楔形船艏舷侧撞击场景下甲板结构损伤预报解析方法研究  

Analytical method for predicting deck structure damage in scenarios of ship side impacted by wedge shaped bow

作　　者：周家有 赵延杰 张伦平[3,4] 张一弛 袁昱超 唐文勇 ZHOU Jiayou;ZHAO Yanjie;ZHANG Lunping;ZHANG Yichi;YUAN Yuchao;TANG Wenyong(State Key Lab of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;China Ship Scientific Research Center,Wuxi 214082,China;Taihu Lab of Deepsea Technological Science,Wuxi 214082,China)

机构地区：[1]上海交通大学海洋工程国家重点实验室,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]中国船舶科学研究中心,江苏无锡214082 [4]深海技术科学太湖实验室,江苏无锡214082

出　　处：《振动与冲击》2023年第23期41-48,64,共9页Journal of Vibration and Shock

摘　　要：船舶碰撞事故是威胁海上航行安全的重要隐患之一,同时,船舶碰撞后结构损伤的快速预报方法研究对于船舶抗撞性能设计与优化具有重要意义。经对单层壳船体舷侧结构遭受楔形船艏大撞深、多角度碰撞场景下甲板结构的损伤变形机理的研究;根据其结构变形模式,将甲板结构划分为四类构件并建立了各构件对应变形模式的简化理论模型,基于上限定理推导了结构抗力解析公式;该方法考虑了构件碰撞过程中的多模式损伤演化及不同构件变形时的耦合作用。通过多个碰撞场景的对比验证,提出了新的解析方法与数值结果对比良好;研究成果对大撞深、多角度碰撞场景下甲板结构损伤评估具有工程应用价值。Collision accidents are one of important hidden dangers to threaten the safety of ship navigation at sea.Meanwhile,study on rapid prediction method of structural damage after collisions is of great significance for design and optimization of ship collision resistance performance.Here,damage and deformation mechanisms of deck structure of a single-hulled ship side were studied in scenarios of large wedge bow collision depth and multi-angle collisions.According to its structural deformation modes,the deck structure was divided into 4 types of components and simplified theoretical models for the corresponding deformation modes of various components were established.Based on the upper limit theorem,analytical formulas for structural resistances were derived.This method could consider multimodal damage evolutions during component collision and the coupling effect when different components deforming.Through contrastive verification of multiple collision scenarios,it was shown that the newly proposed analytical method here has good results compared to numerical results;the study results have higher engineering application value for damage assessment of deck structure in scenarios of large collision depth and multi-angle collisions.

关 键 词：船舶斜撞 楔形艏 耦合效应 解析计算 数值仿真 

分 类 号：U661.4[交通运输工程—船舶及航道工程]