Animations of the tympanic membrane motion at different frequencies.

The three animantions in figure 1 show tympanic membrane motion at respectively 1 kHz, 7 kHz and 16 kHz. Note that the displacements are highly enlarged in the z-direction. The displacement patterns were calculated in a finite element model in Comsol, in which the tympanic membrane was modeled as a visco-elastic material; more details about the modeling will be published soon.
 

tm_01khz.gif

  (a) 1 kHz (z-scale enlargement: 6⋅103)

tm_07khz.gif

(b) 7 kHz (z-scale enlargement: 1⋅105)

tm_16khz.gif

 (c) 16 kHz (z-scale enlargement: 8⋅105)

Figure 1: Animations of the tympanic membrane motion at different frequencies.