AN EXPERIMENTAL ANALYSIS OF THE DYNAMICS OF A SUBMERGED TETHERED CRADLE

Submerged recovery of small submersibles by means of surface tethered platforms offers the possibility of operations in sea states higher than is now possible using surface recovery means. The Woods Hole Oceanographic Institution's submersible support catamaran LULU has such a tethered system. The system consisting of cradle, chains, and hoist is designed to recover DSRV ALVIN at a depth of 100 feet, and then lift the submersible rapidly through the air-sea interface. A 1/40 scale model of the catamaran, chain and cradle was constructed to investigate cradle heave and pitch response in regular sinusoidal waves. Model tests were conducted at the Massachusetts Institute of Technology Tow Tank Facility and data was recorded electronically and photographically.

• Corporate Authors:

  Woods Hole Oceanographic Institution

  Woods Hole, MA  United States 
• Authors:
  • Cohen, J M
• Publication Date: 1972-6

Media Info

• Pagination: 73 p.

Subject/Index Terms

• TRT Terms: Cables; Catamarans; Dynamics; Mooring; Moorings; Motion; Offshore platforms
• Old TRIS Terms: Cable dynamics; Motion response of platforms
• Subject Areas: Bridges and other structures; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00040895
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: WHOI-72-45 Tech Rpt
• Contract Numbers: N00014-71-C-0107
• Files: TRIS
• Created Date: Feb 14 1973 12:00AM