Motion compensated offshore knuckle boom crane: A mechanical feasibility study

To overcome the problem of wave-induced vessel motions on the crane tip, technologies have been developed to compensate for these motions. Most vessels nowadays, are equipped with dynamic positioning systems, these systems reduce the yaw, surge and sway movement of the vessel. This leaves, the motions roll, pitch and heave uncompensated. To...

Simulation Study on the Active Motion Compensation of an Offshore Gangway

During offshore installations in harsh sea conditions, the involved gangway system must satisfy rigorous requirements in terms of safety and accuracy. The forces resulting from the vessel motion have an extensive effect on the overall gangway structure and its lifetime. Moreover, vessel motion handicaps the operator during fine positioning of...