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Memorias de investigación
Communications at congresses:
InfIuence of wave induced second-order forces in semisubmersible fowt mooring design
Research Areas
  • Mechanical engineering,
  • Naval engineering
The main focus of this paper is on hydrodynamic modelling of a semisubmersible platform (which can support a 1.5MW wind turbine and is composed by three buoyant columns connected by bracings) with especial emphasis on the estimation of the wave drift components and their effects on the design of the mooring system. Indeed, with natural periods of drift around 60 seconds, accurate computation of the low-frequency second-order components is not a straightforward task. As methods usually adopted when dealing with the slow-drifts of deep-water moored systems, such as Newman?s approximation, have their errors increased by the relatively low resonant periods, and as the effects of depth cannot be ignored, the wave diffraction analysis must be based on full Quadratic Transfer Functions (QTF) computations. A discussion on the numerical aspects of performing such computations is presented, making use of the second-order module available with the seakeeping software WAMIT®. Finally, the paper also provides a preliminary verification of the accuracy of the numerical predictions based on the results obtained in a series of model tests with the structure fixed in bichromatic waves.
32nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE2013)
Nantes, Francia
Start Date
End Date
From page
To page
Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
  • Autor: Carlos Lopez Pavón (ACCIONA ENERGÍA)
  • Autor: Rafael Watai (Universidad de Sao Paulo)
  • Autor: Felipe Ruggeri (Universidad de Sao Paulo)
  • Autor: Alexandre N. Simos (Universidad de Sao Paulo)
  • Autor: Antonio Souto Iglesias (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: CEHINAV (Canal de Ensayos Hidrodinámicos de la E.T.S.I. Navales)
  • Departamento: Ciencias Aplicadas a la Ingeniería Naval
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)