Imitation design of process of divergence of vessels by urgent deviation at excessive rapprochement

For conducting of imitation design of process of urgent divergence the computer program, which contains the module of choice of initial situation of excessive rapprochement, module of analysis of current situation and choice of safe maneuver of urgent divergence, was developed. The imitation program analyses the situation of excessive rapprochement from positions of target, determines urgent strategy of divergence and manages motion of target. An user can manage motion of ship by a scroll bar, causing of helm of ship during 20 s, since the moment of including of timer. The imitation program analyses the maneuver of ship and in the case of necessity corrects strategy of urgent divergence. After the stage of output of target on a course equal to the reverse bearing on a ship, the parameters of urgent strategy of divergence are determined. At the imitation design three variants of conduct of ship were examined: followings with the unchanging parameters of motion, a ship deviates to the right and a ship deviates to the left. Thus beginning of deviation was produced at any point to time on an interval from 0 to 20 s. After 20 s the imitation program the helm of ship was automatically driven to the diametric plane and course of ship became unchanging. This moment of time was perceived by a target, as end of maneuver of ship and on the parameters of situation in the moment of ending of deviation of ship estimation of danger of rapprochement was produced and new parameters of urgent strategy of divergence, which was immediately realized by a target, in the case of necessity settled accounts. Some variants of initial situations of excessive rapprochement are resulted in the article, in which urgent strategy of divergence of target contains the first stage of deviation only, the parameters of which depend on the conduct of ship. Three situations of rapprochement of vessels with a different conduct of one of them are considered in all. The resulted examples are shown, that depending on the situation of excessive rapprochement and conduct of ship the first stage can be transformed in relation to a standard variant by the choice of a different trajectory of divergence.