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Numerical Study on Wave-Induced Motion Response of Tension Leg Platform in Waves
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 Title & Authors
Numerical Study on Wave-Induced Motion Response of Tension Leg Platform in Waves
Cho, Yoon Sang; Nam, Bo Woo; Hong, Sa Young; Kim, Jin Ha; Kim, Hyun Jo;
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A numerical method to investigate the non-linear motion characteristics of a TLP is established. A time domain simulation that includes the memory effect using the convolution integral is used to consider the transient effect of TLP motion. The hydrodynamic coefficients and wave force are calculated using a potential flow model based on the HOBEM(higher order boundary element method). The viscous drag force acting on the platform and tendons is also considered by using Morison’s drag. The results of the present numerical method are compared with experimental data. The focus is the nonlinear effect due to the viscous drag force on the TLP motion. The ringing, springing, and drift motion are due to the drag force based on Morison's formula.
Morison equation;Drift motion;Ringing effect;Time domain analysis;Tension Leg Platform;
 Cited by
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