Análisis numérico de diferentes geometrías en el análisis dinámico en la plataforma de gravedad.

Autores/as

  • Tina Rezaei M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran
  • Atefeh Mosahebi Mohammadi M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran
  • Elham Mina Ph.D Student of Hydraulic Structures, Tarbiat Modares University, Faculty of Environmental Civil Engineering, Tehran, Iran
  • Mohammad Reza Kavianpour Professor, K.N.T. University of Technology, Faculty of Civil Engineering, Tehran, Iran

DOI:

https://doi.org/10.15649/2346075X.764

Palabras clave:

gravity-based structures (GBS) hydrodynamic, Ansys Aqwa, JONSWAP, rocking fluctuation

Resumen

On Gravity platform Dynamic Response is a support structure held in place by gravity. Given that the gravity platforms are supported
by the sea bed but not attached to the ground, the motion of them is known as a rocking fluctuation. During the fluctuations, the
platform maybe overturned if the angle is large. In this study, using Ansys Aqwa hydrodynamic software and analytical methods with
regard to the performance, the dynamic interaction of platform’s geometry on hydrodynamic forces have been simulated. The
objective of this study was to analyze the hydrodynamic parameters of the sea and rocking fluctuations of gravity platforms under the
impact of regular wave’s moment considering the soil mechanics and hydrodynamic features of the structure. In order to achieve
the objective the hydrodynamic forces using numerical simulations and analytical methods for one column and three hollow columns
platforms were analyzed. Finally, responses of the platform to irregular waves were studied using numerical simulation. The results
showed that with the increasing of the depth, the impact of wave’s force and moment on the base of platform are reduced through
exponential relationship. The reductions are due to the effective depth that is equal to half the wave length. The results suggest
that the response of the rocking motion of gravity platform shows significant changes in relation to height and wavelength. Based on
the curves fitted to the data of the fluctuation angle, sustainability of the platform in the rocking motion can be thoroughly and
completely investigated.

Biografía del autor/a

Tina Rezaei, M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran

M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran.

Atefeh Mosahebi Mohammadi, M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran

M.Sc. Student of Hydraulic Structures, Azad University, Science and Research Branch, Faculty of Water Engineering, Tehran, Iran

Elham Mina, Ph.D Student of Hydraulic Structures, Tarbiat Modares University, Faculty of Environmental Civil Engineering, Tehran, Iran

Ph.D Student of Hydraulic Structures, Tarbiat Modares University, Faculty of Environmental Civil Engineering, Tehran, Iran

Mohammad Reza Kavianpour, Professor, K.N.T. University of Technology, Faculty of Civil Engineering, Tehran, Iran

Professor, K.N.T. University of Technology, Faculty of Civil Engineering, Tehran, Iran

Referencias

Dean, E. T. R., “Offshore Geotechnical Engineering”, 1st edition, Thomas Telford Limited, 2010.

Wilson, J. F., “Dynamics of Offshore Structures”, John Wiley & Sons, 2003.

McCormick, M. E., “Ocean Engineering Mechanics”, Cambridge University Press, 2010.

Mogridge, G. R., Jamieson, W. W., “Wave Forces on Large Circular Cylinders:A Design Method”, Hydraulics Laboratory, National Research Council of Canada, Report MH-111, 1976.

Stansberg, C. T., Baarholm, R., Fokk, T., Gudmestad, O. T., Haver, S., “Wave amplification and possible deck impact on gravitybased structure in probability extreme crest heights”, 23rd international conference on offshore mechanics and arctic engineering, 2004. https://doi.org/10.1115/OMAE2004-51506

Chacrabarti S.K.,“Hydrodynamics Of Offshore Structures ”,(1994),Mechanics Publication.

Barati M.,“ Numerical model diffraction waves around the base of calculation force of the waves offshore platforms ”,(2002),Thesis of Tehran Univer

Revista Innovaciencia Facultad de Ciencias Exactas, Físicas y Naturales

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Publicado

2019-10-25

Cómo citar

Rezaei, T. ., Mohammadi, A. M. ., Mina, E. ., & Reza Kavianpour, M. . (2019). Análisis numérico de diferentes geometrías en el análisis dinámico en la plataforma de gravedad. Innovaciencia, 7(2). https://doi.org/10.15649/2346075X.764

Número

Vol. 7 Núm. 2 (2019)

Sección

Artículo original de investigación e innovacion
Crossref
Scopus
Google Scholar
Europe PMC

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