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Wyszukujesz frazę "Shevchenko, M.V." wg kryterium: Autor

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Antenna for marine radar with supperdirectivity properties
    Autorzy:
    Koshevyy, V. M.
    Shevchenko, A. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116049.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    marine radars
    supperdirectivity properties
    radar antenna
    antenna
    antenna directivity
    radar cross section (RCS)
    radar
    reception antenna diagram
    Opis:
    The reception antenna diagram side lobe’s level suppression algorithm for marine radar by means of antenna array with only a few tuning elements of antenna array is considered. The others no tuning elements of array are choosing for obtain a given value of average side lobe level suppression and with given value of antenna directivity without using of numerical optimization procedures. Special algorithm of interaction of these no tuning elements for realizing Supperdirectivity properties is used. The structural diagram of array is presented. The efficiency of suggested design has been investigated.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 317-324
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Recommendations for Training of Crews Working on Diesel-Electric Vessels Equipped with Azimuth Thrusters
    Autorzy:
    Pipchenko, O. D.
    Tsymbal, M.
    Shevchenko, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/116343.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    diesel-electric vessels
    azimuth thrusters
    crew training
    ship propulsion
    power plant system
    azimuth propulsion
    risk matrix
    emergency steering
    Opis:
    This study addresses the problem of training the officers, which are assigned to an electrical-driven vessels equipped with azimuth thrusters. A pair of omnidirectional thrusters in combination with power plant system containing several diesel generators imply a potential for a variety of different emergency scenarios, which also includes partial or full loss of control or blackout. These fault scenarios were classified in the article with predefined risk levels depending on the area, time limitation, mode of operation and fault itself. Mutual responsibilities and action algorithms for bridge and engine teams in a step-by-step manner have been developed for each scenario. Personnel behavioral differences in both expected and unexpected emergencies have also been studied.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 567-571
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Features of an ultra-large container ship mathematical model adjustment based on the results of sea trials
    Autorzy:
    Pipchenko, O. D.
    Tsymbal, M.
    Shevchenko, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/116848.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    containerization
    container Ship
    ultra-large container ship
    zig-zag test
    container shipping
    mathematical model
    sea trial test
    Nelder-Mead Method
    Opis:
    The research addresses the problem of an ultra-large container ship mathematical model adjustment based on sea trials. In order to verify the model’s adequacy, simulated data had to be compared to the trial report data, which was obtained in ballast condition with significant trim. In such circumstances, model coefficients cannot be calculated by known methods and have to be corrected as per trial data. It is proposed to determine translational motion coefficients first. To get optimal results, it was also proposed to divide the objective function into kinematic and dynamic components, with each component being assigned a weighting factor. A separate objective function component was assigned to the zig-zag maneuver, which includes the first and second overshoot angles.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 163-170
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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