A SIMULATION STUDY OF STEERING CONTROL WITH EFFECT OF ROLLING MOTIONS
Results are given of a series of digital simulation of yaw-sway-roll-rudder coupled motions for the case of a high-speed ship. A mathematical model was formulated on the basis of captive model tests of this ship with inclusion of roll effects. Results indicate substantial coupling effects between yaw, roll, and rudder, which introduce changes in maneuvering characteristics and reduce course stability in high-speed operation. These effects together with relatively small GM (which is typical for certain high-speed ships) produce large rolling motions in a seaway as frequently observed in actual operations. Results of digital simulations and captive model tests clearly indicate the major contributing factors to such excessive rolling motions at sea.
- Presented at the 5th Ship Control Systems Symposium, Annapolis, 30 October-3 November 1978.
David Taylor Naval Ship R&D CenterBethesda, MD United States 20084
- Eda, H
- Publication Date: 1978
- Pagination: n.p.
- TRT Terms: High speed craft; Maneuvering; Mathematical models; Oscillation; Rolling; Rudders; Ship motion; Ship simulators; Simulation; Yaw; Yaw
- Old TRIS Terms: Model testing; Roll response; Rudder oscillation
- Subject Areas: Marine Transportation; Operations and Traffic Management; Vehicles and Equipment;
- Accession Number: 00323583
- Record Type: Publication
- Source Agency: Stevens Institute of Technology
- Files: TRIS
- Created Date: Mar 12 1981 12:00AM