计及船首变形影响的舰船舷侧碰撞结构抗力解析预报方法研究  

Research on Analytical Method for Structural Resistance in Ship Side Collision Considering Bow Deformation Effect

作　　者：张一弛 周家有 袁昱超 唐文勇[1,2] ZHANG Yichi;ZHOU Jiayou;YUAN Yuchao;TANG Wenyong(State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;China Ship Development and Design Center,Wuhan 430064,China)

机构地区：[1]上海交通大学海洋工程全国重点实验室,上海200240 [2]上海交通大学船舶海洋与建筑工程学院,上海200240 [3]中国舰船研究设计中心,武汉430064

出　　处：《中国造船》2024年第5期248-258,共11页Shipbuilding of China

基　　金：上海市浦江人才计划资助项目(23PJ1406900)。

摘　　要：该研究旨在建立同时考虑碰撞船首及被撞船舷侧结构变形的碰撞损伤解析预报方法。采用非线性有限元方法开展了舰船舷侧碰撞仿真,而对碰撞船首分别进行了刚体与弹塑性体建模,探究碰撞艏部变形对舱室损伤的影响。介绍了船舶碰撞结构抗力解析预报方法,通过典型构件抗力的累加和修正,建立了结构损伤抗力的解析预报模型,并通过有限元计算进行了验证。基于船首的变形力-撞深曲线及被撞舱室的抗力曲线,建立了同步预报被撞舱室和撞击船首变形损伤的预报方法,并用有限元仿真进行验证。该方法能有效考量艏部及舱室变形,提高了舰船碰撞损伤预报的精度。The research aims to establish an analytical method for ship collision considering the deformation of the striking bow and the struck side structures.The nonlinear finite element method was employed to conduct the bow-side collision.The striking bow was modeled as a rigid and deformable body respectively to investigate the influence of bow deformability on the prediction of final cabin damage.The analytical prediction of the integrated side structure under ship collision was achieved by summing up the individual component results and making some corrections.The analytical results were verified with numerical simulations.Based on the resistance-displacement curve of the striking bow and the theoretical method for the struck side structure,the relative strength between the bow and the side structure can be updated during the collision,which formed a new method predicting the deformation of the struck cabin and the striking bow simultaneously.Finite element simulation results were used to verify the prediction results of this method.It shows that the new method can effectively consider the interaction of the bow and cabin,and improve the prediction accuracy of ship collision damage.

关 键 词：船舶碰撞 结构抗力 损伤预报 艏部变形 解析方法 

分 类 号：U661.4[交通运输工程—船舶及航道工程]