Dynamic Behavior of Tension Leg Platforms - Ramadan Ibrahim Ali Elgamal, Amr
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Among compliant platforms, the tension leg platform (TLP) is a hybrid structure which is generally used for deep water oil exploration. With respect to the horizontal degrees of freedom, it is compliant and behaves like a floating structure moored by vertical tubular members or "tethers". These tethers are pretensioned due to the excess buoyancy of the platform, whereas with respect to the vertical degrees of freedom, it is stiff and resembles a fixed structure and is not allowed to float freely. Dynamic analysis of squared and triangular TLP models under regular waves is presented,…mehr

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Produktbeschreibung
Among compliant platforms, the tension leg platform (TLP) is a hybrid structure which is generally used for deep water oil exploration. With respect to the horizontal degrees of freedom, it is compliant and behaves like a floating structure moored by vertical tubular members or "tethers". These tethers are pretensioned due to the excess buoyancy of the platform, whereas with respect to the vertical degrees of freedom, it is stiff and resembles a fixed structure and is not allowed to float freely. Dynamic analysis of squared and triangular TLP models under regular waves is presented, considering the coupling between surge, sway, heave, roll, pitch and yaw degrees of freedom. The analysis considers various nonlinearities produced due to change in the tether tension and nonlinear hydrodynamic drag force. The wave forces on the elements of the structure are calculated using Airy's wave theory with Chakrabarti (1971) approaches and Morison's equation, ignoring the diffraction effects.The nonlinear equation of motion is solved in the time domain using Newmark's beta integration scheme.
Autorenporträt
Amr Ramadan Ibrahim Ali Elgamal - Assistant Lecturer in Civil Engineering Department, Benha Faculty of Engineering, Benha university. Education: - B.Sc., Civil Engineering, 2004, Benha University, Faculty of Engineering, Benha, Egypt.- M.Sc., Civil Engineering, 2011, Benha University, Faculty of Engineering, Benha, Egypt.