Use of Full Scale Trial Results for Investigations of Maneuverability of Ships

Ship trials provide a very important source of information for solution of different tasks of maneuverability of ships. This paper is devoted to the consideration of two such tasks: definition of the maneuverability criteria and determination of the hydrodynamic characteristics of the ship's hull. A set of criteria based on determining parameters of ship maneuvering is considered. A method is presented for the determination of hydrodynamic characteristics of a ship hull from the parameters of motion measured during the maneuvering trials. This method is based on the results of the analysis of the relationship between the hydrodynamic forces on the ship hull and rudder. The hydrodynamic characteristics of the ship hull determined from the trials can be used for new designs, in the study of scale effects, and other tasks of the applied maneuverability of ships.