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    Wyświetlanie 1-3 z 3
    Tytuł:
    Comparison of selected parametric methods for prediction of inland waterways ship hull resistance in towing tank test
    Autorzy:
    Karczewski, A.
    Kozak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/259275.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ship resistance
    inland waterways
    Opis:
    In the paper selected approximate methods for calculation of inland waterways ship resistance and their verification by towing tests, compared on the example of a small urban ferry, are presented. The test results are made for both the bare hull and the hull with appendages (skeg, azimuthal propeller). Significant differences between results of the theoretical methods and experimental ones, especially in the case of the model with skegs and propulsion, are pointed out. The purposefulness of using several parametric methods and the use of average results at the preliminary design stage were also discussed.
    Źródło:
    Polish Maritime Research; 2018, S 1; 63-67
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Variant designing in the preliminary small ship design process
    Autorzy:
    Karczewski, A.
    Kozak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/259313.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ship design
    design methodology
    optimization algorithms
    Opis:
    Ship designing is a complex process, as the ship itself is a complex, technical multi-level object which operates in the air/water boundary environment and is exposed to the action of many different external and internal factors resulting from the adopted technical solutions, type of operation, and environmental conditions. A traditional ship design process consists of a series of subsequent multistage iterations, which gradually increase the design identification level. The paper presents problems related to the design of a small untypical vessel with the aid of variant methodology making use of optimisation algorithms. The computer-aided design methodology has been developed which does not need permanent reference to already built real ships and empirical-statistical relations. Possibilities were indicated for integrating together early design stages, and parallel designing of hull shape and parameters.
    Źródło:
    Polish Maritime Research; 2017, 2; 77-82
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design methodology for small passenger ships on the example of the ferryboat Motława 2 driven by hybrid propulsion system
    Autorzy:
    Gełesz, P.
    Karczewski, A.
    Kozak, J.
    Litwin, W.
    Piątek, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/259617.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    small passenger ships
    urban ship
    design methodology
    hybrid propulsion system
    Opis:
    Dynamic development in practically all fields of science and engineering has not passed over shipbuilding . In last years, engineers got to their use computer software which makes it possible to perform strength and hydrodynamic calculations as well as to visualize design projects in 3 D space [1-4]. At their disposal they have full spectrum of modern solutions associated with the use of advanced materials and technologies [5-7]. More and more attention is also paid to impact onto the natural environment [8,9]. Every new object must influence the environment as low as possible, beginning from building phase through its service life up to final utilization – such approach is called „green-shipping”. However , not only practical reasons are important . Clients , i.e. ship owners and passengers of ships paid more and more attention to image of floating units. During decision taking on that from whom a transport service has to be ordered , the most modern ships of an attractive image matching with place and time, are often taken into consideration. Such situation has become a basis for an idea of working out a concept of a new ferryboat for National Maritime Museum. As the ferry has to navigate in „the heart of the town”, then , apart from strictly marine and engineering aspects , an important factor of its designing is its expected image - a set of significant meanings and emotions written in architecture language. The new ferryboat , like its historical predecessors , will never leave urban water routes.
    Źródło:
    Polish Maritime Research; 2017, S 1; 67-73
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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