A computational method is described for calculating the detailed dynamics of fixed offshore platform cranes based on finite element techniques. The method can be used to calculate stresses in individual areas of the crane during the lift; the calculations are valid for any typical offshore fixed platform boom crane. Transient amplification factors are quoted. The dynamical behaviour of the crane is described including the effect of damping introduced into the boom hoist system and discussed with regard to the operation of crane safety systems. The main conclusion is that crane dynamic motion can delay recognition of an emergency situation and that the introduction of damping can considerably reduce the dynamics related problems and reduce the derating of the crane. (Se)


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    Titel :

    Operational dynamics of an offshore crane


    Weitere Titelangaben:

    Dynamische Kraefte bei Kraenen im Offshorebetrieb


    Beteiligte:
    Kenny, F.M. (Autor:in)


    Erscheinungsdatum :

    1978


    Format / Umfang :

    8 Seiten, 11 Bilder, 2 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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