Abstract
The paper presents the results of experimental studies of the motion of a TLP type wind platform on a regular wave and the results of calculations in the Ansys AQWA program. Two different available methods of modeling additional damping related to viscosity were used, i.e. linear damping and quadratic (Morison) damping. The damping coefficients were determined based on RANSE CFD calculations of forced oscillations of the platform for different frequencies and amplitudes. The obtained values indicate that the use of the quadratic coefficient gives more accurate results. This is due to the fact that its value does not change significantly depending on the frequency and amplitude of the excitation, in contrast to the linear coefficient, where the observed differences are significant.