压电水声换能器的声学特性分析  

Dynamic analysis of piezoelectric underwater acoustic transducer

作　　者：余南辉[1] 范吉军[2] JaeHwan Kim HeungSoo Kim 

机构地区：[1]武汉工业学院机械工程系,武汉430023 [2]武汉工业学院数理系,武汉430023 [3]仁荷大学机械工程系

出　　处：《声学技术》2009年第2期191-195,共5页Technical Acoustics

基　　金：湖北省自然科学基金资助项目(2007ABA086)

摘　　要：压电水声换能器是一种既能作为驱动器又能作为传感器工作的水下探测装置。准确预测其在嘈杂水下环境中的声学特性对设计出坚固耐用的换能器是十分重要的。有限元方法对分析换能器在不同环境中的各种性能十分有效和实用。建立了一种Tonpilz型换能器的二维轴对称有限元模型,设计了基于有限元方法的程序,对其进行了动力学分析,包括模态分析和谐响应分析等,获得了一些声学特性。该程序分析的结果与ANSYS软件分析的结果显示出较好的吻合性。Piezoelectric underwater acoustic transducer is a kind of device for underwater detection working as not only an actuator but also a sensor. The technique of predicting acoustical characteristics of transducer is important to robust design of transducer in harsh underwater environment. Finite element methods are very powerful to characteristic analysis of transducers in different environments. Two dimensional axisymmetric finite element model of one type of Tonpilz transducer is generated and the dynamic analysis of it is conducted through a developing program based on finite element method. Some acoustic characteristics are obtained, and parts of them are compared with those from ANSYS.

关 键 词：有限元方法 压电材料 Tonpilz型换能器 声学特性 

分 类 号：TB565[交通运输工程—水声工程]