集装箱坠落载荷作用下甲板板架结构响应理论预报方法研究  

Theoretical prediction method for response of deck grillage structure under container falling load

作　　者：郭德松 纵帅 王秀飞 费宝祥 王加夏 刘昆[1] GUO Desong;ZONG Shuai;WANG Xiufei;FEI Baoxiang;WANG Jiaxia;LIU Kun(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Military Representative Office in Qinhuangdao Area,Qinhuangdao 066000,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [2]驻秦皇岛地区军事代表室,河北秦皇岛066000

出　　处：《振动与冲击》2021年第21期142-149,193,共9页Journal of Vibration and Shock

基　　金：国家自然科学基金(51609110,51779110,51809122);江苏省自然科学基金(BK20191461);江苏省六大人才项目(KTHY-064)资助。

摘　　要：集装箱码头吊装属高风险作业,往往会由于吊装设备以及人员操作等原因导致集装箱坠落事故。由于集装箱重量大,起吊高度高,其发生坠落时巨大的冲击动能会导致被撞船体板架结构产生严重的损伤变形,因此,在船体结构设计阶段需考虑甲板结构的耐撞性能。选取标准集装箱坠落于甲板的坠落场景进行研究,通过仿真计算得到甲板结构变形过程,进而确定其损伤变形模式,运用塑性力学理论,建立集装箱坠落冲击下板架结构损伤解析预报方法。此外,针对集装箱不同坠落状态,讨论了集装箱与甲板线接触和面接触时结构损伤变形情况。该研究成果对船体板架结构抗撞性能预报与评估具有一定指导意义。Container terminal hoisting is a high-risk operation,hoisting equipment and personnel operation may lead to container falling accidents.Due to heavy weight and high lifting height of container,its huge impact kinetic energy when container falls can cause serious damage and deformation of the impacted hull deck grillage structure.Therefore,the crashworthiness of deck structure should be considered in design stage of hull structure.Here,the scene of standard container falling on hull deck was studied.The deformation process of deck structure was obtained through simulation calculation to further determine deck structure damage deformation mode.Using the theory of plastic mechanics,the analytical prediction method for deck grillage structure damage under impact of container falling was established.In addition,aiming at different falling states of container,the deck structure damage deformation situation during container in line contact and surface one to deck were discussed.It was shown that the study results have a certain guiding significance for prediction and evaluation of anti-collision performance of hull deck grillage structure.

关 键 词：箱型坠物 甲板结构 损伤机理 数值仿真 解析预报 

分 类 号：U674.941[交通运输工程—船舶及航道工程]