System Design Laboratory

The block erection operations in the shipyards generally include block lifting, transporting, turnover, and lowering procedure. During the operation, there are potential risks such as interferences with wire ropes, overweight, collision, which can lead to severe accidents. To check such risks in advance, the physics-based simulations are often required before the actual operation. For this, detailed modeling of the equipment and the operation is necessary to reflect the real situation accurately, which is impossible with conventional modeling methods. Meanwhile, in the actual operation, the position and the orientation of the block should also be precisely controlled to avoid any risks. However, the actual operations are performed manually by the operator, and the cranes used for the erection of the block consist of sophisticated equipment, which makes them difficult to control.