Tests on dynamic ice-structure interaction

Tuomo Kärnä, Peter Jochmann, Mauri Määttänen, Karl-Ulrich Evers, Kari Kolari, Bi Xiangjun, Petter Martonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    14 Citations (Scopus)


    This paper addresses the problem of ice induced vibration of offshore structures. Compliant structures having vertical ice walls may suffer from very severe vibrations. Several theories have been proposed to predict these vibrations. However, physical details of this phenomenon are not fully understood. Conical structures are deemed to be less sensitive to vibrations. Recent full-scale measurements made in the Bohai Bay indicate that also these structures my experience excessive vibrations caused by ice. Indentation tests were done at the ARCTEC laboratory at the Hamburg Ship Model Basin, Hamburg to clarify details of ice induced vibration. Sheets of columnar grained saline ice was used in the tests. The parameters that were varied included the structure’s compliance and damping, indentation velocity and the structural geometry at the water line. The paper provides tests results that were obtained using vertical and conical model structures.
    Original languageEnglish
    Title of host publicationProceedings of the ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering
    Subtitle of host publicationMaterials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops
    PublisherAmerican Society of Mechanical Engineers (ASME)
    ISBN (Print)0-7918-3683-5
    Publication statusPublished - 2003
    MoE publication typeA4 Article in a conference publication
    Event22nd International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2003 - Cancun, Mexico
    Duration: 8 Jun 200313 Jun 2003
    Conference number: 22


    Conference22nd International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2003
    Abbreviated titleOMAE 2003


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