水下无人系统学报2023，Vol.31Issue(6)：958-965,8.DOI:10.11993/j.issn.2096-3920.2022-0084
基于声-固-压电耦合的纵振水声换能器工艺研究
Research on Process of Longitudinal Vibration Underwater Acoustic Transducer Based on Acousto-Solid-Piezoelectric Coupling
耿鹏飞 1田杜养 1刘小光 1程彩霞 1冀邦杰1
作者信息
- 1. 中船西安东仪科工集团有限公司,陕西西安, 710065
- 折叠
摘要
Abstract
Currently,the design process of longitudinal vibration underwater acoustic transducers only focuses on ideal conditions,but the production process has a certain impact on the relevant electroacoustic performance of the underwater acoustic transducers.In this paper,finite element analysis software was used to establish finite element models for ceramic ring coating,ceramic ring assembly coaxiality,and pre-tensioning assembly to simulate and analyze the electroacoustic performance of the models.By comparing the results,it is found that the adhesive bonding of the transducer by filling the small gaps between the end faces of each component can improve the overall stiffness of the piezoelectric ceramic ring,thereby increasing the overall elastic modulus and causing an increase in resonance frequency.The resonance frequency of the transducer decreases as the thickness of the adhesive layer increases,and it increases as the thickness of the residual glue layer increases.Transducers with high coaxiality of ceramic ring assembly have higher conductivity at the corresponding frequency and a smoother voltage response curve,with significantly reduced burrs.As the pre-tensioning force applied to the pre-tensioning bolt increases,the first and second resonance frequencies of the transducer with a matching layer increase,and the corresponding conductivity and voltage response change.After a water pool test,the simulation results are compared with the experimental results,and the trend of the test results is consistent with that of the simulation results.关键词
匹配层换能器/陶瓷环涂胶粘接/预紧装配/同轴度/有限元方法/电声性能Key words
transducer with a matching layer/adhesive bonding of ceramic ring/pre-tensioning assembly/coaxiality/finite element method/electroacoustic performance分类
军事科技引用本文复制引用
耿鹏飞,田杜养,刘小光,程彩霞,冀邦杰..基于声-固-压电耦合的纵振水声换能器工艺研究[J].水下无人系统学报,2023,31(6):958-965,8.
