A SIMULINK towing model is developed from the surge, sway, and yaw equations of motion in order to study the horizontal maneuverability of vessels in a semirigid towing operation. This analysis is conducted in order to validate rigid-connection towing and to give insight into the design of the tow connector. The connection is modeled as a linear spring and the maneuverability of the vessels is studied as the stiffness is varied from conditions of semi to completely rigid. This study is based on two Swath hull vessels, the SLICE and KAIMALINO, towing in close proximity under calm water conditions.
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