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  United States  20084
• Authors:
  • Curphey, R M
  • Lee, C M
• Publication Date: 1977-7

Media Info

• Features: References;
• Pagination: 56 p.

Subject/Index Terms

• TRT Terms: Bending moments; Dynamic loads; Loads; SWATH ships; Twin hulled ships; Water waves
• Old TRIS Terms: Wave loads
• Subject Areas: Design; Hydraulics and Hydrology; Marine Transportation;

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