"FLOPPER STOPPERS" IN OCEAN RESEARCH

"Flopper Stoppers" compose a simple passive system for decreasing the rolling of a ship dead in the water at sea. In essence, "Flopper Stoppers" are damper plates suspended from poles on the port and starboard sides of the ship. The plates are submerged in the water, and their resistance to motion causes a damping of the ship's roll. In this paper, expressions are developed that may be used for designing "Flopper Stoppers." One expression gives the decrement in roll angle caused by the "Flopper Stoppers." Other expressions give stresses exerted on the suspension system and the ship by the damper plates.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00281425
• Corporate Authors:

  American Society of Naval Engineers

  Suite 507, 1012 14th Street, NW
  Washington, DC  United States  20005
• Authors:
  • ROSS, J M
• Publication Date: 1980-2

Media Info

• Features: References;
• Pagination: p. 45-50
• Serial:
  • Naval Engineers Journal
  • Volume: 92
  • Issue Number: 1
  • ISSN: 0028-1425

Subject/Index Terms

• TRT Terms: Damping (Engineering); Mathematical models; Moments (Mechanics); Research ships; Rolling; Ship motion
• Old TRIS Terms: Roll control systems; Roll damping; Rolling moment
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00309432
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 22 1980 12:00AM