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A new formulation for equivalent hydrodynamic modeling of the Jack-up legs

Daghigh, M ; Sharif University of Technology | 2002

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  1. Type of Document: Article
  2. DOI: 10.1115/OMAE2002-28342
  3. Publisher: 2002
  4. Abstract:
  5. Regulations of offshore structures suggest the application of Morison type equation for the estimation of forces induced by wave and current on the slender bodies of Jacket and Jack-up structures. However, common values of hydrodynamic coefficients are rarely defined in two different regulations. Estimation of global responses of Jack-up structure, the simplified geometrical model is used, therefore we will try to modify the DNV formulations in order to estimate the hydrodynamic forces on equivalent pile. Finally, the forces on the real structure and the equivalent pile model are compared and it has been shown that the approximation of the inertia forces has more accuracy comparing to the drag force, due to the nonlinear effect in drag term
  6. Keywords:
  7. Equivalent Pile ; Hydrodynamic Loading ; Jack-up Structure ; Morison Equation
  8. Source: Proceedings of the 21st International Conference on Offshore Mechanics and Arctic Engineering (OMAE), Oslo, 23 June 2002 through 28 June 2002 ; Volume 1 , 2002 , Pages 605-611
  9. URL: https://asmedigitalcollection.asme.org/OMAE/proceedings-abstract/OMAE2002/36118/605/293102