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Cochlear Mechanics: Extension of the circuit model to the middle ear

Heslinga, O.L. (2013) Cochlear Mechanics: Extension of the circuit model to the middle ear. Master's Thesis / Essay, Mathematics.

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The circuit approach of the cochlea model written out by van den Raadt has been reconsidered to extend the circuit for the middle ear. The middle ear model of O'Connor and Puria has been coupled and the equations of motion are derived in the same structure. Differences in model elements of the middle ear cause singularities which prohibit the original explicit time integration to solve the equations of motion. Inspired by equivalent problems in fluid mechanics, an implicit time integration method has been chosen that resolves the problem of singularity. The original cochlea model has been rewritten in implicit structure and verified with results from the explicit version of INCAS3. The middle ear model is built with an implicit time integration and verified with results from O'Connor and Puria. After coupling of the two model parts, simulations are made to study the effect of the new model and a nonlinear damping function is implemented to show the capabilities to simulate active behaviour of the cochlea considering future research on otoacoustic emissions.

Item Type: Thesis (Master's Thesis / Essay)
Degree programme: Mathematics
Thesis type: Master's Thesis / Essay
Language: English
Date Deposited: 15 Feb 2018 07:56
Last Modified: 15 Feb 2018 07:56

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