基于全耦合分析技术的折叠式夹层板船体结构碰撞性能研究

船舶碰撞事故往往会带来灾难性的后果,船舶碰撞性能以及耐撞结构设计方面的研究一直受到国内外学者的重视。本文基于全耦合数值仿真分析技术,以一多用途船舷侧结构为研究对象,设计出两种夹层板新式抗冲击舷侧结构,并对原结构和新式结构的碰撞性能进行比较。研究结果表明,新式舷侧结构发生损伤变形的区域较大,参与抵抗撞击的构件增多,损伤变形程度有所降低,且在总重量相当的条件下总吸能有大幅提高,可以有效缓解高能碰撞对结构的危害。

Research on the collision performance of sandwich ship structure based on fully-coupled analysis method

Ship collision always results in serious consequences, the performance of ship collision and the crashworthiness structure design has been the concern of scholars at home and abroad. In this article, we design two kinds of sandwich side structures of a multipurpose ship and compare all of their collision performance based on fully-coupled analysis method. Results show that, comparing to the traditional side structure, the sandwich side structures has the larger damage deformation area, more components involved in resisting the impact but lower damage deformation degree, what is more, the total energy absorption has obviously increased. So the sandwich structure can effectively alleviate the damage of high energy collision.