Accession Number : AD0726726

Title :   Development of a Finite Element Model for the Class V Flextensional Underwater Transducer Shell.

Descriptive Note : Technical rept.,

Corporate Author : NORTH CAROLINA STATE UNIV RALEIGH DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s) : Georgopoulos,George ; Royster,Larry H.

Report Date : JUL 1971

Pagination or Media Count : 23

Abstract : A Finite Element Model is developed for the Class 5 Flextensional Underwater Transducer Shell for various end boundary conditions. A doubly curved axisymmetric spherical shell element is utilized in order to predict the dynamic response of spherical shells. Novozhilov's 'Thin Shell Theory' is applied and the element stiffness and mass matrices are derived. The spherical shell is represented as a finite number of spherical frustra, joined at nodal circles. The equation of motion is wirtten for the free vibration problem. (Author)

Descriptors :   (*HYDROPHONES, MATHEMATICAL MODELS), SHELLS(STRUCTURAL FORMS), BODIES OF REVOLUTION, STRESSES, TRANSDUCERS, HYDROSTATIC PRESSURE, VIBRATION

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE