Ivanovskiy M. Optimization of ship control at setting of purse net

Dissertation is devoted to optimization of ship control at setting of purse net, and the increase of productivity of catcher boat by force of decrease in number unsuccessful setting of net. For achievement of purpose was decided main task development of optimum algorithm of ship control at setting of net. As a result of decision of private tasks developed: ways of optimum planning of a trajectory of movement of ship a on the setting of net stage; a tester maneuver "symmetric zigzag" is modified; the mathematical model of change of angular speed in the function of corner of turn, taking into account influencing of purse seine, which enables grounded to plan the trajectory of motion of ship; the mathematical model of movement of system "ship - purse seine - object of catch". The perspective control system by maneuvering of ship is created at setting of net for the account: supply of managing influences on speed motions and corner of course variation at planning of motion; choice of initial point of setting of net with the use of preliminary imitation design; planning of process of motion by an inversion method; providing by maneuvers descriptions at planning of trajectory for that state which maneuvering is at, and re-calculation of descriptions for current positions of control. The scientific importance of the given research consists in perfection of methodology of control by maneuvering of catcher boat for purse catch in interrelation with the fishing gear and object of a catch. The practical importance of work is connected to development of a simulator of the navigator of a ship for purse catch, systems of support of decision-making, a technique of planning of shunting operations at setting of purse nets, and also mathematical model of movement of system "ship - purse seine - object of catch". Results can be used and inculcated: on the commercial ships of purse catch, and also in educational-trainers centers.