HYDRODYNAMIC STABILITY OF PARTIALLY SUBMERGED THIN PROFILES AT HIGH FROUDE NUMBERS

SES technology involves an order of magnitude jump in dynamic pressure compared with buoyancy vessels: 100B to 2KSES is a similar jump in weight. Large structures (aircraft, bridges, cooling towers) in high-speed flow have historically fluttered until such phenomena were accounted for by appropriate structural design criteria. Hydroelastic coupling on the SES is only significant during wave encounter when dynamic load magnification and fatigue life will be critically dependent on flutter margin. However, high Froude number hydrodynamic coefficients for posing such problems do not exist. Some initial steps for their formulation are discussed.

• Supplemental Notes:
  • Presented at the Advanced Marine Vehicles Conference, jointly sponsored by the American Institute of Aeronautics and Astronautics and the Society of Naval Architects and Marine Engineers, with the active cooperation and support of the United States Navy, San Diego, Calif., Feb. 25-28, 1974.
• Corporate Authors:

  AIAA/SNAME Advanced Marine Vehicles Conference

  1290 Avenue of the Americas
  New York, NY  United States  10019
• Authors:
  • Smith, GCC
  • Shaw, R P
• Publication Date: 1974-2

Media Info

• Features: References;
• Pagination: 9 p.

Subject/Index Terms

• TRT Terms: Flutter; Flutter (Aeronautics); Froude number; High speed craft; Hydrofoils; Surface effect ships; Waves
• Old TRIS Terms: Effects; Wave effects
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00054235
• Record Type: Publication
• Source Agency: American Institute of Aeronautics and Astronautics
• Report/Paper Numbers: Paper #74-315
• Files: TRIS
• Created Date: May 7 1974 12:00AM