User manual for ATILA, a finite-element code for modeling piezoelectric transducers
By: Jean-Noel Decarpigny, and Jean-Claude Debus
Contributors: Debus, Jean-Claude; Naval Postgraduate School (U.S.). Dept. of Physics
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1987
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Subjects: SONAR; NUMERICAL ANALYSIS; PIEZOELECTRIC   TRANSDUCERS; FINITE ELEMENT ANALYSIS
Other titles: NPS-61-87-007.
Description: This manual for the user of the finite-element code ATILA provides instruction for entering      information and running the code on a VAX computer. The manual does not include the      code. The finite element code ATILA has been specifically developed to aid the design of      piezoelectric devices, mainly for sonar applications. Thus, it is able to perform the model      analyses of both axisymmetrical and fully three-dimensional piezoelectric transducers. It      can also provide their harmonic response under radiating conditions: nearfield and farfield      pressure, transmitting voltage response, directivity pattern, electrical impedance, as well as      displacement field, nodal plane positions, stress field and various stress criteria...Its      accuracy and its ability to describe the physical behavior of various transducers (Tonpilz      transducers, double headmass symmetrical length expanders, free flooded rings,      flextensional transducers, bender bars, cylindrical and trilaminar hydrophones...) have been      checked by modelling more than twenty different structures and comparing numerical and      experimental results.
Notes: Title from cover.

"NPS-61-87-007."

"August 1987."

AD A185 948.

Includes bibliographical references.

aq/aq cc:9116 05/18/98