Simulation Study on Motions of a Towed Collector for a Manganese Nodule Mining System

摘要

The motion characteristics of a towed collector for a manganese nodule mining system which consists of a mining ship, lifting pipes, flexible hoses and the collector are investigated by realistic computer simulations. The collector is controlled by the ship's tow only. Three typical scenarios are simulated: collector towed at sea, collector towed at sea bed, and collector landing on the sea bed. Some ship speed is important to avoid kinks in the hose at landing. Current from abaft removes landing problems. Two tugs may be necessary to operate safely in adverse wave and wind conditions.