SOUND RADIATION FROM A CYLINDER IMMERSED IN AN ACOUSTIC FLUID BOUNDED BY AN ELASTIC HALF-SPACE
The problem of the forced steady-state response of an infinite cylindrical shell immersed in an acoustic fluid bounded by an elastic half-space is investigated. Pressures and radial displacements on the shell surface are expanded into Fourier series. With the aid of the Fourier integral transform, the normal velocities on the boundary of the half-space are expressed in terms of infinite integrals. Continuous distributions of sources of unknown strength are applied along the fluid boundaries, which are subdivided into small intervals, so that the source strengths can be assumed to be constant over each interval. Satisfaction of the boundary conditions at the interfaces leads to a system of linear homogeneous algebraic equations, which is solved for the source strengths on the fluid boundaries and the coefficients of the Fourier series expansion of the shell-fluid interaction pressure. Using these values, the surrounding pressure field is completely determined. Results are presented for several cases of interest.
- Sponsored by the Office of Naval Research, Arlington, Virginia.
Weidlinger (Paul)Consulting Engineer
New York, NY United States
Brooklyn Polytechnic Institute333 Jay Street
Brooklyn, NY United States 11201
- Skidan, O
- Klosner, J M
- Baron, M L
- Publication Date: 1972-6
- Features: References;
- Pagination: 75 p.
- TRT Terms: Acoustic radiation; Cylinders (Geometry); Shells (Structural forms); Sound transmission; Wave motion
- Uncontrolled Terms: Cylindrical shells
- Old TRIS Terms: Sound radiation
- Subject Areas: Design; Marine Transportation;
- Accession Number: 00035679
- Record Type: Publication
- Source Agency: Ship Structure Committee
- Report/Paper Numbers: PIBAL Rpt No. 72-1 Tech Rpt
- Contract Numbers: N00014-72-C-0119, N00014-67-A004380006
- Files: TRIS
- Created Date: Oct 13 1973 12:00AM