文章摘要
张振雨,王艳,陈光华.一款低频Janus-Helmholtz顺性腔换能器[J].声学技术,2016,35(5):479~484
一款低频Janus-Helmholtz顺性腔换能器
A low frequency Janus-Helmholtz compliant cavity transducer
投稿时间:2016-02-11  修订日期:2016-04-28
DOI:10.16300/j.cnki.1000-3630.2016.05.017
中文关键词: 顺性腔换能器  JH换能器  亥姆霍兹谐振腔  ATILA有限元仿真
英文关键词: compliant cavity transducer  Janus-Helmholtz transducer  compliant tube  Helmholtz resonator  ATILA finite element simulation
基金项目:
作者单位E-mail
张振雨 上海船舶电子设备研究所, 上海 201108 15221730001@163.com 
王艳 上海船舶电子设备研究所, 上海 201108  
陈光华 上海船舶电子设备研究所, 上海 201108  
摘要点击次数: 893
全文下载次数: 1408
中文摘要:
      Janus-Helmholtz(JH)顺性腔换能器是在传统的JH换能器腔内加入顺性管堆,通过调节占空比实现谐振频率及带宽的控制。在“顺性腔”的设计中采用了压缩系数为3.2×10-8 Pa-1的顺性管,通过ATILA仿真软件对Janus-Helmholtz顺性腔换能器在不同占空比下的声发射性能进行预计且与测试结果进行对比,发现在占空比为12%时,可在300~700 Hz的频带内实现190 dB的声源级,且可实现600 Hz以下频段全向辐射。
英文摘要:
      The Janus-Helmholtz compliant cavity transducer is made up of conventional JH transducer inserting compliant tubes, so the resonance frequency and bandwidth can be controlled by adjusting duty ratio. A kind of compliant tubes with a compressibility coefficient of 3.2e-8 is taken into the design of compliant cavity. Some transmitting performances of the Janus-Helmholtz compliant cavity transducer are estimated by ATILA finite element simulation, the results from which are compared with testing ones. It is shown that the level of sound pressure is achieved up to 190 dB in the frequency band from 300 Hz to 700 Hz and the directivity is omnidirectional below 600 Hz, the corresponding duty ratio is 12%.
查看全文   查看/发表评论  下载PDF阅读器
关闭