Journal of Marine Science and Application

, Volume 16, Issue 4, pp 458–464 | Cite as

Vortex-induced vibration of a tension leg platform tendon: Multi-mode limit cycle oscillations

  • Nabanita Datta


This paper studies the application of mathematical models to analyze the vortex-induced vibrations of the tendons of a given TLP along the Indian coastline, by using an analytical approach, analyzed using MATLAB. The tendon is subjected to a steady current load, which causes vortex-shedding downstream, leading to cross-flow vibrations. The magnitude of the excitation (lift and drag coefficients) depends on the vortex-shedding frequency. The resulting vibration is studied for possible resonant behavior. The excitation force is quantified empirically, the added mass by potential flow hydrodynamics, and the vibration by normal mode summation method. Non-linear viscous damping of the water is considered. The non-linear oscillations are studied by the phase-plane method, investigating the limit-cycle oscillations. The stable/unstable regions of the dynamic behavior are demarcated. The modal contribution to the total deflection is studied to establish the possibility of resonance of one of the wet modes with the vortex-shedding frequency.


tension leg platform vortex-induced vibration non-linear damping limit cycle oscillations multi-mode dynamics 


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Copyright information

© Harbin Engineering University and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Department of Ocean Engineering and Naval ArchitectureIndian Institute of TechnologyKharagpurIndia

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