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。
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.
作者
伊子旭
莫喜平
柴勇
张运强
崔斌
YI Zixu;MO Xiping;CHAI Yong;ZHANG Yunqiang;CUI Bin(Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Engineering Technology Research Center of Ocean Acoustic Equipment,Beijing 100190,China)
出处
《应用声学》
CSCD
北大核心
2020年第5期656-660,共5页
Journal of Applied Acoustics
基金
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)。
