INVESTIGATIONS ON THE OPERATION OF SHIPS' AUTOMATIC STEERING SYSTEMS UNDER SEAWAY CONDITIONS

In the interests of fuel economy, a ship's course of adequate accuracy should be held with a minimum of rudder movement. With this in view, investigations were carried out in various ships, and here the Author <of VEB Deutfracht/Seeree derei, Rostock> presents the results obtained during a voyage of the East German research-ship A. v. Hiimboldt equipped with an HSA 11 autopilot. Measurements of course errors, rudder angles, and fuel consumption recorded during the voyages were statistically analysed. The investigations and their results are discussed under the headings: - <1> Influence of Yaw filter System on the operation of the Autopilot under Various Seaway Conditions. <2> Spectral Investigation of the Course Disturbance Signal. <3> Significance of the Results for Ship Operation. Under <3>, the need is mentioned for an adaptive arrangement which would automatically maintain an optimum adjustment of the filter system to suit the prevailing seaway yaw.

• Supplemental Notes:
  • Seewirtschaft, 17 <1985>, p. 28 <Jan.> (3 pp., 11 ref., 6 graphs, 3 diag.)
• Authors:
  • Markert, M
• Publication Date: 1985

Language

• German

Subject/Index Terms

• Identifier Terms: Humboldt (Ship)
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00687969
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM