Exciting forces and moments due to plane incident waves on a stationary platform are studied in the report. The platform is a vertical cylinder with a finite draft and elliptical cross section. The mathematical solution to the diffraction problem is obtained on the basis of the linearized long-wave approximation. Numerical results via Mathieu functions are presented for a shiplike body with beam-to-length ratio approximately equal to 0.2. Various draft-to-depth ratios and angles of incidence are considered. Results have been checked with the limiting case of a circular cylinder for the long-wavelength range. Aside from its own practical interest, the present theory provides a basis for comparison with other approximate theories of slender-body type and serves as a prelude to the corresponding calculations for arbitrary wavelengths. (Author)

  • Supplemental Notes:
    • Availability: Pub. in Jnl. of Ship Research, v17 n2 p61-71 Jun 73.
  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Chen, H S
    • Mei, C C
  • Publication Date: 1972-8-14

Media Info

  • Pagination: 22 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00048402
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Contract Numbers: N00014-67-A-0204-003
  • Files: TRIS
  • Created Date: Nov 14 1973 12:00AM