Ocean Systems Engineering

  • 제3권2호
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  • Pages.149-165
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  • 2013
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Wave induced motion of a triangular tension leg platforms in deep waters

  • Abou-Rayan, A.M. (Department of Civil Engineering, Northern Border University) ;
  • El-Gamal, Amr R. (Department of Civil Engineering Technology, Benha University)
  • 투고 : 2013.05.27
  • 심사 : 2013.06.15
  • 발행 : 2013.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

Tension leg platforms (TLP's) are highly nonlinear due to large structural displacements and fluid motion-structure interaction. Therefore, the nonlinear dynamic response of TLP's under hydrodynamic wave loading is necessary to determine their deformations and dynamic characteristics. In this paper, a numerical study using modified Morison Equation was carried out in the time domain to investigate the influence of nonlinearities due to hydrodynamic forces and the coupling effect between all degrees of freedom on the dynamic behavior of a TLP. The stiffness of the TLP was derived from a combination of hydrostatic restoring forces and restoring forces due to cables and the nonlinear equations of motion were solved utilizing Newmark's beta integration scheme. The effect of wave characteristics was considered.

키워드

참고문헌

  1. Abou-Rayan, A.M., Seleemah, A. and, El-gamal, A.R. (2012), "Response of square tension leg Platforms to hydrodynamic forces", Ocean Syst. Eng., 2(2), 115-135. https://doi.org/10.12989/ose.2012.2.2.115
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  10. Lee, H.H. and Wang, P.W. (2000), "Analytical solution on the surge motion of tension leg twin platform structural systems", Ocean Eng., 27, 393-415. https://doi.org/10.1016/S0029-8018(98)00047-X
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피인용 문헌

  1. Tethers tension force effect in the response of a squared tension leg platform subjected to ocean waves vol.4, pp.4, 2014, https://doi.org/10.12989/ose.2014.4.4.327