Hybrid anti-rolling system for the oceanographic research vessel 'MIRAI'

摘要

A new type anti-rolling device has been developed for the oceanographic research vessel "MIRAI"( 8672 GT ). The hybrid system combines the advantages of both active and passive mechanisms thepassive mechanism uses a moving 100 t weight on arc-shaped rails like the swing of the pendulum,and the active mechanism drives the mass with computer-controlled electric motors by real timesensing of ship rolling. This combination allows the device to be compact and to achieve highperformance to reduce rolling during cruising and drifting under various loading conditions and seastates. The sea trial results have proved its performance and "MIRAI" is now in active use.