TY - GEN
T1 - Numerical analysis of the dynamic behaviour of the ossicular human eardrum system
AU - Caminos, Luis
AU - Urquiza, Rafael
AU - Gonzalez-Herrera, Antonio
PY - 2009
Y1 - 2009
N2 - This study presents the result obtained with a numerical model developed to simulate the dynamic behavior of the human tympanic ossicular system (HTOS). The model includes the tympanic membrane, a chain of small bones (malleus, incus and stapes), the tendons and ligaments that support chain. A three-dimensional geometric model is generated using CAD tools, based on measurements previously published. The dynamic behaviour is simulated using the finite element method (FEM) with a harmonic analysis. The system response is measured with the displacement of umbo and the stapedial footplate for a sound pressure equivalent to 90 dBSPL, acting on the outer side of the eardrum in a frequency range from 200 Hz and 8, 000 Hz. The influence of different parameters in the response of the system is studied. It is the case of the Young's modulus of the tympanic membrane and the damping coefficient. Comparison with experimental results permits the validation of the model and helps to estimate these parameters and its relation to potential pathologies.
AB - This study presents the result obtained with a numerical model developed to simulate the dynamic behavior of the human tympanic ossicular system (HTOS). The model includes the tympanic membrane, a chain of small bones (malleus, incus and stapes), the tendons and ligaments that support chain. A three-dimensional geometric model is generated using CAD tools, based on measurements previously published. The dynamic behaviour is simulated using the finite element method (FEM) with a harmonic analysis. The system response is measured with the displacement of umbo and the stapedial footplate for a sound pressure equivalent to 90 dBSPL, acting on the outer side of the eardrum in a frequency range from 200 Hz and 8, 000 Hz. The influence of different parameters in the response of the system is studied. It is the case of the Young's modulus of the tympanic membrane and the damping coefficient. Comparison with experimental results permits the validation of the model and helps to estimate these parameters and its relation to potential pathologies.
UR - http://www.scopus.com/inward/record.url?scp=84871422674&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84871422674
SN - 9781615677368
T3 - 16th International Congress on Sound and Vibration 2009, ICSV 2009
SP - 156
EP - 163
BT - 16th International Congress on Sound and Vibration 2009, ICSV 2009
T2 - 16th International Congress on Sound and Vibration 2009, ICSV 2009
Y2 - 5 July 2009 through 9 July 2009
ER -