蝙蝠喉部发声组织建模及发声机理  

Modeling and vocalization mechanism of bat throat vocalization

作　　者：何为凯 闫栋梁 杨富春[2] 高翔 张莹 马昕[3] 刘慕萱 徐东宇[4] HE Weikai;YAN Dongliang;YANG Fuchun;GAO Xiang;ZHANG Ying;MA Xin;LIU Muxuan;XU Dongyu(School of Aeronautics,Shandong Jiaotong University,Jinan 250357,China;School of Mechanical Engineering,Shandong University,Jinan 250061,China;School of Information Science and Engineering,Shandong University,Qingdao 266237,China;Shandong Provincial Key Laboratory of Construction Materials Preparation and Measurement,University of Jinan,Jinan 250022,China;University of Jinan,Shandong Provincial Key Laboratory of Network Based Intelligent Computing,Jinan 250022,China)

机构地区：[1]山东交通学院航空学院,济南250357 [2]山东大学机械工程学院,济南250061 [3]山东大学信息科学与工程学院,青岛266237 [4]济南大学山东省建筑材料制备与计量重点实验室,济南250022 [5]济南大学山东省网络智能计算重点实验室,济南250022

出　　处：《应用声学》2024年第2期415-420,共6页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(12174225);中国博士后面上项目(批准号2021M701405);山东省教育厅青创计划(2020KJN002);济南市博士后创新项目。

摘　　要：建立蝙蝠发声组织模型对超声机理研究及在智能设备的应用具有重要意义。根据蝙蝠喉部发声组织结构特点,通过有限元方法构建了蝙蝠的3种不同发声组织模型,分析了尺寸、材料力学参数、组织结构和张力4个因素对发声组织特征频率的影响。结果表明,如果用人类声带,按比例缩小构建蝙蝠喉部组织模型,蝙蝠无法发出超声波。构建组织结构含甲状软骨和声带的半鼓状模型和只含声带的条状模型,两种模型的特征频率相近且在合理的参数域内均无法达到超声范围。而含膜条状模型的特征频率可以通过张力进行超声频率的调节,这与文献的实验结果一致。因此,可基于含膜条状模型对蝙蝠喉管发声组织进行建模及其发声机理研究。The establishment of a bat vocal tissue model is of great significance for the study of ultrasound mechanism and its application in smart devices.In this paper,three different vocal tissue models of bats were constructed by finite element method according to the characteristics of the vocal tissue structure of bat throat,and the influence of four factors of size,material mechanical parameters,tissue structure and tension on the characteristic frequency of vocal tissue were analyzed.The results showed that if a human vocal cord was used to scale down a bat’s throat tissue model,the bat was unable to emit ultrasound.A semi-drum model with thyroid cartilage and vocal cords and a strip model with only vocal cords were constructed.The eigenfrequencies of the two models are similar and cannot reach the ultrasonic range within a reasonable parameter range.The characteristic frequency of the membrane-containing strip model can be adjusted by tension,which is consistent with the experimental results in the literature.Therefore,the vocal organization of the larynx of bats can be modeled and the mechanism of vocalization can be studied based on the membrane-containing strip model.

关 键 词：蝙蝠 超声 声带 有限元 特征频率 

分 类 号：O429[理学—声学]