As the aquaculture sites are getting more exposed to wind, waves and current, better understanding of forces between vessels and structure is needed. The reliability of mooring lines and connecting lines between vessel and structure should be investigated numerically. To improve the knowledge of contact forces between vessels and structures, an example study is performed.

A study of a well boat being moored to a fish cage is conducted in SIMA[1] using a coupled SIMO-RIFLEX simulation to solve motion and force response of the coupled system. Regular waves and current are used in the study. RIFLEX is used to model the fish cage and mooring lines. WAMIT is used to calculate the hydrodynamic properties of the well boat imported to SIMO in the SIMA workbench.

The results from the simulation will be published at the 28th International Ocean and Polar Engineering Conference (ISOPE), June 10-15, 2018 in Sapporo, Japan.