船舶力学
船舶力學
선박역학
JOURNAL OF SHIP MECHANICS
2014年
1期
106-114
,共9页
ship and ice collision%bulbous bow%damage deformation%collision force%energy absorption
文章利用非线性有限元法对船-冰碰撞进行了数值仿真,分别研究了船舶球鼻艏与同质量不同形状、同形状不同质量冰体发生碰撞以及不同碰撞速度下的动态结构响应特性,揭示了不同工况下船舶的损伤变形、碰撞力和能量吸收的规律,得到了冰体形状、冰体质量、碰撞速度等因素对船-冰碰撞的影响机理,为提高船舶抗冰载荷设计提供参考。
文章利用非線性有限元法對船-冰踫撞進行瞭數值倣真,分彆研究瞭船舶毬鼻艏與同質量不同形狀、同形狀不同質量冰體髮生踫撞以及不同踫撞速度下的動態結構響應特性,揭示瞭不同工況下船舶的損傷變形、踫撞力和能量吸收的規律,得到瞭冰體形狀、冰體質量、踫撞速度等因素對船-冰踫撞的影響機理,為提高船舶抗冰載荷設計提供參攷。
문장이용비선성유한원법대선-빙팽당진행료수치방진,분별연구료선박구비수여동질량불동형상、동형상불동질량빙체발생팽당이급불동팽당속도하적동태결구향응특성,게시료불동공황하선박적손상변형、팽당력화능량흡수적규률,득도료빙체형상、빙체질량、팽당속도등인소대선-빙팽당적영향궤리,위제고선박항빙재하설계제공삼고。
A ship-ice collision numerical simulation is performed by using nonlinear finite element method. Structural dynamic response is carried out by researching the collisions between bulbous bow and ice with the same weight but different shapes, the same shape but different weights and different collision veloci-ties. The regularity of the damage deformation of the ship, the collision force and the energy absorption un-der different working conditions are revealed. The impact mechanism of the shape of ice, the weight of ice and the collision velocity on ship-ice collision is obtained, which provides reference for anti-ice load struc-tural design of ships.