| 摘要 |
The invention relates to a vessel comprising a hull and a heave compensation system for a load that is suspended from the hull, wherein the heave compensation system comprises a winch with a drum on the hull and a hoisting cable around the drum for hoisting and suspending the load, a first hydraulic motor and a second hydraulic motor that are operatively connected to the drum to rotate synchronously with the drum, and a hydraulic drive system with a hydraulic circuit to control the hydraulic fluid to the hydraulic motors, wherein the hydraulic drive system is able to switch between a hoisting mode and a heave compensation mode wherein ln the hoisting mode the hydraulic motors work parallel, and wherein in the heave compensation mode only the first hydraulic motor is powered while the second hydraulic motor is connected to a biased accumulator assembly. |
