The Wave Induced Motions of a Tension Leg Platform in Deep Water
Conference/JournalOffshore Technology Conference (OTC), Houston, Texas, USA
Date1 May 1981
DOIhttps://doi.org/10.4043/4074-MS
This paper deals with the behaviour of a four column semi-submersible type Tension Leg Platform in 450 m water depth under the influence of regular and irregular long-crested waves.
Results of computations based on three-dimensional potential theory are compared with results of model tests carried out in the Seakeeping Basin of the Netherlands Ship Model Basin. This comparison not only concerns the wave frequency oscillatory motions of the platform and the forces in the mooring tethers but also the mean and low frequency motions induced by second order wave drift forces.
Some non-linearities appear to be present in the platform motions in the vertical plane and the forces in the mooring tethers, but in general the applicability of advanced computational methods for predicting in the design stage the motion behaviour and the mooring forces of a semi-submersible TLP in deep water is confirmed.
This paper is copyrighted material and cannot be shared. Due to copyright policy MARIN is not allowed to reproduce and distribute papers written for and presented at the OTC (Offshore Technology Conference), ISOPE (International Ocean and Polar Engineering Conference) and SPE (Society of Petroleum Engineers). You can order these papers through
www.OnePetro.org.
For this specific paper see: www.onepetro.org/conference-paper/OTC-4074-MS.
Results of computations based on three-dimensional potential theory are compared with results of model tests carried out in the Seakeeping Basin of the Netherlands Ship Model Basin. This comparison not only concerns the wave frequency oscillatory motions of the platform and the forces in the mooring tethers but also the mean and low frequency motions induced by second order wave drift forces.
Some non-linearities appear to be present in the platform motions in the vertical plane and the forces in the mooring tethers, but in general the applicability of advanced computational methods for predicting in the design stage the motion behaviour and the mooring forces of a semi-submersible TLP in deep water is confirmed.
This paper is copyrighted material and cannot be shared. Due to copyright policy MARIN is not allowed to reproduce and distribute papers written for and presented at the OTC (Offshore Technology Conference), ISOPE (International Ocean and Polar Engineering Conference) and SPE (Society of Petroleum Engineers). You can order these papers through
www.OnePetro.org.
For this specific paper see: www.onepetro.org/conference-paper/OTC-4074-MS.
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stability, seakeeping and ocean engineeringwaves, impacts and hydrostructuralcfd developmentcfd/simulation/desk studiesmeasurements and controldata sciencetime-domain simulationsrenewablesoil and gasinfrastructuremarine systemslife at seamodel testingloads and responsesmooring and offloadingmotionssimulationswaves & motionsoffshore engineering