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.

  • Supplemental Notes:
    • Sponsored by the Office of Naval Research, Arlington, Virginia.
  • Corporate Authors:

    Weidlinger (Paul)

    Consulting Engineer
    New York, NY  USA 

    Brooklyn Polytechnic Institute

    333 Jay Street
    Brooklyn, NY  USA  11201
  • Authors:
    • Skidan, O
    • Klosner, J M
    • Baron, M L
  • Publication Date: 1972-6

Media Info

  • Features: References;
  • Pagination: 75 p.

Subject/Index Terms

Filing Info

  • 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