Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849183
