中国舰船研究2024，Vol.19Issue(z2)：141-146,6.DOI:10.19693/j.issn.1673-3185.03593
大开口船舶弹塑性响应的水池模型试验研究
Tank test study on elastoplastic response of large opening ship model
摘要
Abstract
[Objective]This study investigates the dynamic motion and structural response characteristics of ships with large openings in the middle under wave conditions.[Methods]Referring to the characteristics of cargo loading and large openings in the middle of container ships,a stiffened plate ship model is designed and manufactured.A series of linear and nonlinear operating condition tests are then conducted in a wave-making tank to measure the elastoplastic deformation of the ship model under the combined action of ballast and waves,as well as stress changes in the deck area.[Results]The results indicate that the appearance of structural plasticity slightly reduces the growth amplitude of the overall pitch motion and prolongs the occur-rence time of sagging deformation;the larger the wave amplitude,the more significant the high-frequency vi-bration of the structure it causes.[Conclusions]For ships with large openings in the middle,the high-fre-quency stress generated during sagging is greater than that during hogging,and the superposition of low-fre-quency stress poses a greater threat to ship safety,which needs to be considered in ship design.The proposed ship model can provide valuable references for the study of the plastic collapse of ships in waves.关键词
船体结构/转角变形/非线性/塑性/模型试验Key words
hull structure/corner deformation/nonlinear/plasticity/model test分类
交通工程引用本文复制引用
屈毫拓,刘维勤,陆晔,张亚强,吴卫国..大开口船舶弹塑性响应的水池模型试验研究[J].中国舰船研究,2024,19(z2):141-146,6.基金项目
国家自然科学基金资助项目(52071243) （52071243）
