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Finite Element Analysis of Sound Transfer Characteristics for Middle Ear

유한요소 모델을 이용한 중이의 소리전달 특성 해석

  • 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.)
  • 갈영민 (동의대학교 기계공학과) ;
  • 백무진 (인제대학교 해운대 백병원 이비인후과) ;
  • 이두호 (동의대학교 기계공학과)
  • Received : 2011.04.19
  • Accepted : 2011.05.17
  • Published : 2011.12.01

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

Acknowledgement

Supported by : 한국 연구재단

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