ON-LINE COMPUTER DETERMINATION OF THE UNSTEADY LIFT CHARACTERISTICS OF HYDROFOILS BY A MULTI-FREQUENCY TECHNIQUE

This paper discusses an on-line computer experiment aimed at determining the unsteady lift characteristics of hydrofoil sections using multi-frequency disturbances and numerical processing based on fast Fourier transform techniques. The results achieved are compared with those obtained using a conventional Transfer Function Analyzer. The advantages of the former approach are the vastly reduced time required to perform the experiments and the very small input disturbances necessary to excite the system under test.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0020868X
• Corporate Authors:

  International Periodical Press

  193 Heemraadssingel
  Rotterdam,   Netherlands 
• Authors:
  • Floer, J O
  • Forge, S C
  • Knott, G
• Publication Date: 1976-9

Media Info

• Features: References;
• Pagination: p. 313-316
• Serial:
  • International Shipbuilding Progress
  • Volume: 23
  • Issue Number: 265
  • Publisher: IOS Press
  • ISSN: 0020-868X
  • Serial URL: http://www.iospress.nl/journal/international-shipbuilding-progress/

Subject/Index Terms

• TRT Terms: Analysis; Hydrofoils; Information processing; Test procedures; Transfer functions
• Uncontrolled Terms: Computer aided analysis
• Old TRIS Terms: Hydrofoil models
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00149752
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Apr 13 1977 12:00AM