Accession Number : ADA315240

Title :   Use of the Double-Sum Technique for Computing the Modal Response of Regularly Ribbed Cylinders.

Descriptive Note : Rept. for 1 Jan-31 May 96,

Corporate Author : NAVAL SURFACE WARFARE CENTER DAHLGREN DIV SILVER SPRING MD

Personal Author(s) : Maidanik, G. ; Becker, K. J.

PDF Url : ADA315240

Report Date : 01 MAY 1996

Pagination or Media Count : 54

Abstract : Recently an efficient technique was proposed for performing a Fourier transformation on integrands that are composed of aliased factors. In this report the proposed technique is utilized to perform Fourier transformations on quantities that pertain to the response of a regularly ribbed cylinder. The computations relate to Fourier transformations from the axial wavenumber domain to the axial spatial domain. The phenomena of aliasing and pass and stop bands are of particular interest. It is argued that the complementarity of the data, when presented in the two Fourier conjugate domains, may be a useful analytical (and experimental) tool.

Descriptors :   *FOURIER TRANSFORMATION, *COMPUTATIONS, *CYLINDRICAL BODIES, *RESPONSE, *RIBS, SPATIAL DISTRIBUTION, QUANTITY, WAVE PROPAGATION, ACOUSTIC PROPERTIES.

Subject Categories : Numerical Mathematics
      Acoustics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE