DYNAMIC POSITIONING CONTROL OF DRILLING SHIPS
The dynamic positioning performance of a typical drilling ship design is evaluated in a computer-aided analysis to provide guidelines for operating limits in seaways. The necessary hydrodynamic and aerodynamic data are evaluated for this ship on the basis of available model test results together with analytical computations. Equilibrium conditions and dynamic performance are examined in a series of digital computations under the influence of wind and water current with changes in wind conditions. Results reveal that the wind from the quartering direction has the greatest influence when the ship is directed towards the current. Summary charts are presented to indicate critical wind conditions.
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Supplemental Notes:
- Third Conference, Tokyo, Japan, August 5-8, 1975. Available from Secretary of International Ocean Development Conference.
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Corporate Authors:
International Ocean Development Conference
Japanese Management Association
Tokyo, Japan -
Authors:
- Eda, H
- Conference:
- Publication Date: 1975
Media Info
- Pagination: p. 577-588
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Serial:
- Volume: 2
Subject/Index Terms
- TRT Terms: Analysis; Data analysis; Data reduction; Drilling ships; Dynamic positioning; Hydrodynamics; Information processing; Oceanography; Wind
- Uncontrolled Terms: Computer aided analysis
- Old TRIS Terms: Drillships; Positioning control systems; Wind effects; Wind forces on structures
- Subject Areas: Hydraulics and Hydrology; Marine Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00156521
- Record Type: Publication
- Source Agency: Engineering Index
- Report/Paper Numbers: Preprint
- Files: TRIS
- Created Date: Jul 2 1977 12:00AM