The suitability of the Moormaster TM system for inland shipping

Considering quay side mooring in the Amsterdam-Rijnkanaal under the influence of passing ships

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Abstract

The suitability of the MoorMasterTM system by Cavotec MSL in inland shipping is researched. It is an innovative mooring system using vacuum pads with active motion control, utilising a PID controller. A case study of a 110m Large Rhine vessel moored directly beside the Amsterdam-Rijnkanaal (ARK) is performed. In order for the system to be suitable, the ship motions have to remain within certain mooring criteria, while passing vessels should not have to reduce speed. The forces on the moored vessel caused by the passing vessels are simulated using ROPES, a numerical method based on a 3D flow model, using the panel method. Three different passing vessels at three different passing distances are simulated. All passing vessels are simulated to sail at the maximum allowed speed in the ARK. Next, the manoeuvring model is used to set up the equations of motion of the moored vessel. The external force consists of the forces calculated in the Ropes simulations and the modelled forces of the MoorMasterTM units. Solving these equations results in the ship motions.

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