Virtual prototyping of cymbal-based underwater sound projector panels

Author

Powell, D.J. ; Reynolds, P. ; Tressler, J. ; Wojcik, G.L. ; Howarth, T.R.

Author_Institution

Weidlinger Assoc. Inc., Los Altos, CA, USA

Volume

2

fYear

1999

fDate

1999

Firstpage

1061

Abstract

The Naval Research Laboratory is designing and prototyping ultra-compact, low frequency, high output sound projector panels for shallow water applications. The projectors are based on a sandwich composition of PZT-driven cymbal flextensionals between stiff cover plates. Laser Doppler vibrometer data of early 0.25-inch panel prototypes showed high displacements in air at frequencies below 1 kHz, and underwater testing yielded Q-2 resonances in the 2 kHz band. This talk presents efforts to more quickly advance from experimental prototypes to tailored designs, using PZFlex finite element modeling-virtual prototyping-to provide a better understanding of overall behavior, conduct quantitative parameter studies, and identify useful cymbal and panel arrangements

Keywords

acoustic transducers; finite element analysis; lead compounds; piezoelectric materials; piezoelectric transducers; underwater acoustic propagation; 0.25 in; 1 kHz; 2 kHz; PZT; PZT-driven cymbal flextensionals; PbZrO3TiO3; cymbal-based underwater sound projector panels; laser Doppler vibrometer data; shallow water applications; stiff cover plates; ultra-compact low frequency high output sound projector panels; virtual prototyping; Actuators; Finite element methods; Frequency; Laboratories; Piezoelectric materials; Prototypes; Resonance; Steel; Underwater acoustics; Virtual prototyping;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE

Conference_Location

Caesars Tahoe, NV

ISSN

1051-0117

Print_ISBN

0-7803-5722-1

Type

conf

DOI

10.1109/ULTSYM.1999.849183

Filename

849183