LOW-FREQUENCY DRIFTING FORCE ON A FLOATING BODY IN WAVES

The drift speed of a floating structure in a seaway appears to be a slowly varying function of time. If this structure is kept on station by means of anchor lines, the natural sway and surge periods of this mass-spring system are so large that it can be excited by the low-frequency drifting force, resulting in large motion amplitudes of the floater. The origin of the low-frequency drifting force is discussed and the functional relationship with characteristics of the sea is derived theoretically. The theoretical explanation is verified by model test results.

• 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:
  • Verhagen, JHG
• Publication Date: 1970-4

Media Info

• Pagination: p. 136-145
• Serial:
  • International Shipbuilding Progress
  • Volume: 17
  • Issue Number: 188
  • Publisher: IOS Press
  • ISSN: 0020-868X
  • Serial URL: http://www.iospress.nl/journal/international-shipbuilding-progress/

Subject/Index Terms

• TRT Terms: Floating structures; Mooring
• Uncontrolled Terms: Floating bodies
• Old TRIS Terms: Moored vessels
• Subject Areas: Bridges and other structures; Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00015182
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 13 1971 12:00AM