Abstract
This paper deals with modelling of a remotely operated towed vehicle (ROTV) and attached umbilical cable, as a means of exploration and research in the ocean. Fossen's approach is used for modelling the ROTV using XFLR5 for airfoil analysis. The lumped mass-spring approach with fourth-order Runge-Kutta solver is used as umbilical cable model. It is shown that the mean square error exponentially increases when the segment length exceeds 4 meters, and the computation time is linearly increasing with the number of nodes. The results show that the umbilical cable model combined with the ROTV model can reproduce the output of the real data when taking modelling uncertainties into consideration.
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