Research and fabrication of bimetallic plate transducer based on finite element analysis

• Published in: Materials & design Vol. 240; p. 112870
• Main Authors: Lan, Yudan, Xia, Lili, Wang, Hongwei, Yu, Zhaoxian, Shao, Zhen, Jing, Sujie
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.04.2024; Elsevier
• Subjects: Bimetallic plate; Finite element; High sensitivity; Piezoelectric material; Piezoelectric material; Bimetallic plate; High sensitivity; Finite element
• ISSN: 0264-1275; 1873-4197
• DOI: 10.1016/j.matdes.2024.112870

[Display omitted] •A highly sensitive sensitive element structure is proposed.•It consists of an aluminum plate, a piezoelectric ceramic array and an iron plate.•Geometry and material selection were investigated using finite element simulations.•The reception sensitivity of the transducer can be effectively improved. By enhancing the type 1–3 piezoelectric composite material, a highly sensitive hydroacoustic transducer sensitive element structure is suggested for uses in sonar systems, such as small target identification and fine imaging. A lower metal plate, a piezoelectric ceramic column array, and an upper metal plate make up the piezoelectric material structure. The resonance frequency of the bimetal plate type piezoelectric ceramic array material was theoretically analyzed, the sensitive element geometry of the bimetal plate piezoelectric material was studied using finite element simulation, the material choice for the metal plate affected the material’s performance, and the parameters of each size of the sensitive element were determined. These findings served as a guide for the production of a highly sensitive hydroacoustic transducer, as well as the structure of the piezoelectric material transducer in the water performance test. Results indicate that the structure transducer has a maximum transmit voltage response of 178 dB and a −3 dB bandwidth of approximately 25 kHz; the transducer may be efficiently tuned for a maximum receive sensitivity of −172 dB.