This paper develops simple approximations for the sound radiation of the accordion (longitudinal) and the whipping (transverse) vibration of a spheroid. This analysis can be directly applied to the fundamental vibratory modes of a submarine hull. The very close correlation between these predictions and the exact spheroidal wave functions is demonstrated for far-field radiation from a slender spheroid. This correlation is carried out over the ranges of angular position and frequency of practical interest. Through application of these approximations in future predictions, the use of the cumbersome spheroidal wave functions can be avoided.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Ocean Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Akst, H G
  • Publication Date: 1973-6

Subject/Index Terms

Filing Info

  • Accession Number: 00048375
  • Record Type: Publication
  • Source Agency: Massachusetts Institute of Technology
  • Report/Paper Numbers: MS Thesis
  • Files: TRIS
  • Created Date: Nov 14 1974 12:00AM