Wide Bandwidth Barrel Stave Projector.
Abstract
An underwater acoustical projector has its barrel staves located radially outward of a piezoelectric ceramic driver. The barrel staves are in an hour glass arrangement. The cross-sectional arrangement of the barrel staves is circular at both the top and bottom of the hour glass forming elliptical cross-sections of varying eccentricity between said top and bottom of said staves. The cross-section of greatest eccentricity is located midway between the top and bottom of said staves. The cross-section of greatest eccentricity is located midway between the top and bottom of the barrel staves. This forms a projector with a varying radius of curvature in each of the four 90 quadrants around the axis of the projector. This yields large changes in the resonant frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 28, 1991
- Accession Number
- ADD015216
Entities
People
- Robert J. Obara
Organizations
- United States Department of the Navy