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조윤상(Yoon Sang Cho),남보우(Bo Woo Nam),홍사영(Sa Young Hong),김진하(Jin Ha Kim),김현조(Hyun Jo Kim) 한국해양공학회 2014 韓國海洋工學會誌 Vol.28 No.6
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.