一种低旁瓣水声换能器的设计与分析

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振动与冲击 ›› 2025, Vol. 44 ›› Issue (1) : 298-304.

土木工程

一种低旁瓣水声换能器的设计与分析

张彬1，童晖*1,2，周博文1，杨道军1，黄帆1

作者信息 +

Design and analysis of a low-sidelobe underwater acoustic transducer

ZHANG Bin1, TONG Hui*1,2, ZHOU Bowen1, YANG Daojun1, HUANG Fan1

Author information +

文章历史 +

摘要

低旁瓣宽带换能器可提高声呐系统的探测精度和抗干扰能力。本文综合采用1-3型压电复合材料压电相非均匀分布技术、匹配层多模耦合技术，设计了一款低旁瓣、宽带高频水声换能器。建立了其理论计算模型与仿真模型，结合数值计算、有限元仿真分析了频率与压电相体积百分比的变化规律、旁瓣级与圆环半径的变化规律。优选设计参数，完成制备并测量该款换能器，实测结果与仿真基本一致，试验验证了该设计思路可实现低旁瓣宽带换能器。换能器实测旁瓣级-23.9dB，较常规活塞阵最大旁瓣级降低6.3dB，中心频率300kHz,发射电压响应带宽(-3dB)达150kHz。

Abstract

Low-sidelobe broadband transducers can improve the detection accuracy and anti-jamming ability of sonar system. A low-sidelobe broadband and high frequency underwater acoustic transducer is designed，which incorporates 1-3 piezoelectric composite with non-uniform distribution piezoelectric phases technology and matched layer multimode coupling technology. Theoretical calculation model and simulation model were established. The variation laws of frequency with piezoelectric phase volume percentage and sidelobe level with ring radius were analyzed by numerical calculation and finite element simulation. According to the optimized design parameters, the transducer was fabricated and measured. The measured results are in good agreement with the simulation, providing experimental validation for the feasibility of achieving the low sidelobe broadband transducer. The measured sidelobe level is -23.9dB, exhibiting reduction 6.3dB compared to conventional piston array sidelobe level. The center frequency is 300kHz, while the transmission voltage response bandwidth (-3dB) spans across 150kHz.

导出引用

张彬1, 童晖1, 2, 周博文1, 杨道军1, 黄帆1. 一种低旁瓣水声换能器的设计与分析[J]. 振动与冲击, 2025, 44(1): 298-304

ZHANG Bin1, TONG Hui1, 2, ZHOU Bowen1, YANG Daojun1, HUANG Fan1. Design and analysis of a low-sidelobe underwater acoustic transducer[J]. Journal of Vibration and Shock, 2025, 44(1): 298-304

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