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Wyszukujesz frazę "ship design parameters" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Approximation of the index for assessing ship sea-keeping performance on the basis of ship design parameters
Autorzy:
Cepowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/259570.pdf
Data publikacji:
2007
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sea-keeping qualities
sea-keeping performance index
approximation
ship design parameters
artificial neural networks
rolling
slamming
green-water shipping
Opis:
This paper presents a new approach which makes it possible to take into account seakeeping qualities of ship in the preliminary stage of its design. The presented concept is based on representing ship’s behaviour in waves by means of the so called operational effectiveness index. Presented values of the index were calculated for a broad range of design parameters. On this basis were elaborated analytical functions which approximate the index depending on ship design parameters. Also, example approximations of the index calculated by using artificial neural networks, are attached. The presented approach may find application to ship preliminary design problems as well as in ship service stage to assess sea-keeping performance of a ship before its departure to sea.
Źródło:
Polish Maritime Research; 2007, 3; 21-26
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of optimum hull form for passenger car ferry with regard to its sea-keeping qualities and additional resistance in waves
Autorzy:
Cepowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/258898.pdf
Data publikacji:
2008
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sea-keeping qualities
roll-on/roll-off ferry ship
rolling
transverse accelerations
vertical accelerations
motion sickness index
additional resistance in waves
ship hull form
ship design parameters
artificial neural networks
fuzzy logic
Opis:
This paper presents a method which makes it possible to determine optimum hull form of passenger car ferry with regard to selected sea-keeping qualities and additional resistance in waves. In the first phase of investigations a hull form characterized by the highest qualities was selected from the list of similar ships. Next, its optimum dimension ratios were determined. Design criteria were formulated by using a method based on deterministic scenarios, but objective functions of partial targets were determined in the form of artificial neural networks. To select the best design variants elements of fuzzy logic were used, that made it possible a.o. to show merits of the design by means of linguistic variables. Such approach made it possible to find the best hull form and its dimensions from the point of view of all considered criteria simultaneously.
Źródło:
Polish Maritime Research; 2008, 2; 3-11
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the modeling of car passenger ferryship design parameters with respect to selected sea-keeping qualities and additional resistance in waves
Autorzy:
Cepowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/258828.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sea-keeping qualities
roll-on/roll-off ferryship
rolling
motion sickness index
lateral accelerations
additional resistance in waves
ship design parameters
modeling
artificial neural networks
optimization
Pareto method
Opis:
This paper presents the modeling of car passenger ferryship design parameters with respect to such design criteria as selected sea-keeping qualities and additional resistance in waves. In the first part of the investigations approximations of selected statistical parameters of design criteria of ferryship were elaborated with respect to ship design parameters. The approximation functions were obtained with the use of artificial neural networks. In the second part of the investigations design solutions were searched for by applying the singleand multi-criterial optimization methods. The multi-criterial optimization was performed by using Pareto method. Such approach made it possible to present solutions in such form as to allow decision makers (shipowner, designer) to select solutions the most favourable in each individual case.
Źródło:
Polish Maritime Research; 2009, 3; 3-10
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of basic parameters of Ro-Pax ferries in the Baltic Sea as guidelines for its preliminary design
Autorzy:
Gucma, L.
Raczkowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/259872.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
Ro-Pax ferry
ship design
ferry traffic
operating parameters
maneuvering parameters
analysis of ship dimensions
Opis:
This paper presents results of an analysis of the operating and maneuvering parameters (length, width, draft, main propulsion power and maneuvering equipment, and windage area) of the Ro-Pax ferries over 150m in length. The analysis takes into accounts all ferries operating in the Baltic Sea in 2017. The work also includes route analysis of the collected Ro-Pax units. The influence of port infrastructure is also discussed. The mean optimal Baltic Sea Ro-Pax ferry and its parameters for short term and long term forecasts are presented. This paper may be used as a primary guideline for the determining the optimal Ro-Pax ferry dimensions size for the Baltic lines in terms of preliminary ship design.
Źródło:
Polish Maritime Research; 2018, 3; 44-53
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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