耦合振动对水下圆柱壳换能器声学性能的影响。

Effects of coupled vibrations on the acoustical performance of underwater cylindrical shell transducers.

作者信息

Aronov Boris, Brown David A, Bachand Corey L

机构信息

BTech Acoustics, LLC, Acoustics Research Laboratory, Advanced Technology and Manufacturing Center, and Department of Electrical and Computer Engineering, University of Massachusetts Dartmouth, 151 Martine Street, Fall River, Massachusetts 02723, USA.

出版信息

J Acoust Soc Am. 2007 Dec;122(6):3419-27. doi: 10.1121/1.2793602.

DOI:10.1121/1.2793602

PMID:18247751

Abstract

An experimental investigation of the effects of coupled vibrations on the acoustical performance of underwater transducers made from radially polarized, thin walled, air-backed, piezoelectric cylinders as a function of their height-to-diameter aspect ratio is presented. Characteristics of the frequency response, directivity patterns, and effectiveness of the transducers are considered in comparison with analogous characteristics for the transducers comprised of mechanically separated rings, otherwise having the same geometry. Recommendations are made on the application of cylindrical piezoelectric elements with different aspect ratios for underwater transducer applications.

摘要

本文介绍了一项实验研究，该研究针对由径向极化的薄壁、空气背衬压电圆柱体制成的水下换能器，研究了耦合振动对其声学性能的影响，并将其作为高度与直径之比的函数进行分析。与由机械分离的环组成的换能器（其他方面具有相同几何形状）的类似特性相比，考虑了频率响应特性、指向性图案和换能器的有效性。针对不同纵横比的圆柱形压电元件在水下换能器应用中的应用提出了建议。