HYDRODYNAMIC FORCES ACTING ON A VERTICAL CIRCULAR CYLINDER OSCILLATING WITH A VERY LOW FREQUENCY IN WAVES

Slow drift oscillation is a very important problem when estimating the line tension of moored systems such as semisubmersible platforms. This article addresses the problem, describing an investigation of the hydrodynamic forces acting on vertical circular cylinders forced to surge at very low frequencies in regular waves, an investigation carried out with the view of studying the viscous damping force acting on a moored floating structure experiencing slow-drift oscillation in irregular waves. Experiments showed the drag coefficients of the cylinder oscillating with low frequencies in waves to be quite different from those of the cylinder oscillating in still water.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00298018
• Supplemental Notes:
  • Journal article
• Authors:
  • Koterayama, W
  • Nakamura, M
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: 17 p.
• Serial:
  • Ocean Engineering
  • Volume: 15
  • Issue Number: No.3
  • Publisher: Pergamon
  • ISSN: 0029-8018
  • EISSN: 1873-5258
  • Serial URL: http://www.sciencedirect.com/science/journal/00298018

Subject/Index Terms

• TRT Terms: Cylinders; Drift; Dynamic loads; Hydrodynamic pressure; Mooring; Motion; Offshore platforms; Oscillation; Structural shells; Surging; Water waves
• Uncontrolled Terms: Cylindrical shells
• Old TRIS Terms: Drift forces; Hydrodynamic forces; Mooring lines; Platform motions
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00655675
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM