THEORETICAL PREDICTION OF DYNAMIC WAVE LOADS ON SMALL-WATERPLANE-AREA, TWIN-HULL SHIPS

A mathematical model and computer program have recently been developed to predict the bending moment, sideload, and vertical shear force acting on the cross structure and strut of twin-hull ships in beam waves. The computer program has been used to predict these loads for a variety of small-waterplane-area, twin-hull (SWATH) ships, and good agreement with experimental data confirms the basic validity of the prediction technique. The prominent feature of sideload and transverse bending-moment responses for SWATH ships is a sharp peak resulting from wave diffraction at an excitation wavelength roughly three to four times the maximum overall beam of the ship.

  • Corporate Authors:

    David Taylor Naval Ship R&D Center

    Bethesda, MD  USA  20084
  • Authors:
    • Curphey, R M
    • Lee, C M
  • Publication Date: 1977-7

Media Info

  • Features: References;
  • Pagination: 56 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00159945
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DTNSRDC 77-0061
  • Files: TRIS
  • Created Date: Sep 20 2004 12:00AM