MOORING DYNAMICS EXPERIMENT - DETERMINATION OF A VERIFIED DYNAMIC MODEL OF THE WHOI INTERMEDIATE MOORING

Oceanographic measurements obtained from moored buoy systems are corrupted by the effects of mooring motion. To compute these effects and to design better moored systems, accurate mathematical descriptions of mooring dynamics and instrument dynamic response are needed. The report addresses the problem of mooring dynamics. The design and verification of a model for the low frequency dynamics of the Woods Hole Oceanographic Institution (WHOI) Intermediate Mooring is described. A computationally efficient model was verified in the time domain using generalized least-squares techniques. Construction of this model involved iteration upon important system parameters and descriptions of physical processes in the light of the experimental data obtained from a full scale ocean test conducted jointly with WHOI. Model errors were defined, and procedures for obtaining greater accuracy through improved experiments are outlined. Preliminary results are presented on the development of potentially more effective maximum likelihood techniques for model parameter estimation. (Modified author abstract)

• Corporate Authors:

  Massachusetts Institute of Technology

  Charles Stark Draper Laboratory
  Cambridge, MA  United States  02139
• Authors:
  • Chhabra, N K
  • Dahlen, J M
  • Froidevaux, M R
• Publication Date: 1974-6

Media Info

• Pagination: 312 p.

Subject/Index Terms

• TRT Terms: Cable systems; Cables; Dynamics; Mooring; Mooring buoys; Moorings
• Old TRIS Terms: Cable dynamics
• Subject Areas: Marine Transportation; Terminals and Facilities;

Filing Info

• Accession Number: 00072423
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: R-823 Final Rpt.
• Contract Numbers: N00014-67A-0204-0047, N00014-74-C-0163
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM