考虑船外板附着冰情况下的船冰碰撞累计损伤研究
Research on cumulative damage of ship-ice collisions considering ice attachment to the outer hull
张健 1李吟松 1陈保龙1
作者信息
- 1. 江苏科技大学船舶与海洋工程学院,江苏镇江 212003
- 折叠
摘要
采用数值模拟方法对极地商船与大块区域碎冰碰撞产生的冰载荷累计损伤展开研究,利用元胞自动机随机生成区域碎冰,研究考虑船外板附着冰影响下的船冰碰撞的动态响应.结果表明,在考虑船外板附着冰的情况下,船外板的塑性应变与吸收能量都大幅降低,碰撞力峰值没有太大的改变,但对碰撞力的冲量大幅减少.船舶在北极航行时对于结构强度而言船外板附着冰,对船冰碰撞的累计损伤有利.
Abstract
Research has been conducted on the cumulative damage caused by ice loads resulting from collisions between polar merchant ships and large areas of fragmented ice using numerical simulation methods.A cellular automaton was employed to randomly generate fragmented ice in the region.The study considered the dynamic response of ship-ice col-lisions with the influence of ice adhering to the ship's outer hull.The results indicate that,in this scenario,the plastic strain and energy absorption of the ship's outer plate significantly decrease.The peak collision force does not change significantly,but the impulse of the collision force decreases significantly.When polar vessels navigate with ice adhering to their outer hull,it is advantageous for the structural strength of the ship concerning cumulative damage from ship-ice collisions.
关键词
船-冰碰撞/冰区船舶/数值仿真Key words
ship-ice collision/ships in icy regions/numerical simulation引用本文复制引用
基金项目
国家自然科学基金资助项目(51979130)
国家自然科学基金资助项目(52201323)
出版年
2024
NETL
NSTL
万方数据