[Modelling of the geometry of the external auditory canal by the finite elements method].
The aim of this work is to design a computerized 3-D model of the human external ear, based on the finite elements method. The method consists to splitting a specific special area in a simple element net connected between themselves by nodes. The elements are associated to equations that define their physical characteristics. We realize a coupling with the middle ear model to know the behaviour of both systems with an acoustic excitation without the use of real measures or biological models. The model simulates the acoustic and biomechanic characteristics of the human external auditory canal. The development of a computerized model allows a better knowledge of the external ear mechanic-acoustic behaviour, this makes easier understand the physiology of the human external ear.
Hospital Universitario Río Hortega, Universidad de Valladolid. lvallejoval@telefonica.net
L A
LA
Vallejo
V M
VM
Delgado
A
A
Hidalgo
E
E
Gil-Carcedo
L M
LM
Gil-Carcedo
F
F
Montoya
D000158:Acoustic Impedance Tests / Q000379:methods*; D004424:Ear Canal / Q000033:anatomy & histology* / Q000502:physiology; D006801:Humans; D021621:Imaging, Three-Dimensional; D008953:Models, Anatomic