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首页> 外文期刊>Journal of offshore mechanics and arctic engineering >Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps
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Dynamic Simulation and Control of an Active Roll Reduction System Using Free-Flooding Tanks With Vacuum Pumps

机译：带有真空泵的自由淹没储罐的主动减摇系统的动态仿真和控制

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摘要

Ship roll motion is critical for offshore operations due to its lack of damping mechanism. This paper demonstrates a dynamic simulation scheme of an active roll reduction system using free-flooding tanks controlled by vacuum pumps. A tank is installed on each side of a catamaran. Both the tank hatches are opened to the sea and the air chambers of both tanks are connected by an air duct. Vacuum pumps and air valve stabilized the wave-induced roll motion by controlling the water levels in the tanks through a feedback controller. The catamaran is a dynamic model with single degree-of-freedom (DOF) in roll, and its hydrodynamic behavior is calculated using potential theory by SHIPX. The air chambers are modeled as isothermal processes of ideal gas. The behavior of the liquid flow in a tank is simulated by incompressible Reynolds-averaged Navier-Stokes solver with the volume of fluid model, then summarized as a response function for the vessel model. A simplified control plant model for the vacuum pumps is proposed where higher order behaviors are neglected and the external wave-induced load is unknown. A parameter-dependent observer and a backstepping controller are adopted to estimate the external load and to reduce the roll motion. The system stability is proved by Lyapunov's direct method. The performance of the entire system is evaluated in terms of roll reduction capability and power cost. The system is more suitable for roll reduction in low-speed or resting conditions.
机译：由于缺少阻尼机制，船侧倾运动对于海上作业至关重要。本文演示了一个主动减摇系统的动态仿真方案，该系统使用由真空泵控制的自由注水储罐。坦克安装在双体船的每一侧。两个油箱舱口均向海敞开，并且两个油箱的气室通过风管相连。真空泵和空气阀通过反馈控制器控制水箱中的水位，从而稳定了波浪引起的侧倾运动。双体船是一个具有滚动单自由度（DOF）的动力学模型，其水动力行为是通过SHIPX使用势能理论计算的。气室被建模为理想气体的等温过程。用不可压缩的雷诺平均Navier-Stokes求解器对流体在容器中的流动行为进行模拟，然后将其作为流体模型，然后归纳为容器模型的响应函数。提出了一种简化的真空泵控制装置模型，该模型忽略了较高阶的行为，并且外部波动引起的负载未知。采用参数相关的观察者和后推控制器来估计外部载荷并减少侧倾运动。系统稳定性通过李雅普诺夫的直接方法证明。整个系统的性能根据减摇能力和动力成本进行评估。该系统更适合在低速或静止条件下减少侧倾。

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  • 来源
    《Journal of offshore mechanics and arctic engineering》 |2018年第6期|061302.1-061302.9|共9页
  • 作者

    Xu Jiafeng; Ren Zhengru; Li Yue; Skjetne Roger; Halse Karl Henning;

  • 作者单位

    Norwegian Univ Sci & Technol, NTNU, Dept Ocean Operat & Civil Engn, Ctr Res Based Innovat Marine Operat SFI MOVE, NO-6009 Alesund, Norway;

    Norwegian Univ Sci & Technol, Ctr Res Based Innovat Marine Operat SFI MOVE, Ctr Autonomous Marine Operat & Syst AMOS, Dept Marine Technol,NTNU, NO-7491 Trondheim, Norway;

    Norwegian Univ Sci & Technol, NTNU, Dept Ocean Operat & Civil Engn, Ctr Res Based Innovat Marine Operat SFI MOVE, NO-6009 Alesund, Norway;

    Norwegian Univ Sci & Technol, Ctr Res Based Innovat Marine Operat SFI MOVE, Ctr Autonomous Marine Operat & Syst AMOS, Dept Marine Technol,NTNU, NO-7491 Trondheim, Norway;

    Norwegian Univ Sci & Technol, NTNU, Dept Ocean Operat & Civil Engn, Ctr Res Based Innovat Marine Operat SFI MOVE, NO-6009 Alesund, Norway;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
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