Considerable sharpening of basilar membrane frequency selectivity and simultaneous decreasing of phase lag can be obtained in a linear ('passive') hydromechanical three-dimensional cochlear model, if the transverse geometry of the cochlea is taken into account. Both the tuning qualities, Q10, and the phase angles at CF of some transversally inhomogeneous… (More)

The average through the section components Dy and Dx of the basilar membrane anisotropic stiffness are evaluated from Bekesy's hydrostatic and hair probe experiments. A contradiction is found between the values and the behaviour of Dy component, calculated from the hydrostatic experiment and from the hair probe. The solution of the strongly bent plate… (More)

The nonlinear correction of the cochlear partitions movement equation becomes the main part in the resonant section. In the neighbourhood of this section the periodic solution, having the drawing force frequency omega, gets the region of the non-stability in the interval (see abstract), where a is the vibration amplitude and h is the basilar membrane… (More)