This paper describes a method of quantifying the impact effects throughout an offshore platform crane structure when lifting from supply boats in various sea states. The method employs Multi-Degree of Freedom dynamic analysis techniques. It is particularly relevant to cranes mounted on high (flexible) pedestals and in addition to providing a method for rating the cranes, it can be used to generate fatigue spectra for the various crane components. An earlier published method for determining the impact effects is also described. This method ignored the effect of the masses in the crane structure and some comparison of results of the two methods is included. (Se)
Method for rating high pedistal cranes for lifting from supply boats in various sea states
Verfahren zur Bewertung hochaufgestellter Kraene auf Bohrinseln zum Entladen von Schiffen bei unterschiedlichem Seegang
European offshore petroleum conf. and exhibition, Earls Court ; 2 , Oct ; 125-132
1978
8 Seiten, 4 Bilder, 1 Tabelle, 3 Quellen
Aufsatz (Konferenz)
Englisch
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