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Study on the influence of ship collision upon propulsion shafting

机译：船舶碰撞对推进轴承影响的研究

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In this study, a mathematical model of a struck ship based on the dynamic stiffness of the hull was developed; a comparison of the impact of collision in the models of dynamic stiffness and static stiffness, showed that the vibration amplitude in the dynamic stiffness was larger than that in the static stiffness in the stress accumulation stage. A simulation of shafting in colliding ships was performed based on a finite-element model using the ANSYS software, and the numerical simulation values and theoretical values were observed to be similar. To analyze the influence of ship collision on propulsion shafting, a test rig on ship collision based on dynamic stiffness was designed, and the experimental values agreed well with the numerical simulation values. From a practical perspective, this study could generate a map similar to an operating guide.
机译：在这项研究中，开发了基于船体动态刚度的击中船的数学模型; 碰撞在动态刚度和静态刚度模型中的影响的比较，表明动态刚度中的振动幅度大于应力累积阶段的静刚度中的振动幅度。 基于使用ANSYS软件的有限元模型进行碰撞船舶在碰撞船上的模拟，并且观察到数值模拟值和理论值是相似的。 为了分析船舶碰撞对推进轴系的影响，设计了一种基于动态刚度的船舶碰撞的试验器，实验值与数值模拟值吻合得很好。 从实际角度来看，该研究可以生成类似于操作指南的地图。

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