Measurement and modelling of the response of the cat eardrum to large static pressures

Authors

  • Hanif M. Ladak Depts. of Medical Biophysics and Electrical and Computer Engineering, University of Western Ontario, London, Ont. N6A 5C1, Canada
  • W. Robert J. Funnell Depts. of BioMedical Engineering and Otolaryngology, McGill University, Montréal, Qué. H3A 2B4, Canada
  • Willem F. Decraemer Laboratory of BioMedical Physics, University of Antwerp, Antwerp, B-2020, Belgium
  • Joris J.J. Dirckx Laboratory of BioMedical Physics, University of Antwerp, Antwerp, B-2020, Belgium

Keywords:

Computer simulation, Finite element method, Geometry, Pressure effects, Stiffness, Eardrum, Geometric nonlinearity, Posterior pars tensa, Static pressures

Abstract

A study was carried out to observe the effect of inclusion of geometric nonlinearity in an FE model. The inclusion allows simulation of the stiffening behavior of the eardrum with increasing pressure. The eardrum is modelled as being isotropic, homogeneous throughout its thickness, and uniform across its surface. The results show that the by increasing the stiffness of the superior third of the posterior pars tensa in the model has the effect of shifting the maximum inferiorly and of decreasing its magnitude.

Published

2005-09-01

How to Cite

1.
Ladak HM, Funnell WRJ, Decraemer WF, Dirckx JJ. Measurement and modelling of the response of the cat eardrum to large static pressures. Canadian Acoustics [Internet]. 2005Sep.1 [cited 2020Oct.25];33(3):74-5. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1751

Issue

Section

Proceedings of the Acoustics Week in Canada