SLOW DRIFT OSCILLATIONS OF A SHIP IN IRREGULAR WAVES

A procedure to calculate horizontal slow drift excitation forces on an infinitely long horizontal cylinder in irregular beam sea waves is presented. The hydrodynamic boundary-value problem is solved correctly to second order in wave amplitude. Results in the form of second order transfer functions are presented for different two-dimensional shapes. It is concluded that Newman's approximative method is a practical way to calculate slow drift excitation forces on a ship in beam sea and suggested that it may be used in a more general case. Applications of the results for moored ships are discussed.

  • Corporate Authors:

    Norske Veritas

    P.O. Box 6060
    Oslo 6,   Norway 
  • Authors:
    • Faltinsen, O M
    • Loken, A E
  • Publication Date: 1979-4

Media Info

  • Features: References;
  • Pagination: 16 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00303145
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 11 1980 12:00AM