HYDROELASTIC DESIGN OF SUBCAVITATING AND CAVITATING HYDROFOIL STRUT SYSTEMS

This report presents design procedures and parametric trends that can be used to avoid flutter and divergence of hydrofoil strut-foil systems. Flutter stability of conventional T-foils can be achieved by scaling existing prototype systems which are stable; scaled flutter models must be used to determine the stability of new designs. Several stable T-foil designs are available for craft with displacements of up to 300 tons at subcavitating speeds (below 50 knots). The availability of higher speed designs for ships of practical size is limited to one system that is stable to 62 knots. Divergence stability of subcavitating systems can be ensured by theoretical analysis using an available computer program.

• Corporate Authors:

  Naval Ship Research and Development Center

  Ship Performance Department
  Bethesda, MD  United States  20034
• Authors:
  • Besch, P K
  • Liu, Y N
• Publication Date: 1974-4

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 88 p.

Subject/Index Terms

• TRT Terms: Flutter; Flutter (Aeronautics); Hydroelasticity; Hydrofoils
• Old TRIS Terms: Cavitating hydrofoils
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00057104
• Record Type: Publication
• Source Agency: Naval Ship Research and Development Center
• Report/Paper Numbers: #4257
• Files: TRIS
• Created Date: Jul 31 1974 12:00AM