Optimal Design of a Barrel Stave Flextensional Transducer

Abstract

The performance of a barrel stave flextensional transducer is determined by the properties of its constituent materials and the effects of many structural parameters. In most cases, the influences of these variables are not linearly independent of each other. In order to achieve optimal performance of an acoustic transducer, we have to consider the cross-coupled effects of its structural variables. The structure of a barrel stave flextensional transducer was optimized by considering all the cross-coupled effects of its structural variables in order to achieve the widest bandwidth while satisfying the requirements regarding transmitting voltage response and center frequency. The optimization process consists of finite element analysis (FEA) of the transducer performance in regard to its structural variables, statistical multiple regression analysis of the FEA results, and constrained maximization of a target function (i.e., the bandwidth) in sequence.

Design of Piezoelectric Acoustic Transducers for Underwater Applications

“…Transducers specialized for long distances are based on hollow piezoelectric ceramics and have improved output performance owing to the inverse piezoelectric effect [ 55 ]. To develop a barrel transducer for stable transmission in the deep sea, an optimization model that applies several variables was proposed [ 56 ]. Focusing on long-distance transmission for underwater communication, the Janus transducer consists of two head masses, a piezoelectric ceramic, and an aluminum cylinder.…”

“… Distribution by transducer type: ( a ) transmitting characteristics by year, ( b ) receiving characteristics by year, ( c ) transmitting response by size, ( d ) receiving response by size, ( e ) transmitting by array, ( f ) receiving by array, ( g ) transmitting response affected by piezoelectric material composition, and ( h ) receiving response affected by piezoelectric material composition [ 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 …”

Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

“…Because the desired frequency, frequency band, and size depend on the application, the design of underwater acoustic transducers is still required, and new design schemes are being reported. [529][530][531][532] …”

New Design of the Kerfs of an Ultrasonic Two-Dimensional Array Transducer to Minimize Cross-Talk

“…The target function corresponded to maximizing the signal-to-noise level. The searching process was carried out by means of the genetic algorithm: 14,15) Target function: maximize T ¼ jsensitivity À cross-talk levelj; ð3Þ subject to: À3 dB acceptance angle ! 44:4…”