一种新的二维耳蜗模型

A New Two-Dimensional Cochlear Model

本文与传统的把耳蜗流体视为理想流体的观点不同,而是把耳蜗流体视为实际的粘性流体,并根据粘性流体力学理论获得了一组耳蜗方程。本文对传统理论中的边界条件做了更加合理的调整之后,采用不同的解法,解出了该耳蜗方程,从面建立了一种新的二维耳蜗模型。计算结果表明,本模型与传统的二维耳蜗模型相比,具有结构简单,运算量低的特点,此外,本模型的频率特性比传统模型的频率特性也更加接近Rhode在鼠猴耳蜗中所测得的实际耳蜗频率特性。

In this paper, cochlear fluid is considered as actual viscous fluid other than ideal fluid which is often used in traditional cochlear model. A set of cochlear equations are obtained based on the theory of viscous fluid mechanics. By modifying the traditional boundary conditions and using the different solutions, we establish a new two-dimensional cochlear model. Compared with the traditional cochlear model, this model is much simpler in structure and faster in computation, frequency responses of the new model is also proved to be more consistent with those derived from squirrel monkeys by Rhode et al.