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.

  • Supplemental Notes:
    • Presented at the 5th Ship Control Systems Symposium, Annapolis, 30 October-3 November 1978.
  • Corporate Authors:

    David Taylor Naval Ship R&D Center

    Bethesda, MD  United States  20084
  • Authors:
    • Eda, H
  • Publication Date: 1978

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00323583
  • Record Type: Publication
  • Source Agency: Stevens Institute of Technology
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM