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    Wyświetlanie 1-4 z 4
    Tytuł:
    Examples of weaknesses of the 2nd Generation Intact Stability Criteria
    Autorzy:
    Szozda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/359914.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ship stability
    stability regulations
    2nd Generation Intact Stability Criteria
    Opis:
    One of the main tasks of the Sub-committee on Ship Design and Construction (SDC) of the International Maritime Organization (IMO) is development of the 2nd Generation Intact Stability Criteria. The paper presents the framework and the approach agreed by the Sub-committee. The framework bases on the concept of stability failure and vulnerability assessment. However, the criteria, standards and regulations developed so far have weaknesses that may prevent some IMO Member States from adoption of the regulations on the Maritime Safety Committee (MSC) level. The paper presents some of the weaknesses that are the most important from the Author’s point of view. Awareness of the weaknesses may facilitate the future work of the Sub-committee and its working groups.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 80-87
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Need of the Revision of Passenger Ships’ Stability Criterion on Account of Turning
    Autorzy:
    Szozda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/116177.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Ship Stability
    Passanger Ship
    Turning of Ship
    Passanger Ship's Stability
    Stability Criteria
    Passanger Ship's Stability Criterion
    International Code on Intact Stability
    Ship’s Heel
    Opis:
    The angle of heel on account of turning is one of the mandatory stability criteria for passenger ships. Formula used for calculations of this criterion contained in the International Code on Intact Stability [13] is criticized at present. Agendas of the Sub-committee on Ship Design and Construction (SDC) for the first (2014) and the second (2015) sessions contain the item on revision of this criterion and corresponding regulation. The paper presents some shortcomings of the criterion. Turning tests of a freely maneuvering model of a passenger ship have been executed aiming at gathering data for the future discussion and its facilitation. The paper presents results of the tests together with preliminary conclusions that confirm the need of the revision of the regulation and put forward concerns on application of such values as initial metacentric height (GMo) and righting lever curve (GZ(?)) calculated for a ship laying still for calculation of a ship’s heel caused by turn.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 393-399
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stability criteria as constraints in a fleet of ships optimisation problem
    Autorzy:
    Oleksiewicz, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/962812.pdf
    Data publikacji:
    2004
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    maritime transportation
    computer-aided ship design
    optimisation
    intact stability criteria
    Opis:
    The paper has been written within the European EUREKA Project E!2772, initiated and completed at the Faculty of Ocean Engineering & Ship Technology, Gdansk University of Technology in the years 2001-2003. A problem has been solved concerning mathematical optimisation of a fleet of multipurpose sea-river vessels for European short-shipping reguIlar lines, in the area of The North and Baltic Seas, on the level of marine transportation , task, by the non-linear programming methods with constraints. A method is proposed which enables existing criteria of stability to be included as constraints in the optimisation model of a jleet. In the numerical examples, three typical criteria of intact stabiliry: by IMO, PRS, and HSMB have been selected to demonstrate a post-optimisation feasibility analysis of principal parameters of ships.
    Źródło:
    Polish Maritime Research; 2004, S 1; 39-53
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Second Generation Intact Stability Criteria: on the validation of codes for direct stability assessment in the framework of an example application
    Autorzy:
    Bulian, G.
    Francescutto, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/260465.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    large amplitude ship motions
    second generation intact stability criteria
    nonlinear roll
    sub-harmonic resonance
    validation
    Opis:
    The Sub-Committee on Stability and Load Lines and on Fishing Vessels Safety (SLF) of the International Maritime Organization (IMO) has undertaken the development of so-called “Second Generation Intact Stability Criteria” (SGISC) with the intention of providing a new set of rules covering those phenomena which are not properly covered by present, mostly semi-empirical, requirements. The first two levels of the envisioned 3+1 tiers structure of SGISC are so-called “vulnerability assessment” levels: most of the discussion has so far been dedicated to these levels. At the highest level there is the so-called “Direct Stability Assessment”, which is also strictly linked with the development of ship-specific “Operational Guidance”. Recent discussion on the topic of “Direct Stability Assessment” (DSA) has touched the issue of “validation” of numerical codes to be employed at this level. Stimulated by, and in view of, the ongoing IMO discussion, this paper presents the results of a recent series of experiments in beam waves (mono-/bichromatic, irregular) and associated simulations based on a 6-DOF blended code. Nonlinear harmonic and sub-harmonic resonances are observed and simulated.
    Źródło:
    Polish Maritime Research; 2013, 4; 52-61
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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