ABSTRACT

According to the shape and structure characteristics of ray in the ocean, a passive damping anti-rolling device was designed for fishing boats, platforms on the ocean, pontoon, heavy lift vessel and small ships that were used in maritime navigation or offshore operations. The dynamics model of the systems were established using three-dimensional (3D) computational fluid dynamics (CFD) software, the damping characteristics of the anti-rolling device was analyzed. The mathematical equation of mechanical equilibrium that satisfied the damping characteristics were deduced for the first time, and it is verified through numerical simulation analysis. The engineering feasibility and satisfactory anti-rolling effect of the device were demonstrated, and it can be seen from the experimental results that the average anti-rolling effect can reach more than 45% and more than 70% at zero speed.

摘要

根据海洋中射线的形状和结构特点，针对用于海上航行或近海作业的渔船、海洋平台、浮筒、重型起重船和小型船舶设计了一种被动阻尼减摇装置。利用三维（3D）计算流体动力学（CFD）软件建立系统动力学模型，分析减摇装置的阻尼特性。首次推导出满足阻尼特性的力学平衡数学方程，并通过数值模拟分析进行验证。论证了该装置的工程可行性和良好的减摇效果，