Open AccessDECLINE OF LATERAL DISPLACEMENT OF SHIP AFTER A MANEUVER BY THE INPUT OF ADDITIONAL AMENDMENT OF THE COURSE
Author(s) -
M. S. Alekseychuk,
P. A. Chapchay,
E.A. Avramenko
Publication year - 2020
Publication title -
sudovoždenie
Language(s) - English
Resource type - Journals
eISSN - 2618-0073
pISSN - 2306-5761
DOI - 10.31653/2306-5761.30.2020.08-15
Subject(s) - heading (navigation) , displacement (psychology) , compass , azimuth , function (biology) , inertia , relocation , inertial navigation system , work (physics) , transversal (combinatorics) , course (navigation) , set (abstract data type) , simulation , control theory (sociology) , expression (computer science) , computer science , engineering , geodesy , artificial intelligence , aerospace engineering , mathematics , physics , orientation (vector space) , mechanical engineering , geology , psychotherapist , mathematical analysis , biology , psychology , geometry , control (management) , classical mechanics , quantum mechanics , evolutionary biology , programming language
In work is specified, that navigation safety of sailing to a great extent depends on the errors of the navigation measuring, and also from operating reliability of sensors of navigation information. It is also marked that descriptions of exactness of gyroscopic compass influence on navigation safety. Because sizes of his errors the requirements providing the set exactness of determination of azimuthal directions are produced. At maneuvering of ship there are inertia errors which cause appearance of lateral displacement of ship after his turn, that can lead to the navigation failure of ship. Therefore, there is the problem of decline of lateral relocation bias of ship which appears after his turn, that conduces to the decline of navigation accident rate. The analysis of the last achievements and publications is resulted in work, the decision of the considered problem and selection of parts unsolved before is begun in which. Within the framework of theory endless rapid maneuver, expression for total inertia deviation which depends on character of maneuver and breadth of sailing of ship is resulted in the publication. It is shown that transversal relocation bias of ship is an integral function in relation to the function of deviation and for estimation of its size analytical expression is resulted, which it is visible from, that transversal displacement also depends on speed of ship after a maneuver. It is marked in the publication, that transversal displacement is more complete description of exactness of gyrocompass on the protracted time domains, as it represents the consequences of influencing of maneuvering on a gyrocompass in the «smoothed» kind out. From these positions, obviously, that inertia deviation is the index of instantaneous exactness of gyrocompass. Two methods of decline of transversal displacement of ship are offered, thus for estimation of efficiency of the offered procedure of indemnification of lateral displacement of ship the computer program allowing to produce the calculation of the crooked dependence of total inertia error from time with the subsequent graphic reflection was developed. The program also expects and builds the graphs of dependence of lateral displacement without indemnification, total lateral displacement with partial indemnification and with complete indemnification. The results of computer graphic design are resulted, which it ensues from, that total inertia error and lateral without indemnification is multiplied displacements with growth of breadth, during partial indemnification total lateral displacement diminishes approximately in 5 times, and at the variable additional amendment of course lateral displacement of ship is absent.