为有效量化波浪对动力定位船舶的作用，建立波浪扰动的数学模型，进而基于Matlab/Simulink建立波浪扰动的仿真平台, 计算任意浪高和浪向条件下的海洋环境对动力定位船舶的波浪扰动力和力矩.以一艘供给船为例，设定不同的浪高、浪向，预报波浪扰动作用力和力矩对船舶的影响，仿真结果证明了该波浪扰动数学模型的有效性.该仿真平台可用于船舶动力定位系统控制器设计的验证，以提高船舶动力定位控制系统在恶劣环境下的可靠性和鲁棒性.
Abstract
In order to effectively calculate the effect acted on dynamic positioning (DP) ships by waves, the mathematical model of the wave environmental disturbances is established. Based on the Matlab/Simulink, a simulation platform for the wave disturbance is set up to calculate the effect between ocean environment with wave disturbing force and moment of dynamic positioning ship in any wave height and any wave angle. A supply ship is taken as an example, the influence of wave disturbances forces and moments on the positions of the ship are forecasted based on different wave height and wave angle. Simulation results show the effectiveness of the proposed mathematical model. The simulation platform can be used for testing the design of dynamic positioning systems controller, which can improve the performance and robustness of the system in extreme sea conditions.
关键词
船舶 /
动力定位 /
波浪扰动 /
建模/仿真
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Key words
ship /
dynamic positioning /
wave disturbances /
modeling/simulation
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参考文献
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脚注
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基金
国家自然科学基金资助项目(51079013;51109021); 交通部应用基础研究项目(2012-329-225-070)；辽宁省教育厅高等学校科研资助项目(LT2010013); 中央高校基本科研业务费专项资金资助项目(2011QN109).
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