Accession Number : ADA323378

Title :   Finite Element Modeling of Transducers for Undersea Ultrasonic Imaging.

Descriptive Note : Rept. for 17 May 94-26 Apr 96,

Corporate Author : WEIDLINGER ASSOCIATES NEW YORK

Personal Author(s) : Wojcik, Gregory ; Vaughan, David ; Abboud, Najib ; Mould, John ; Nikodym, Lisa

PDF Url : ADA323378

Report Date : APR 1996

Pagination or Media Count : 29

Abstract : Under ONR contract NOOO14-94-C-OO47 Weidlinger Associates participated in a TTCP collaboration among United States, United Kingdom, and Canadian researchers on design and construction of a composite transducer array for undersea ultrasonic imaging. Our primary objective was to collaborate on finite element modeling techniques with Prof. Gordon Hayward's Ultrasonics Research Group at the University of Strathclyde. Specifically, we provided multiple licenses of our time domain finite element code, PZFlex, trained one of their graduate students at our office, developed enhanced analysis capabilities within the code framework, and helped apply the modeling code for a better understanding of transducers and transducer materials used in undersea ultrasonic imaging systems. In addition, to support the overall TTCP collaboration, we supplied limited numerical modeling for the other groups involved, specifically, Fugro-UDi, Ltd., Material Systems, Inc., Ultrasound Solutions, and the Royal Military College of Canada. These efforts are described herein, primarily through a technical paper and abstracts from briefings and meetings held three time per year (two TTCP group meetings and one ONR Review meeting).

Descriptors :   *ELECTROACOUSTIC TRANSDUCERS, MATHEMATICAL MODELS, IMAGE PROCESSING, FINITE ELEMENT ANALYSIS, MINE DETECTION, ULTRASONICS, ACOUSTIC ARRAYS, TIME DOMAIN.

Subject Categories : Acoustic Detection and Detectors
      Undersea and Antisubmarine Warfare

Distribution Statement : APPROVED FOR PUBLIC RELEASE