THE WAVE HEIGHT UNDER A HIGH LENGTH-TO-BEAM RATIO SURFACE-EFFECT SHIP IN REGULAR WAVES

The Froude-Kryloff hypothesis stating that a wave field in the region of a floating body may be assumed to persist as if the body were transparent to waves has been examined for a high length-to-beam ratio surface-effect ship. The wave amplitude has been measured at several points within the cushion area of a surface-effect ship model free to heave and pitch, in regular head waves. Significant modifications of the encountered wave field were observed at certain wave excitation frequencies. It is not possible, however, at this point to differentiate the sidewall wave generating influence from the effect of the unsteady pressure field in the cushion area of the surface-effect ship model tested.

• Corporate Authors:

  David Taylor Naval Ship R&D Center

  Ship Performance Department
  Bethesda, MD  United States  20084
• Authors:
  • Moran, D D
• Publication Date: 1975-5

Media Info

• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Air cushion vehicles; Amplitude; Dynamic loads; Harmonics; Hydrodynamics; Lift fans; Pitch (Acoustics); Pitch (Dynamics); Ships; Structural models; Surface effect ships; Wave height; Wave measurement; Waves
• Uncontrolled Terms: Heaving; Ship models
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00091767
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SPD-587-01 Final Rpt.
• Files: TRIS
• Created Date: Sep 10 1975 12:00AM