DEVELOPMENT OF A MATHEMATICAL MODEL FOR THE CLASS V FLEXTENSIONAL UNDERWATER ACOUSTIC TRANSDUCER SHELL
Technical rept. 1968-1969
NORTH CAROLINA STATE UNIV AT RALEIGH CENTER FOR ACOUSTICAL STUDIES
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The flextensional underwater acoustic transducer concept is presently undergoing extensive analytical evaluations. In general, the various flextensional designs can be placed in one of five different classes. This report describes an analytical model developed for the Class V flextensional underwater acoustic transducer shell. Flextensional transducer designs were originally proposed as having possible applications as sonobuoy transducers. This type of design consists of two shallow spherical shells bonded at a boundary and a thin piezoelectric disk joined at this boundary by utilizing an epoxy cement. The piezoelectric disk is isolated electrically from the two shells by removing the silver electrodes beyond the region of contact between the shells and the ceramic disk.