船首形状对舷侧结构碰撞性能的影响研究

船舶碰撞问题一直是船舶力学界研究的热点,但以往的研究并没有深入分析各类船舶的不同艏部形状对碰撞性能所产生的影响.为此利用数值仿真软件MSC/Dytran,对具有不同曲率的球鼻型船首和不同张角的常规船首撞击下舷侧结构的碰撞性能进行了定量的比较研究.结果表明,撞击船首部形状对被撞船舷侧结构的碰撞性能产生显著的影响,撞击船球鼻曲率形状参数越小或艏部张角越大,舷侧结构极限撞深提高,碰撞力增大,极限撞深时的吸能增多.

Study on the Influence of Bow Shape to the Side Structure during Ship Collision

The problem about Ship collision is the hot point of the ship mechanics. However, the research work in the past always ignored the influence of the shapes of different striking bows. The quantitative comparison analysis was performed for striking with different bow curvatures and bow angles. The results show that different shapes of the striking bows have an obvious impact on the collision capability. The smaller of the striking bulb curvatures parameter or the bigger of the striking bow angles, the deeper ...