System Identification in Ship Maneuvering Trials: Analysis of the ESSO OSAKA Trial Data

摘要

Maneuvering trials of the 278,000 deadweight ton tanker ESSO OSAKA were made in two shallow water and one deep water sites in the Gulf of Mexico in July and August 1977. In addition to the operational maneuvers, special trials including spiral tests were conducted to provide input data for 'systems identification' research. This report presents the results of the application of system identification processes to the ESSO OSAKA trial data for all three water depths. There is a detailed discussion of the new derived form of the equations of motion and certain hydrodynamic phenomena that the ship experienced during the shallow water maneuvers. The favorable comparison between the simulated and measured ship responses indicate that the form of the equations and the coefficient values as identified provide a very realistic and useful simulation model for the ESSO OSAKA.