摘要
为探究某核动力堆舱舱段结构在碰撞载荷作用下的损伤特性以及堆舱结构内部的冲击环境,开展缩比堆舱结构模型水上碰撞试验,进一步建立堆舱舱段有限元模型;开展碰撞数值仿真分析,通过与试验的撞击力、堆舱内部典型位置的加速度响应及舷侧结构的变形损伤情况进行对比,典型工况的撞击力峰值误差最大误差为8.7%,加速度最大峰值的最大误差为19.5%和最大损伤变形值的最大误差为13.3%,验证了数值计算方法的合理性。进而开展堆舱结构整船模型在受到15000 t级远洋渔船以10 kn航速碰撞的数值计算分析,舷侧结构产生5.4 m×3.9 m的破口及3.9 m×1.1 m的凹陷损伤,堆舱顶部防护结构产生了5.6 m×1.0 m范围的局部塑性变形,具有较好的抗碰撞性能。研究工作可为同类结构的碰撞模型试验研究提供参考。
In order to investigate the damage characteristics of a nuclear power reactor compartment segment structure under collision loading and the impact environment inside the compartment structure.A scaled-down reactor compartment structure model on-water collision test was carried out,and a finite element model of the reactor compartment segment was further established to carry out collision numerical simulation and analysis.By comparing with the impact force size,the acceleration response of the typical position inside the reactor compartment and the deformation and damage of the side structure,the maximum error of the peak impact force of the typical conditions is 8.7%,the maximum error of the peak acceleration is 19.5%and the maximum error of the maximum damage and deformation values is 13.3%,which verifies the reasonableness of the numerical calculation method.The numerical calculation analysis of the whole ship model of the stacking compartment structure was carried out when it was collided by a 15000 t-class ocean-going fishing vessel at a speed of 10 knots,and the side structure produced a breach of 5.4m×3.9m and a dent damage of 3.9 m×1.1 m,and the top protective structure of the stacking compartment produced a localized plastic deformation in the range of 5.6m×1.0m,which had a better collision resistance performance.The research work can provide a reference for the collision modeling study of similar structures.
作者
顾颖宾
林一
陈励志
孔祥韶
GU Yingbin;LIN Yi;CHEN Lizhi;KONG Xiangshao(China National Nuclear Power Co.,Ltd.,Beijing 100045,China;Green and Smart River-Sea-Going Ship,Cruise and Yacht Research Center,Wuhan University of Technology,Wuhan 430063,China)
出处
《舰船科学技术》
北大核心
2025年第16期69-75,共7页
Ship Science and Technology
关键词
堆舱结构
碰撞试验
结构响应
数值计算
compartment structure
crash test
structural response
numerical simulation
作者简介
顾颖宾(1971-),男,博士,正高级工程师,研究方向为核反应堆运行管理、海洋核动力技术。
