SYSTEM IDENTIFICATION APPLIED TO MANEUVERING TRIALS

This thesis shows the application of two particular approaches of system identification to the maneuvering trials of a surface ship. The model reference contouring and the extended Kalman filtering are used to identify the hydrodynamic coefficients of the Mariner class hull form. The mathematical model representing the ship dynamics is first developed. The concept of parametric identifiability is presented and the techniques which will be used are described. The scheme adopted to conduct the identification studies is then presented. The computation steps for the implementation of the identification approaches to the mathematical model are detailed. The results of the identification procedure are analyzed. They give a good idea about the identifiability of the hydrodynamic coefficients, particularly the linear coefficients. The use of simpler models is shown to produce better results. The conclusions of the studies express some general rules about the application techniques, specially extended Kalman filtering to the maneuvering studies.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Brinati, H L
• Publication Date: 1973-7-9

Subject/Index Terms

• TRT Terms: Hulls; Maneuverability; Ship motion; Ship simulators; Ship trials
• Old TRIS Terms: Hull configurations
• Subject Areas: Marine Transportation; Terminals and Facilities; Vehicles and Equipment;

Filing Info

• Accession Number: 00050906
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Thesis
• Files: TRIS
• Created Date: Feb 15 1974 12:00AM