流体动力式次声换能器机电类比分析与试验研究  

Electromechanical analogy analysis and experimental study of hydrodynamic infrasound projector

作　　者：吴仪 范威 杨帅[1] 杨广胜 吴大转[1] WU Yi;FAN Wei;YANG Shuai;YANG Guangsheng;WU Dazhuan(College of Energy Engineering,Zhejiang University,Hangzhou 310027,Zhejiang,China;Science and Technology on Underwater Acoustic Antagonizing Laboratory,Shanghai 201203,China)

机构地区：[1]浙江大学能源工程学院,浙江杭州310027 [2]水声对抗技术重点实验室,上海201203

出　　处：《声学技术》2023年第3期397-403,共7页Technical Acoustics

基　　金：水声对抗技术重点实验室开放基金项目资助(JCKY2020207CH01)。

摘　　要：流体动力式换能器相较于其他形式的换能器在产生低频声音方面具有更大的优势,为了预测流体动力式换能器的声学性能,提出一种基于机电类比的流体动力式换能器等效电路模型。设计并搭建流体动力式换能器试验台,将机电类比模型模拟结果与空气中进行的试验结果进行了比较。结果显示,该机电类比模型在空气中1~4 Hz频率范围内的声源级预报值与实测值的误差低于10%,证明了机电类比分析模型的有效性和可靠性。Hydrodynamic infrasound projectors have great advantage in generating low frequency acoustic waves over other acoustic transducers.An electromechanical analogy model is proposed to simulate the performance of the hydrodynamic infrasound projector.And,a test bench of the hydrodynamic infrasound projector is designed and fabricated.The simulation results of electromechanical analog model are compared with the experimental results in air.The results show that the error between the predicted and measured sound source levels of the electromechanical analogy model at 1-4 Hz is less than 10%,which proves the validity and reliability of the electromechanical analogy model.

关 键 词：流体动力式 次声换能器 机电类比 液压系统 

分 类 号：TB565.1[交通运输工程—水声工程]