrique A. Lima-Rodriguez A. Gonzalez-Herrera |
| author_facet | L. Caminos J. Garcia-Manrique A. Lima-Rodriguez A. Gonzalez-Herrera |
| author_sort | L. Caminos |
| collection | DOAJ |
| description | The difficulty to estimate the mechanical properties of the tympanic membrane (TM) is a limitation to understand the sound transmission mechanism. In this paper, based on finite element calculations, the sensitivity of the human hearing system to these properties is evaluated. The parameters that define the bending stiffness properties of the membrane have been studied, specifically two key parameters: Young’s modulus of the tympanic membrane and the thickness of the eardrum. Additionally, it has been completed with the evaluation of the presence of an initial prestrain inside the TM. Modal analysis is used to study the qualitative characteristics of the TM comparing with vibration patterns obtained by holography. Higher-order modes are shown as a tool to identify these properties. The results show that different combinations of elastic properties and prestrain provide similar responses. The presence of prestrain at the membrane adds more uncertainty, and it is pointed out as a source for the lack of agreement of some previous TM elastic modulus estimations. |
| format | Article |
| id | doaj-art-7d0a8c2f2a5c449a8738e6bca4e26426 |
| institution | Kabale University |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-7d0a8c2f2a5c449a8738e6bca4e264262025-02-03T01:26:50ZengWileyApplied Bionics and Biomechanics1176-23221754-21032018-01-01201810.1155/2018/17369571736957Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing SystemL. Caminos0J. Garcia-Manrique1A. Lima-Rodriguez2A. Gonzalez-Herrera3Departamento de Ingeniería Mecánica, Universidad Nacional Experimental del Táchira, San Cristobal, VenezuelaDepartamento de Ingeniería Civil, de Materiales y Fabricación, Universidad de Málaga, Malaga, SpainDepartamento de Ingeniería Civil, de Materiales y Fabricación, Universidad de Málaga, Malaga, SpainDepartamento de Ingeniería Civil, de Materiales y Fabricación, Universidad de Málaga, Malaga, SpainThe difficulty to estimate the mechanical properties of the tympanic membrane (TM) is a limitation to understand the sound transmission mechanism. In this paper, based on finite element calculations, the sensitivity of the human hearing system to these properties is evaluated. The parameters that define the bending stiffness properties of the membrane have been studied, specifically two key parameters: Young’s modulus of the tympanic membrane and the thickness of the eardrum. Additionally, it has been completed with the evaluation of the presence of an initial prestrain inside the TM. Modal analysis is used to study the qualitative characteristics of the TM comparing with vibration patterns obtained by holography. Higher-order modes are shown as a tool to identify these properties. The results show that different combinations of elastic properties and prestrain provide similar responses. The presence of prestrain at the membrane adds more uncertainty, and it is pointed out as a source for the lack of agreement of some previous TM elastic modulus estimations.http://dx.doi.org/10.1155/2018/1736957 |
| spellingShingle | L. Caminos J. Garcia-Manrique A. Lima-Rodriguez A. Gonzalez-Herrera Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System Applied Bionics and Biomechanics |
| title | Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System |
| title_full | Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System |
| title_fullStr | Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System |
| title_full_unstemmed | Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System |
| title_short | Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System |
| title_sort | analysis of the mechanical properties of the human tympanic membrane and its influence on the dynamic behaviour of the human hearing system |
| url | http://dx.doi.org/10.1155/2018/1736957 |
| work_keys_str_mv | AT lcaminos analysisofthemechanicalpropertiesofthehumantympanicmembraneanditsinfluenceonthedynamicbehaviourofthehumanhearingsystem AT jgarciamanrique analysisofthemechanicalpropertiesofthehumantympanicmembraneanditsinfluenceonthedynamicbehaviourofthehumanhearingsystem AT alimarodriguez analysisofthemechanicalpropertiesofthehumantympanicmembraneanditsinfluenceonthedynamicbehaviourofthehumanhearingsystem AT agonzalezherrera analysisofthemechanicalpropertiesofthehumantympanicmembraneanditsinfluenceonthedynamicbehaviourofthehumanhearingsystem |