A DIGITAL SIMULATION STUDY OF STEERING CONTROL WITH EFFECTS OF ROLL 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.
- Proceedings Fifth Ship Control Systems Symposium, David W. Taylor Naval Ship Research and Development Center, Annapolis, Maryland, October 30-November 3, 1978, Volume 3.
David Taylor Naval Ship R&D CenterBethesda, MD USA 20084
- Eda, H
- Publication Date: 1978
- Features: References;
- Pagination: 11 p.
- TRT Terms: Digital computers; High speed craft; Hydrodynamic pressure; Maneuvering; Mathematical models; Rolling; Rudders; Ship motion; Ship pilotage; Ship simulators; Steering; Turning traffic
- Old TRIS Terms: Course stability; Digital systems; Hydrodynamic forces; Model testing; Roll response; Rudder control systems; Steering characteristics; Turning characteristics
- Subject Areas: Marine Transportation; Operations and Traffic Management; Terminals and Facilities; Vehicles and Equipment;
- Accession Number: 00187963
- Record Type: Publication
- Source Agency: David Taylor Naval Ship R&D Center
- Report/Paper Numbers: Proceeding
- Files: TRIS
- Created Date: Feb 3 1979 12:00AM