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Publicações
Skourup, J., Sterndorff, M.J., Smith, S.F., Cheng, X., Ahilan, R.V., Guedes Soares, C. e Pascoal, R. (2004), “Model Tests with an FPSO in Design Environmental Conditions”, Actas da 23rd International Conference on Offshore Mechanics and Arctic Engineering (OMAE 2004), 20 – 25 June, Vancouver, Canada, Paper OMAE2004-51618
An extensive model test programme has been carried out with a turret moored segmented FPSO model in design environmental conditions. The model tests were carried out in the 3D offshore wave basin at DHI Water & Environment at a scale of 1:80. The objectives of the model tests were two-fold: 1. To determine quadratic transfer functions for the slow-drift forces 2. To determine wave induced loads in the turret moored segmented FPSO in design environmental conditions. The model tests were made with a wide range of mono-chromatic and bi-chromatic wave conditions and also with long- and short crested irregular wave conditions. For the tests in design conditions the irregular waves were combined with the corresponding wind condition. The model (which was segmented into two parts) was equipped with instruments to measure forces in mooring lines and turret, 6 dof motions of the FPSO, bending moments on the FPSO hull and wave run-up on the FPSO model. The present paper focuses of the measured results in design environmental conditions. Special emphasis will be given to the analyses of forces in mooring lines and turret and analyses of the bending moment on the FPSO hull. The analyses of the motions (QTFs and RAOs) will be presented in a separate paper at the OMAE conference in Vancouver, Canada, 2004. The model test programme is part of the REBASDO project, funded by the European Union, and involving companies and institutions from several European Countries. The overall objective with the REBASDO project is to develop met-ocean and hydrodynamic models, which will capture the significant features of directional wave effects on FPSO design so that relevant enhancements in the design process can be incorporated in the future.
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