摘要
船舶在遭遇碰撞搁浅事故时,加筋板是最先受到载荷的构件,其耐碰撞性能直接影响船体结构的安全性.文中以船体典型加筋板结构为研究对象,基于重量等效原则设计了结构近似的传统加筋板与U型加强筋加筋板,通过开展落锤碰撞试验,从损伤变形、碰撞载荷方面分析结构响应.结果表明,在相同撞击能量的情况下,U型加强筋加筋板的极限撞深与残余变形均小于传统加筋板,在碰撞后期,U型加强筋加筋板的碰撞力明显高于传统加强筋加筋板.
When a ship encounters collision and grounding accident,the stiffened plate is the first component to be loaded,and its impact resistance directly affects the safety of the ship structure.In this paper,the typical stiffened plate structure of ship hull is taken as the research object.Based on the principle of weight equivalence,the U-shaped stiffened plate with similar structure is designed.The structural response is analyzed from the aspects of damage deformation and impact load by carrying out drop hammer impact test.The results show that under the same impact energy,the ultimate impact depth and residual deformation of the U-shaped stiffened plate are smaller than those of the traditional stiffened plate,and the impact force of the U-shaped stiffened plate is obviously higher than that of the traditional stiffened plate in the late impact period.
作者
刘昆
徐勤茂
王秀飞
洪智超
LIU Kun;XU Qinmao;WANG Xiufei;HONG Zhichao(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212100,Chimna)
出处
《江苏科技大学学报（自然科学版）》
CAS
北大核心
2023年第3期7-11,共5页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(52271279,52101359)。
关键词
面内冲击载荷
落锤冲击试验
U型加筋板
损伤变形
in-plane impact load
drop weight impact test
U-stiffened plate
damage deformation
