球鼻船艏斜撞船舶舷侧结构的变形机理研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (11) : 10-17.

论文

球鼻船艏斜撞船舶舷侧结构的变形机理研究

王泽平1,2，胡志强2,3，刘昆4，陈刚1,5

作者信息 +

Research on the deformation mechanism of ship side structure impacted obliquely by a bulbous bow

WANG Zeping1,2, HU Zhiqiang2,3, LIU Kun4, CHEN Gang1,5

Author information +

文章历史 +

摘要

随着航行在海上船舶数量的增加，船舶碰撞事故发生的概率也逐渐增加。球鼻船艏是船舶常见的设计形式，目前，对于船舶正撞场景的研究明显多于船舶斜撞场景，然而统计数据表明，船舶斜撞事故发生的概率要高于船舶正撞事故。因此，本文针对船舶球鼻艏斜撞舷侧结构开展了研究。研究中建立了符合球鼻船艏斜撞场景特征的舷侧外板拉伸变形模型、桁材变形模型以及横向肋板变形模型，运用塑性力学理论推导得到了这三种构件在斜撞过程中的变形阻力解析计算公式。此外，利用有限元软件LS_DYNA进行数值模拟，验证了解析计算结果的准确性。研究成果对于船舶舷侧结构耐撞性的评估具有较好的工程应用价值。

Abstract

With the increase of the number of ships sailing on the sea, the probability of ship collision accident also increases gradually. A bulbous bow is a common design form of a ship. Currently, the researches on head-on ship collision scenarios are more than those of oblique ship collision scenarios. However, statistical data show that the probability of oblique ship collision is quite higher than that of head-on ship collision. This paper carries out an investigation on the oblique collision scenarios when a bulbous bow impacting the ship side structures. The theoretical deformation models of the side shell plating, the web girder and the transverse frame are established, and the analytical calculation formulas of these three components in the process of oblique collision are derived by using the plastic mechanics theory. In addition, the finite element software LS_DYNA is used for numerical simulation to verify the accuracy of analytical calculation results. The research results have good engineering application value for evaluating the crashworthiness of ship side structures.

导出引用

王泽平1,2，胡志强2,3，刘昆4，陈刚1,5. 球鼻船艏斜撞船舶舷侧结构的变形机理研究[J]. 振动与冲击, 2022, 41(11): 10-17

WANG Zeping1,2, HU Zhiqiang2,3, LIU Kun4, CHEN Gang1,5. Research on the deformation mechanism of ship side structure impacted obliquely by a bulbous bow[J]. Journal of Vibration and Shock, 2022, 41(11): 10-17

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