Engineering Design And Research Of 8000KW Rescue And Salvage Vessel

The ship is effected by ocean wave, ocean wind and ocean current at sea, and it may move at 6-DoF. For common ship type at present, the motion of roll effects the seakeeping of the ship remarkably, therefore, the stabilizer is applied to reduce the ship roll amplitude .Anti-rolling tank(ART) is a typical anti-rolling device, the flow of water in the tank depends on the energy of ship roll motion and the moment of the water reduce the amplitude of ship roll, the ART has the feathers of simple structure and low cost, and the ART has well stabilization effect in zero speed and low speed .The ART has three kinds of type: passive tank, controlled passive and active tank. The controlled passive tank have the functions of open ice and reduce the heel of the ship, and is widely used in the RORO ship, research and exploration vessel and cargo ship and so on.The fin stabilizer and ART are installed in the 8000Kw rescue and salvage Vessel for well seakeeping ability, and have stabilization effect at high and low speed. The ART is Intering controlled passive tank system, which extends natural period of ART through pneumatic valve control. In china, many research departments have developing capability of the ART, but lack of engineering practice. Therefore, analyzing the system of ART which is installed on 8000Kw rescue and salvage vessel ,not only could improve the maintenance levels, but also make the ART designed by Chinese install on the ship as soon as possible and reach the peer-level of other-countries.The research object of this paper is controlled passive tank system installed on the 8000Kw rescue and salvage Vessel. For maintenance and development of the system, the operating principle, structure designing and control method are researched. According to the parameters of ship, the ART and navigation configuration of ship, to analyze the stabilization effect of the ART and designing method of the ART. Through above analyzed content, the technical data of designing ART could be supplied, the control system of the ART is designed, the researching content could bring applying technique for installing the ART on the ship.