摘要
为寻求轴向均布压载荷单独作用与表面载荷联合作用下大尺度板架轴向压载荷实验的最佳加载系统,以及研究加载系统与板架结构的相互作用关系,模拟搭接与焊接的2种板架与工装连接形式、单/双2种作动器数量和6种作动器基座尺寸,建立计算模型,并与理想轴向均布压载荷模型在结构响应、失效模式以及板架与工装的相互作用方面进行比较分析,揭示了大尺度板架模型结构响应随作动器基座尺寸的变化规律,发现针对所研究的板架结构,采用双动器400mm×400mm基座尺寸的搭接连接形式与理想状态的结构响应最为接近,各工况下失效模式一致,应力响应差异在–4.11%~–2.69%之间,x轴位移响应差异在1.32%~1.64%,z轴位移响应差异在2.49%~25.18%,极限承载力差异在–2.17%~0.69%。
In order to find the optimal loading system for large scale plate frame under the combined action of axial uniform pressure load alone and surface load,and to study the interaction relationship between loading system and plate frame structure,this paper simulates two types of plate frame and tooling connection forms of lap joint and welding,two types of single/dual actuator numbers,six types of actuator base sizes,establishes the computational model,and compares with the ideal axial uniform pressure load model in terms of structural response,failure mode and interaction between plate frame and tooling.It is found that for the studied plate frame structure,the lap joint connection with 400 mm×400 mm base size of double actuator is the closest to the ideal structural response,and the failure mode is the same under all working conditions,and the difference of stress response is between–2.69%~4.11%.x-axis displacement response difference between 1.32%~1.64%,z-axis displacement response difference between 2.49%~25.18%,and ultimate load capacity difference between–2.17%~0.69%.
作者
游瑞章
严仁军
邱屿
郭荣骄
YOU Ruizhang;YAN Renjun;QIU Yu;GUO Rongjiao(Departments of Naval Architecture Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Key Laboratory of High Performance Ship Technology of Ministry of Education,Wuhan University of Technology,Wuhan 430063,China)
出处
《实验技术与管理》
CAS
北大核心
2023年第6期109-114,154,共7页
Experimental Technology and Management
基金
工信部高技术船舶科研项目(MC-202002-C01-02)。
关键词
板架结构
工装连接形式
作动器基座尺寸
实验加载系统
仿真研究
plate frame structure
tooling connection form
actuator base size
experimental loading system
simulation study
