Numerical evaluation of energy absorption in ship-offshore fixed platform collisions

J. Travanca, Hong Hao

    Research output: Chapter in Book/Conference paperConference paper

    1 Citation (Scopus)

    Abstract

    Copyright © 2014 by ASME. Both the maritime traffic and the number of built offshore platforms have been continuously increasing over recent times. Among the structures built offshore, the fixed type constitutes the majority. The consequent diversity of plausible collision scenarios involving offshore platforms and passing ships must therefore consider aspects such as different ship size, different impact energy or different impact locations. For high energy collisions, large deformations are expected on both the platform and ship structures. It is expected that part of the energy absorption in the platform is confined to localized zones where plastic deformations take place, although the elastic strain energy may also be significant. For such impact problems, the amounts of strain energy in each structure are mainly dependent on the relative stiffness of the structures. By taking different ship and platform configurations as well as different contact points between the two bodies, different relative stiffness of the two structures can be tested in order to provide a clearer understanding of the dissipation of strain energy. The possible plastic deformation mechanisms are analyzed and simplified approaches are considered for prediction in comparison with the numerical results carried out by finite element analysis. Based on the results, some evaluations are made with respect to the code of practice in offshore platform design against ship impact.
    Original languageEnglish
    Title of host publicationNumerical EvaluatiProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAEon of Energy Absorption in Ship-Offshore Fixed Platform Collisions
    Place of PublicationSan Francisco, California
    PublisherCopyright © 2014 by ASME
    Pages1-10
    Volume4B
    ISBN (Print)9780791845431
    DOIs
    Publication statusPublished - 2014
    EventNumerical evaluation of energy absorption in ship-offshore fixed platform collisions - San Francisco
    Duration: 1 Jan 2014 → …

    Conference

    ConferenceNumerical evaluation of energy absorption in ship-offshore fixed platform collisions
    Period1/01/14 → …

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    Cite this

    Travanca, J., & Hao, H. (2014). Numerical evaluation of energy absorption in ship-offshore fixed platform collisions. In Numerical EvaluatiProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAEon of Energy Absorption in Ship-Offshore Fixed Platform Collisions (Vol. 4B, pp. 1-10). San Francisco, California: Copyright © 2014 by ASME. https://doi.org/10.1115/OMAE2014-24118