A METHOD FOR THE PREDICTION OF THE MOTIONS OF SHIPS MOORED IN ARCTIC WATERS

The problem of predicting the motions of a vessel moored offshore in an irregular seaway is analyzed. Diagrams for the prediction of the surging, heaving and pitching motions as well as the vertical motion of the bow are presented. The sea states correspond to those typically found in the northern part of the North Atlantic. Prediction diagrams are developed using the well-known strip-theory approach for obtaining the hydrodynamic forces. The response operators are derived by assuming coupled motions. Directional wave spectra formulation is used for the calculation of the response of the vessel to excitation by irregular seas. The orientation of the spread moored vessel to the principal wave direction is an input parameter.

• Supplemental Notes:
  • Abstract of paper delivered at the First International Conference on "Port and Ocean Engineering under Arctic Conditions" held at Trondheim, Norway, August 23-30, 1971
• Corporate Authors:

  POAC Conference

  ,    
• Authors:
  • Seidl, L H
• Publication Date: 1971-8-23

Subject/Index Terms

• TRT Terms: Electromagnetic spectrum; Mooring; Moorings; Operations; Ship motion
• Geographic Terms: Arctic Regions
• Old TRIS Terms: Arctic operations
• Subject Areas: Administration and Management; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00025680
• Record Type: Publication
• Source Agency: Arctic Institute of North America
• Files: TRIS
• Created Date: Mar 28 1972 12:00AM