人体整耳传声有限元数值模拟  

Finite Element Simulation of Human Ears

作　　者：姚海峰[1] 刘后广[1] 周雷[2] 饶柱石[3] 黄新生[2] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]复旦大学附属中山医院耳鼻喉科,上海200032 [3]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《噪声与振动控制》2016年第2期61-64,83,共5页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51305442);江苏省自然科学基金资助项目(BK20130194);博士后特别资助项目(2015T80597)

摘　　要：由于人耳的复杂几何形态、超微结构特性,很难通过实验测量其动态响应,所以建立精确有限元模型对研究人耳声音传导特性有非常重要的作用。而现有人耳模型中耳蜗部分多没有考虑其内部两腔体积不对称。在原有所建人体外耳、中耳力学模型基础上,参考耳蜗尺寸实验测量数据,建立考虑耳蜗两腔不对称的整耳模型。并在外耳道施加90 d B的声压,利用有限元软件对模型进行谐响应分析。最后,分别通过镫骨底板位移频响、鼓膜脐部位移频响、镫骨速度传递函数、耳蜗输入阻抗的仿真结果数据与国外实验测量数据进行对比,从而验证所建模型的可靠性。Due to the complexity and tiny structure of human ears, it is difficult to carry out the experiment for measuring their dynamic response. In this paper, a human ear finite element model, which considers the two cavity volume’s asymmetry of its cochlea, was established. Then, a sound pressure of 90 dB was applied to the entrance of the external ear canal, and a harmonic analysis was carried out. Finally, the validity of this model was confirmed by comparing the model-predicted results, which are the cochlear input impedance and the motions of the tympanic membrane and stapes, with published measurement data for human temporal bones. The result shows that the model is reasonable in predicting the biomechanics behavior of human ears.

关 键 词：振动与波 中耳 耳蜗 前庭阶 鼓阶 有限元建模 

分 类 号：Q62[生物学—生物物理学]