Print Email Facebook Twitter An experimental and numerical study on jack-up dynamic behavior Title An experimental and numerical study on jack-up dynamic behavior Author Liu, P. Faculty Civil Engineering and Geosciences Department Offshore Technology Date 1991-01-01 Abstract This paper presents the more salient results of an experimental and numerical study on jack-up dynamic behavior. The laboratory studies of three principle jack-up platform models were carried out in both regular and irregular waves. The data from irregular wave tests were analyzed in both the probability domain and frequency domain supported by a careful error analysis. Computer simulations were carried out in the time domain using a nonlinear, dynamic, multiple degree of freedom software which includes various hydrodynamic interaction options. The experimental results and associated computer simulations demonstrate that nonlinearities are important even with the present simplified model testing and different nonlinearities have different (sometimes compensating) influences on the structure's dynamic behavior. Some more specific results include: (1) The stiffness obtained from static tests can be significantly lower than that inferred from dynamic vibration tests; (2) relative motions from structural compliance are such that they cannot be responsibly neglected in the hydrodynamic computation; and (3) inclusion of the P-O effect in the structural schematization is essential for the jack-up simulations. Subject jack-updynamicshydrodynamicsnonlinearmodelexperimentsimulationrandom To reference this document use: http://resolver.tudelft.nl/uuid:2ff17d86-8f98-483e-ab27-7fe2db97128d Publisher Delft University of Technology ISSN 0046-7316 Source HERON, 36 (3), 1991 Part of collection Institutional Repository Document type journal article Rights (c) 1991 Liu, P. Files PDF Liu_1991.pdf 11.08 MB Close viewer /islandora/object/uuid:2ff17d86-8f98-483e-ab27-7fe2db97128d/datastream/OBJ/view