Page 14 - 《应用声学》2020年第5期

第 39 卷 第 5 期 Vol. 39, No. 5
2020 年 9 月 Journal of Applied Acoustics September, 2020

⋄ 研究报告 ⋄

宽体液腔Janus-Helmholtz换能器 ∗

伊子旭 1,2,3 莫喜平 1† 柴 勇 1,3 张运强 1,3 崔 斌 1,3

(1 中国科学院声学研究所 北京 100190)
(2 中国科学院大学 北京 100049)
(3 北京海洋声学装备工程技术研究中心 北京 100190)

摘要：该文使用有限元方法对宽体液腔 Janus-Helmholtz(JH) 换能器进行了仿真分析，得出了壳体宽度拓展
增量对 JH 换能器工作性能的影响规律。使用三维建模的方式，分析了连接部分对换能器性能的影响及宽体壳
体的模态，证明了三维建模的必要性。依据仿真优化结构设计了一款宽体液腔 JH 换能器并进行了湖上测试。
最终测试结果与仿真结果有很好的一致性，相较直筒 JH 换能器其谐振频率降低 300 Hz，发射电压响应最高可
达 144 dB。
关键词：Janus-Helmholtz 换能器；宽体壳体；有限元分析；振动模态
中图法分类号: TB565 文献标识码: A 文章编号: 1000-310X(2020)05-0656-05
DOI: 10.11684/j.issn.1000-310X.2020.05.002

The Janus-Helmholtz transducer with dilated cavity

YI Zixu 1,2,3 MO Xiping 1 CHAI Yong 1,3 ZHANG Yunqiang 1,3 CUI Bin 1,3

(1 Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China)
(2 University of Chinese Academy of Sciences, Beijing 100049, China)
(3 Beijing Engineering Technology Research Center of Ocean Acoustic Equipment, Beijing 100190, China)

Abstract: In this paper, the finite element method is used to simulate the Janus-Helmholtz (JH) transducer
with dilated cavity, and the influence law of shell width increment on the working performance of JH transducer
is obtained. By means of three-dimensional modeling, the influence of the connecting part on the performance of
the transducer and the mode of the dilated shell are analyzed, and the necessity of three-dimensional modeling
is demonstrated. A JH transducer with dilated cavity was designed according to the simulation optimization
structure. The final experiment results are in good agreement with the simulation results. Compared with the
JH transducer, the resonant frequency is reduced by 300 Hz, and the transmitting voltage response is up to
144 dB.
Keywords: Janus-Helmholtz transducer; Dilated cavity; Finite element analysis; Mode of vibration

2020-01-06 收稿; 2020-03-31 定稿
国家自然科学基金项目 (11874387), 国家自然科学基金青年科学基金项目 (11804367)
∗
作者简介: 伊子旭 (1993– ), 男, 山东济南人, 博士研究生, 研究方向: 水声换能器。
† 通信作者 E-mail: moxp@mail.ioa.ac.cn