Hydro-structural behavior of LNG membrane containment systems under breaking wave impacts: Findings From the Sloshel Project

AuthorsBogaert, H., L'eonard, S., Marhem, M., Lecl'ere, G., Kaminski, M.L.
Conference/JournalThe Twentieth International Offshore and Polar Engineering Conference (ISOPE), Beijing, China
DateJun 25, 2010
The behaviour of the NO96 membrane containment system when subjected to breaking waves is presented in this paper. The data obtained from the full scale impact tests in the Sloshel project are used. Uni-directional breaking waves were generated and interacted with a real membrane containment system. Three types of hydro-structural interaction can be distinguished based on the relative position between load durations and natural periods. The aim of this paper is to identify which type of interaction occurred between the breaking wave and the NO96. It is demonstrated that it is not straightforward to define the interaction type by a comparison of observed load durations and predefined mode shapes. As an alternative, it was investigated whether the type of interaction can be deduced from its effect on the load and on the response with respect to a quasi-static interaction.

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Tags
waves, impacts and hydrostructuralrenewablesoil and gasinfrastructuremarine systemslife at seamonitoringtrials and monitoringhydro-elasticitysloshingfull scalelngoffshore engineering