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    Transition effects on ship sinkage in highly restricted waterways

    New search for: Alderf, N
    New search for: Lefranĉois, E
    New search for: Sergent, P
    New search for: Debaillon, P

    In this paper, a mathematical model for ship squat in highly restricted waterways is proposed. This model, which is based on the extension of Schijf's (1949) theory to dynamic effects, indicates stable and unstable squat positions for a ship. Furthermore, the transition effects are integrated into this model to simulate the behaviour of a vessel during and after an acceleration phase. This model shows that, although the vessel speed is lower than the Schijf limiting speed, grounding due to the oscillations generated at the end of the acceleration phase may occur when the unstable equilibrium position is reached. The results given by the mathematical model are validated by a numerical model based on finite element analysis.

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    Transition effects on ship sinkage in highly restricted waterways

    New search for: Alderf, N
    New search for: Lefranĉois, E
    New search for: Sergent, P
    New search for: Debaillon, P

    In this paper, a mathematical model for ship squat in highly restricted waterways is proposed. This model, which is based on the extension of Schijf's (1949) theory to dynamic effects, indicates stable and unstable squat positions for a ship. Furthermore, the transition effects are integrated into this model to simulate the behaviour of a vessel during and after an acceleration phase. This model shows that, although the vessel speed is lower than the Schijf limiting speed, grounding due to the oscillations generated at the end of the acceleration phase may occur when the unstable equilibrium position is reached. The results given by the mathematical model are validated by a numerical model based on finite element analysis.

    Access

    Check access
    Check availability in my library
    Order at Subito €

    Transition effects on ship sinkage in highly restricted waterways

    New search for: Alderf, N
    New search for: Lefranĉois, E
    New search for: Sergent, P
    New search for: Debaillon, P

    In this paper, a mathematical model for ship squat in highly restricted waterways is proposed. This model, which is based on the extension of Schijf's (1949) theory to dynamic effects, indicates stable and unstable squat positions for a ship. Furthermore, the transition effects are integrated into this model to simulate the behaviour of a vessel during and after an acceleration phase. This model shows that, although the vessel speed is lower than the Schijf limiting speed, grounding due to the oscillations generated at the end of the acceleration phase may occur when the unstable equilibrium position is reached. The results given by the mathematical model are validated by a numerical model based on finite element analysis.

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    Title:

    Transition effects on ship sinkage in highly restricted waterways

    Contributors:

    Alderf, N (author) / Lefranĉois, E (author) / Sergent, P (author) / Debaillon, P (author)

    Published in:

    Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment ; 224 ; 141-153

    Publication date:

    2010-06-01

    Size:

    13 pages

    ISSN:

    2041-3084 , 1475-0902

    DOI:

    https://doi.org/10.1243/14750902JEME170

    Type of media:

    Article (Journal)

    Type of material:

    Electronic Resource

    Language:

    English

    Keywords:

    mass—spring analogy , vertical stability of a ship , vessel acceleration , finite elements , fluid—structure interaction , potential flow , coupling scheme , squat

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