低频大功率Janus-Helmholtz换能器的设计  

Design of low-frequency high-power Janus-Helmholtz underwater acoustic transducer

作　　者：桑永杰 蓝宇 

机构地区：[1]哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨150001

出　　处：《陕西师范大学学报（自然科学版）》2013年第6期21-26,共6页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(11304057);中央高校基本科研业务费专项资金项目(HEUCF130510)

摘　　要：阐述了Janus-Helmholtz换能器宽带工作的机理,运用有限元软件ANSYS对Janus-Helmholtz换能器的结构参数进行优化设计,研究了腔体结构尺寸对工作带宽等电声参数的影响规律.设计制作了一个工作带宽为500～2 000 Hz的试验样机.水池测试结果显示,仿真结果和实验结果基本相符.验证了有限元仿真结果的正确性,表明有限元方法是研究液腔振动和设计宽带Helmholtz换能器的可信手段.The mechanism for broadband operation of Janus-Helmholtz transducer are described,the structure parameters of Janus-Helmholtz transducer are optimized using finite element software ANSYS and variation on operating bandwidth with the size of cavity wall are investigated.An experimental prototype of bandwidth of 500Hz-2000Hz is produced.Test results show that the simulation results agree with the experiment results.It shows that the finite element method is a trusted means on the study of cavity vibration and the design of broadband Helmholtz transducer.

关 键 词：液腔 Janus-Helmholtz换能器 有限元优化设计 工作带宽 深水 

分 类 号：TB565.1[交通运输工程—水声工程]