Accession Number:

ADA010822

Title:

Cushion Pressure Properties of a High Length-To-Beam Ratio Surface Effect Ship,

Descriptive Note:

Corporate Author:

NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP PERFORMANCE DEPT

Personal Author(s):

Report Date:

1975-05-01

Pagination or Media Count:

51.0

Abstract:

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.

Subject Categories:

  • Surface Effect Vehicles and Amphibious Vehicles
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE