CUSHION PRESSURE PROPERTIES OF A HIGH LENGTH-TO-BEAM RATIO SURFACE EFFECT SHIP

Air-cushion-supported vehicles are commonly assumed to be subject to a spatially uniform pressure distribution in the cushion region of the craft. The validity of this simplifying assumption is examined experimentally by measuring the spatial and temporal distribution of pressure in the cushion of a high length-to-beam ratio surface effect ship model free to heave and pitch in regular head waves. It is found that the pressure is not uniformly distributed in this model and the nonuniformity can lead to a heretofore unexamined mechanism for the generation of pitching motion in waves.

• 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: 51 p.

Subject/Index Terms

• TRT Terms: Acoustical pitch; Pressure; Surface effect ships
• Uncontrolled Terms: Pressure distribution
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00126036
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SPD-600-01
• Files: TRIS
• Created Date: Oct 18 1975 12:00AM