Petrychenko O. Development of a method for operative maneuver choice of ships divergence while sailing in the confined waters

Analytical expressions and algorithm are offered in this work for development of procedures of the informative system, necessary at estimation of situation of rapprochement and optimization of maneuver of divergence. Computer procedure of forming of region of impermissible values of parameters of deviation is got, by which it is possible to choose the optimum values of time and course of deviation of ship at his dangerous rapprochement with target. In work it is also considered and developed computer procedures of forming of region of acceptability parameters of deviation, which provide safe divergence of ship with target. The considered procedures foresee the calculation of scopes of regions for the case of advantage of speed of ship above speed of target, so in other case. Developed computer procedure which allows defining dependence of moments of time of output in relation to the chosen course taking into account the side of deviation of ship. Upon completion of work the results of imitation design of method of operative choice of maneuver of divergence of vessels are represented, got as a result of dissertation research. The thumb-nail sketch of simulation routine is resulted and shown that she consists of three modules: choice of initial situation of dangerous rapprochement and forming for her of region of impermissible values of parameters of deviation and region of acceptability parameters of output; module of determination of optimum parameters of divergence of ship with the reflection on the electronic card of veritable and relative trajectories of divergence of ship; and also module of imitation design of process of divergence of ship. Resulted results of imitation design: choice of maneuver of divergence at sailing of ship at sea, and also the account of navigation obstacles at the choice of maneuver of divergence in the straitened districts of sailing is shown. Keywords: safety of navigation, warning of collisions of vessels, locally-independent management, regions of impermissible parameters of deviation and output.