APPLICATIONS OF DIGITAL SIMULATION ANALYSIS TO SHIP CONTROL - 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 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.

• Supplemental Notes:
  • Presented at the 4th Ship Control Systems Symposium, 1975.
• Corporate Authors:

  Royal Netherlands Naval College

  P-de Hoochweg
  129 Rotterdam,   Netherlands 
• Authors:
  • Eda, H
• Publication Date: 1975

Media Info

• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Analysis; Drilling ships; Dynamic positioning; Information processing; Ship pilotage; Simulation
• Uncontrolled Terms: Computer aided analysis; Ship design
• Old TRIS Terms: Positioning control; Wind forces on ships
• Subject Areas: Administration and Management; Marine Transportation; Operations and Traffic Management; Vehicles and Equipment;

Filing Info

• Accession Number: 00323572
• Record Type: Publication
• Source Agency: Stevens Institute of Technology
• Files: TRIS
• Created Date: Mar 12 1981 12:00AM