Author(s): Aleksey Marchenko; Christian Ulrich
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Abstract: Experiments on icebergs towing in the Barents Sea in 2004 and 2005 are analyzed. Mathematical model of iceberg towing is developed to simulate the tension in the towing rope by the towing with one branch and two branches rope. Numerical simulations demonstrate that monotonic increasing of ship propulsion causes numerous hitches of rope tension following with few minutes interval between successive hitches. Peak tensions of the rope created by the hitches can exceed rope strength. Rotational mode of iceberg motion is constructed and investigated. It is shown that iceberg rotation during the towing increases rope tension significantly in comparison with the towing without iceberg rotation.
Year: 2008