FLUTTER AND DIVERGENCE CHARACTERISTICS OF FOUR LOW MASS RATIO HYDROFOILS

Four low mass ratio hydrofoil models of aspect ratio 5 were flutter tested. The flutter speed of the mass ratio 0.963 model was 24.7 knots. The other three models, of mass ratios 0.455, 0.395, and 0.202, were subject to static failure in bending at about 36 knots and did not flutter below this speed. The results were compared with the predictions of three flutter theories. All theories gave conservative flutter speed predictions at mass ratio 0.963. Two of the theories were also conservative at mass ratio 0.455. (Author)

• Corporate Authors:

  Naval Ship Research and Development Center

  Washington, DC  United States 
• Authors:
  • Besch, P K
  • Liu, Y N
• Publication Date: 1971-1

Media Info

• Pagination: 49 p.

Subject/Index Terms

• TRT Terms: Bending; Failure; Flutter; Flutter (Aeronautics); Hydrofoils; Loads
• Old TRIS Terms: Bending loads
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00016695
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NSRDC-3410
• Files: TRIS
• Created Date: Aug 27 1971 12:00AM