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http://dx.doi.org/10.3795/KSME-A.2011.35.12.1563

Finite Element Analysis of Sound Transfer Characteristics for Middle Ear  

Gal, Young-Min (Dept. of Mechanical Engineering, Dong-eui Univ.)
Baek, Moo-Jin (Dept. of Otolaryngology Head and Neck Surgery, Inje University Haeundae Paik Hospital)
Lee, Doo-Ho (Dept. of Mechanical Engineering, Dong-eui Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.12, 2011 , pp. 1563-1571 More about this Journal
Abstract
In this study, we developed a finite element model of the human middle ear has been developed to calculate itsfor sound transfer characteristics calculation. We usedThe geometric data forof ossicles, obtained byfrom micro-CT scanning, was used in order to develop the middle- ear FE model. A right- side temporal bone of a Korean cadaver was used for the micro-CT scanning. The developed FE model includes three ossicles, the tympanic membrane, ligaments, and muscles. We calculated theA sound transfer function from the tympanic membrane to the stapes footplate was calculated. The sound transfer function calculated vias of the FE model shows good agreement with measured responses over the 10- kHz frequency band. To measureidentify the sensitivityies of the middle- ear function due to material property variation, we studied several parameters studies have been fulfilled using the middle ear FE model. TAs a result the stiffness property of the incudostapedial joint had the greatest influence onwas the most influential to the middle- ear sound transfer function among the parameters.
Keywords
Middle Ear; Finite Element Model; Sound Transfer Function; Micro CT; Ossicles;
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